Stockholders' Equity - Components of Accumulated Other Comprehensive Loss (Details) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025 USD ($) plan country	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($) plan country	Sep. 30, 2024 USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 14,082	$ 13,888	$ 13,527	$ 12,278	$ 12,299	$ 12,489	$ 13,527	$ 12,489
Net Change	(20)	160	176	258	(43)	(208)	316	7
Ending balance	$ 14,155	14,082	13,888	13,587	12,278	12,299	$ 14,155	13,587
Number of defined benefit pension plans | plan	2						2
Number of countries with a defined benefit pension plan | country	2						2
Total accumulated other comprehensive loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ (1,399)	(1,559)	(1,735)	(1,541)	(1,498)	(1,290)	$ (1,735)	(1,290)
Net Change	(20)	160	176	258	(43)	(208)	316
Ending balance	(1,419)	$ (1,399)	(1,559)	$ (1,283)	$ (1,541)	$ (1,498)	(1,419)	$ (1,283)
Foreign CTA gain (loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance			(2,360)				(2,360)
Net Change							728
Ending balance	(1,632)						(1,632)
Net investment hedge CTA gain (loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance			579				579
Net Change							(333)
Ending balance	246						246
Unrealized gain (loss) on cash flow hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance			47				47
Net Change							(79)
Ending balance	(32)						(32)
Net actuarial gain (loss) on defined benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance			$ (1)				(1)
Net Change							0
Ending balance	$ (1)						$ (1)