v3.25.2
ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity, beginning balance $ 765 $ 751 $ 727 $ 742
Equity, ending balance 799 796 799 796
Accumulated other comprehensive income / (loss)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity, beginning balance (1) (11) (14) 0
Other comprehensive income / (loss) before reclassification 31 (6) 43 (17)
Amounts reclassified from accumulated other comprehensive income / (loss) to the income statement (4) 1 (5) 1
Amounts reclassified from accumulated other comprehensive income / (loss) to retained earnings     2  
Equity, ending balance 26 (16) 26 (16)
Post-employment benefit plans        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity, beginning balance 82 77 84 80
Other comprehensive income / (loss) before reclassification 2 (1) 2 (2)
Amounts reclassified from accumulated other comprehensive income / (loss) to the income statement (3) (3) (5) (5)
Amounts reclassified from accumulated other comprehensive income / (loss) to retained earnings     0  
Equity, ending balance 81 73 81 73
Cash flow hedges        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity, beginning balance (5) (7) (14) (5)
Other comprehensive income / (loss) before reclassification 19 (5) 27 (9)
Amounts reclassified from accumulated other comprehensive income / (loss) to the income statement (1) 4 0 6
Amounts reclassified from accumulated other comprehensive income / (loss) to retained earnings     0  
Equity, ending balance 13 (8) 13 (8)
Currency translation adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Equity, beginning balance (78) (81) (84) (75)
Other comprehensive income / (loss) before reclassification 10 0 14 (6)
Amounts reclassified from accumulated other comprehensive income / (loss) to the income statement 0 0 0 0
Amounts reclassified from accumulated other comprehensive income / (loss) to retained earnings     2  
Equity, ending balance $ (68) $ (81) $ (68) $ (81)