Pension Plans and Other Post Employment Benefit Plans Change in Projected Benefit Obligations, Plan Assets and Funded Status (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		$ 12,200	$ 13,400
Trust Agreement [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at beginning of the period		155
Benefit obligation at end of the period		131	155
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at beginning of the period		13,440	13,982
Service Cost		16	18	$ 20
Interest Cost		648	690	505
Plan participants' contributions		2	1
Actuarial (gain) loss		(580)	311
Benefits Paid		(1,241)	(1,304)
Plan amendments		0	0
Net effects of acquisitions / divestitures / other	[1]	0	(257)
Effect of foreign exchange rates		(63)	(1)
Benefit obligation at end of the period		12,222	13,440	13,982
Fair value of plan assets at beginning of period		11,755	12,584
Actual return on plan assets		116	661
Employer contributions		50	52
Plan participants' contributions		2	1
Benefits paid		(1,241)	(1,304)
Net effects of acquisitions / divestitures / other	[1]	0	(257)
Effect of foreign exchange rates		(52)	18
Fair value of plan assets at end of period		10,630	11,755	12,584
Funded (unfunded) status of plan		(1,592)	(1,685)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax		0	0	0
Pension Plan | U.S. Plans with Plan Assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan		(1,268)	(1,336)
Pension Plan | Non-U.S. plans with plan assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan		(41)	(43)
Pension Plan | All other plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan	[2],[3]	(283)	(306)
Other Post Employment Benefits Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at beginning of the period		925	1,021
Service Cost		0	1	1
Interest Cost		42	49	26
Plan participants' contributions		18	20
Actuarial (gain) loss		(51)	(49)
Benefits Paid		(120)	(117)
Plan amendments		(1)	0
Net effects of acquisitions / divestitures / other		0	0
Effect of foreign exchange rates		(1)	0
Benefit obligation at end of the period		812	925	1,021
Fair value of plan assets at beginning of period		0	0
Actual return on plan assets		0	0
Employer contributions		101	97
Plan participants' contributions		18	20
Benefits paid		(120)	(117)
Net effects of acquisitions / divestitures / other		0	0
Effect of foreign exchange rates		1	0
Fair value of plan assets at end of period		0	0	0
Funded (unfunded) status of plan		(812)	(925)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax		0	0	$ 0
Other Post Employment Benefits Plan | U.S. Plans with Plan Assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan		0	0
Other Post Employment Benefits Plan | Non-U.S. plans with plan assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan		0	0
Other Post Employment Benefits Plan | All other plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan	[2],[3]	$ (812)	$ (925)

[1] elates to transfers of certain benefit obligations and related assets associated with the principal U.S. pension plan to an insurance company through the purchase of nonparticipating group annuity contracts.

[2] As of December 31, 2024 and 2023, $131 million and $155 million, respectively, of the benefit obligations are supported by funding under the Trust agreement, defined in the "Trust Assets" section below.

[3] Includes pension plans maintained around the world where funding is not customary.