v3.24.2
Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Stockholders' equity attributable to parent, beginning balance     $ 9,520  
Stockholders' equity attributable to parent, ending balance $ 9,337   9,337  
Foreign currency translation [Member]        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Stockholders' equity attributable to parent, beginning balance (879) $ (944) (816) $ (987)
Other comprehensive (loss)/income before reclassifications (30) 18 (93) 61
(Income)/loss reclassified from accumulated other comprehensive loss (net of income tax) 0 0 0 0
Net current-period other comprehensive (loss)/income (30) 18 (93) 61
Stockholders' equity attributable to parent, ending balance (909) (926) (909) (926)
Derivative instruments [Member]        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Stockholders' equity attributable to parent, beginning balance [1] 11 11 11 9
Other comprehensive (loss)/income before reclassifications [1] 1 1 1 3
(Income)/loss reclassified from accumulated other comprehensive loss (net of income tax) [1] (1) 0 (1) 0
Net current-period other comprehensive (loss)/income [1] 0 1 0 3
Stockholders' equity attributable to parent, ending balance [1] 11 12 11 12
Defined pension and post-retirement benefit costs [Member]        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Stockholders' equity attributable to parent, beginning balance (2,037) (1,635) (2,051) (1,643)
Other comprehensive (loss)/income before reclassifications 0 1 0 0
(Income)/loss reclassified from accumulated other comprehensive loss (net of income tax) 14 8 28 17
Net current-period other comprehensive (loss)/income 14 9 28 17
Stockholders' equity attributable to parent, ending balance (2,023) (1,626) (2,023) (1,626)
Total [Member]        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Stockholders' equity attributable to parent, beginning balance (2,905) (2,568) (2,856) (2,621)
Other comprehensive (loss)/income before reclassifications (29) 20 (92) 64
(Income)/loss reclassified from accumulated other comprehensive loss (net of income tax) 13 8 27 17
Net current-period other comprehensive (loss)/income (16) 28 (65) 81
Stockholders' equity attributable to parent, ending balance $ (2,921) $ (2,540) $ (2,921) $ (2,540)
[1] Reclassification adjustments from accumulated other comprehensive loss related to derivative instruments are included in Revenue and Salaries and benefits in the accompanying condensed consolidated statements of comprehensive income. See Note 9 — Derivative Financial Instruments for additional details regarding the reclassification adjustments for the derivative settlements.