Comprehensive Income/(Loss) and Shareholders' Equity - Schedule of Changes in Each Component of Accumulated Other Comprehensive Items (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 46,724	$ 44,032	$ 40,855
Total other comprehensive income/(loss)	520	(133)	(777)
Ending Balance	49,551	46,724	44,032
Currency translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,941)
Other comprehensive income/(loss) before reclassifications	525
Amounts reclassified from accumulated other comprehensive income/(loss)	7
Total other comprehensive income/(loss)	532
Ending Balance	(2,409)	(2,941)
Unrealized gains/(losses) on hedging instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(28)
Other comprehensive income/(loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income/(loss)	3
Total other comprehensive income/(loss)	3
Ending Balance	(25)	(28)
Pension and other postretirement benefit liability adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(255)
Other comprehensive income/(loss) before reclassifications	(12)
Amounts reclassified from accumulated other comprehensive income/(loss)	4
Total other comprehensive income/(loss)	(8)
Ending Balance	(263)	(255)
Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(3,224)	(3,099)	(2,329)
Other comprehensive income/(loss) before reclassifications	513
Amounts reclassified from accumulated other comprehensive income/(loss)	14
Total other comprehensive income/(loss)	527
Ending Balance	$ (2,697)	$ (3,224)	$ (3,099)