Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in AOCI (loss) related to shareholders' equity (Details)

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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in AOCI (loss) related to shareholders' equity (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance $ 618  
Ending balance 715 $ (120)
Foreign Currency Translation    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 1 3
Other comprehensive income before reclassifications, net of tax 0 (1)
Ending balance 1 2
Derivative Instruments    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 68 (1)
Other comprehensive income before reclassifications 168 10
Income tax (39) (2)
Other comprehensive income before reclassifications, net of tax 129 8
Gains reclassified from AOCI to net income (42) (1)
Income tax expense 9 0
Net gains (losses) reclassified from AOCI to net income (33) (1)
Ending balance 164 6
Pension and OPEB    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 549 (135)
Gains reclassified from AOCI to net income 1 9
Income tax expense 0 (2)
Net gains (losses) reclassified from AOCI to net income 1 7
Ending balance $ 550 $ (128)