v3.25.4
ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 3,117 $ 3,069 $ 2,937
Other comprehensive income (loss), net of taxes, before reclassifications 48 (54) (55)
Amounts reclassified from AOCI, net of taxes 24 17 196
Other comprehensive income (loss), net of taxes 72 (37) 141
Ending balance 3,052 3,117 3,069
Non-cash, cumulative currency translation adjustment loss 24 17 196
Accumulated Other Comprehensive (Loss) Gain      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (692) (655) (796)
Ending balance (620) (692) (655)
Currency Translation Adjustments      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (96) (18) (238)
Other comprehensive income (loss), net of taxes, before reclassifications 53 (76) 37
Amounts reclassified from AOCI, net of taxes 0 (2) 183
Other comprehensive income (loss), net of taxes 53 (78) 220
Ending balance (43) (96) (18)
Non-cash, cumulative currency translation adjustment loss 0 (2) 183
Net Actuarial (Loss) Gain and Prior Service Costs      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (597) (637) (566)
Other comprehensive income (loss), net of taxes, before reclassifications (3) 17 (91)
Amounts reclassified from AOCI, net of taxes 25 23 20
Other comprehensive income (loss), net of taxes 22 40 (71)
Ending balance (575) (597) (637)
Non-cash, cumulative currency translation adjustment loss 25 23 20
Unrealized (Loss) Gain from Cash Flow Hedges      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 1 0 8
Other comprehensive income (loss), net of taxes, before reclassifications (2) 5 (1)
Amounts reclassified from AOCI, net of taxes (1) (4) (7)
Other comprehensive income (loss), net of taxes (3) 1 (8)
Ending balance (2) 1 0
Non-cash, cumulative currency translation adjustment loss $ (1) $ (4) $ (7)