Other Comprehensive Income (Loss) - Schedule of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2025		Sep. 30, 2024		Sep. 30, 2025	Sep. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total Other comprehensive income (loss), net of tax	$ 32		$ 58		$ 334	$ (141)
Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total Other comprehensive income (loss), net of tax	36	[1]	55	[1]	334	(136)	[2]
Cumulative translation adjustments:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), before tax	17		(10)		228	(175)
Other comprehensive income (loss), pretax	17		(10)		228	(175)
Tax amounts	2		51		101	12
Total Other comprehensive income (loss), net of tax	19		41		329	(163)
Pension and other benefits:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), before tax	13		29		26	43
Other comprehensive income (loss), before reclassifications, pretax	5		22		6	21
Reclassification from AOCI, pretax	8		7		20	22
Other comprehensive income (loss), pretax	13		29		26	43
Tax amounts	(3)		(8)		(6)	(11)
Total Other comprehensive income (loss), net of tax	10		21		20	32
Cash flow hedges:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other comprehensive income (loss), before tax	8		(8)		(19)	(6)
Other comprehensive income (loss), pretax	8		(8)		(19)	(6)
Tax amounts	(1)		1		4	1
Total Other comprehensive income (loss), net of tax	$ 7		$ (7)		$ (15)	$ (5)

[1] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,358 at September 30, 2025 ($3,515 at September 30, 2024) and $3,378 at June 30, 2025 ($3,555 at June 30, 2024), respectively, and unrecognized retirement plan and other retiree benefits costs of $586 at September 30, 2025 ($615 at September 30, 2024) and $595 at June 30, 2025 ($636 at June 30, 2024), respectively.

[2] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,358 at September 30, 2025 ($3,515 at September 30, 2024) and $3,687 at December 31, 2024 ($3,351 at December 31, 2023), respectively, and unrecognized retirement plan and other retiree benefits costs of $586 at September 30, 2025 ($615 at September 30, 2024) and $605 at December 31, 2024 ($647 at December 31, 2023), respectively.