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CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (UNAUDITED) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Statement of Comprehensive Income [Abstract]        
Change in net actuarial loss, tax $ (8) $ (5) $ (15) $ (11)
Change in net prior service cost, tax 1 1 1 2
Foreign currency translation adjustment and other, tax $ 0 $ 0 $ 0 $ 0