Annual report [Section 13 and 15(d), not S-K Item 405]

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Restructuring (Details)

v3.25.4
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Restructuring (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve $ 78 $ 71 $ 0
Restructuring, Settlement and Impairment Provisions 130 210  
Payments for Restructuring 84 60  
Restructuring Reserve, Settled without Cash 39 79  
Restructuring Charges 86 129 0
Restructuring Costs and Asset Impairment Charges   210  
OPEB      
Restructuring Cost and Reserve [Line Items]      
Special termination benefits 5 2  
Employee Severance      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve 70 56 0
Restructuring, Settlement and Impairment Provisions 59 82  
Payments for Restructuring 45 26  
Restructuring Reserve, Settled without Cash 0 0  
Other Restructuring      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve 8 15 0
Restructuring, Settlement and Impairment Provisions 32 49  
Payments for Restructuring 39 34  
Asset Impairments      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve 0 0 $ 0
Restructuring, Settlement and Impairment Provisions 39 79  
Payments for Restructuring 0 0  
Restructuring Reserve, Settled without Cash $ 39 $ 79