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, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		$ 12,000	$ 12,200
Trust Agreement [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at beginning of the period		131
Benefit obligation at end of the period		112	131
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at beginning of the period		12,222	13,440
Service Cost		13	16	$ 18
Interest Cost		627	648	690
Plan participants' contributions		1	2
Actuarial (gain) loss		383	(580)
Benefits Paid		(1,228)	(1,241)
Plan amendments		1	0
Defined Benefit Plan, Benefit Obligation, Business Combination		1	0
Effect of foreign exchange rates		37	(63)
Benefit obligation at end of the period		12,057	12,222	13,440
Fair value of plan assets at beginning of period		10,630	11,755
Actual return on plan assets		805	116
Employer contributions		40	50
Plan participants' contributions		1	2
Benefits paid		(1,228)	(1,241)
Effect of foreign exchange rates		27	(52)
Fair value of plan assets at end of period		10,275	10,630	11,755
Funded (unfunded) status of plan		(1,782)	(1,592)
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		(1,463)	(1,268)
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		(32)	(41)
Pension Plan | All other plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Funded (unfunded) status of plan	[1],[2]	(287)	(283)
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		812	925
Service Cost		0	0	1
Interest Cost		40	42	49
Plan participants' contributions		16	18
Actuarial (gain) loss		15	(51)
Benefits Paid		(112)	(120)
Plan amendments		0	(1)
Defined Benefit Plan, Benefit Obligation, Business Combination		0	0
Effect of foreign exchange rates		1	(1)
Benefit obligation at end of the period		772	812	925
Fair value of plan assets at beginning of period		0	0
Actual return on plan assets		0	0
Employer contributions		96	101
Plan participants' contributions		16	18
Benefits paid		(112)	(120)
Effect of foreign exchange rates		0	1
Fair value of plan assets at end of period		0	0	$ 0
Funded (unfunded) status of plan		(772)	(812)
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	[1],[2]	$ (772)	$ (812)

[1] As of December 31, 2025 and 2024, $112 million and $131 million, respectively, of the benefit obligations are supported by funding under the Trust agreement, defined in the "Trust Assets" section below.

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