Employee Benefit Obligations - AOCI, Obligations exceeding assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Benefit plans with an accumulated benefit obligation in excess of plan assets
Fair value of plan assets	$ 0	$ 0
Defined Benefit Plan, Funding Status [Extensible Enumeration]	us-gaap:UnfundedPlanMember	us-gaap:UnfundedPlanMember
Defined Benefit Pension Plans
Amounts recognized in accumulated other comprehensive (earnings) loss
Net actuarial (loss) gain	$ (535)	$ (689)
Net prior service (cost) credit	(26)	(31)
Tax effect and currency exchange rates	159	183
Accumulated other comprehensive (earnings) loss	(402)	(537)
Benefit plans with an accumulated benefit obligation in excess of plan assets
Projected benefit obligation	1,328	1,491
Accumulated benefit obligation	1,315	1,479
Fair value of plan assets	1,066	1,169
Defined Benefit Pension Plans | U.S.
Amounts recognized in accumulated other comprehensive (earnings) loss
Net actuarial (loss) gain	(118)	(261)
Net prior service (cost) credit	12	12
Tax effect and currency exchange rates	34	73
Accumulated other comprehensive (earnings) loss	(72)	(176)
Benefit plans with an accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	1,143	1,236
Projected benefit obligation	1,153	1,246
Accumulated benefit obligation	1,143	1,236
Fair value of plan assets	1,051	1,106
Defined Benefit Pension Plans | Non-U.S.
Amounts recognized in accumulated other comprehensive (earnings) loss
Net actuarial (loss) gain	(417)	(428)
Net prior service (cost) credit	(38)	(43)
Tax effect and currency exchange rates	125	110
Accumulated other comprehensive (earnings) loss	(330)	(361)
Benefit plans with an accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	1,882	2,189
Projected benefit obligation	175	245
Accumulated benefit obligation	172	243
Fair value of plan assets	$ 15	$ 63