Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Fair Value of Plan Assets (Details)

v3.20.4
PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Fair Value of Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount $ 5,332 $ 749 $ 687
Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 783 260 240
Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 2,431 515  
Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 331 185  
Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 807 22  
Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 221 41  
Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 670 212 $ 229
Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 38 34  
Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 1,424 0  
Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 193 0  
Defined Benefit Plan, Equity Securities, US | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 1,950 169  
Defined Benefit Plan, Equity Securities, US | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 119 12  
Defined Benefit Plan, Equity Securities, US | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 1,163 169  
Defined Benefit Plan, Equity Securities, US | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 26 12  
Defined Benefit Plan, Equity Securities, US | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Defined Benefit Plan, Equity Securities, US | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Defined Benefit Plan, Equity Securities, US | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Defined Benefit Plan, Equity Securities, US | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Defined Benefit Plan, Equity Securities, US | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 787 0  
Defined Benefit Plan, Equity Securities, US | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 93 0  
International | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 810 161  
International | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 55 7  
International | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 615 161  
International | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 6 7  
International | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
International | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
International | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
International | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
International | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 195 0  
International | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 49 0  
US Government Agencies Debt Securities | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 476 33  
US Government Agencies Debt Securities | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 156 0  
US Government Agencies Debt Securities | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 141 11  
US Government Agencies Debt Securities | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 62 0  
US Government Agencies Debt Securities | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 295 22  
US Government Agencies Debt Securities | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 94 0  
US Government Agencies Debt Securities | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
US Government Agencies Debt Securities | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
US Government Agencies Debt Securities | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 40 0  
US Government Agencies Debt Securities | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
US Corporate Bonds | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 1,281 174  
US Corporate Bonds | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 364 207  
US Corporate Bonds | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 512 174  
US Corporate Bonds | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 237 166  
US Corporate Bonds | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 466 0  
US Corporate Bonds | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 127 41  
US Corporate Bonds | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
US Corporate Bonds | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
US Corporate Bonds | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 303 0  
US Corporate Bonds | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Non-US and Other Bonds | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 46 0  
Non-US and Other Bonds | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Non-US and Other Bonds | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 46 0  
Non-US and Other Bonds | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Non-US and Other Bonds | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 99 0  
Absolute return fixed income | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 51 0  
Absolute return fixed income | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Absolute return fixed income | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 99 0  
Absolute return fixed income | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 51 0  
Hedge Funds [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 118 40  
Hedge Funds [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 14 12  
Hedge Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Hedge Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Hedge Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Hedge Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 118 40  
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 14 12  
Hedge Funds [Member] | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Hedge Funds [Member] | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Private Equity Funds [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 114 50  
Private Equity Funds [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 3 2  
Private Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Private Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Private Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Private Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 114 50  
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 3 2  
Private Equity Funds [Member] | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Private Equity Funds [Member] | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Structured Credit [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 264 52  
Structured Credit [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 7 6  
Structured Credit [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Structured Credit [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Structured Credit [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Structured Credit [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Structured Credit [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 264 52  
Structured Credit [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 7 6  
Structured Credit [Member] | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Structured Credit [Member] | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Real Estate [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 174 70  
Real Estate [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 14 14  
Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 174 70  
Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 14 14  
Real Estate [Member] | Fair Value Measured at Net Asset Value Per Share | Pension Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Real Estate [Member] | Fair Value Measured at Net Asset Value Per Share | Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan, Information about Plan Assets [Abstract]      
Defined Benefit Plan, Plan Assets, Amount $ 0 $ 0