Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

	*Year Ended*						*Year Ended*
	*December 31, 2023*						*December 31, 2022*
(in millions)	*U.S.*			*Non-U.S.*			*U.S.*			*Non-U.S.*
Change in Benefit Obligation
Projected benefit obligation at beginning of period	$	2,482		$	577		$	3,132		$	816
Service cost		13			2			13			3
Interest cost		117			20			80			9
Benefit payments		(283	)		(43	)		(294	)		(44	)
Plan Amendments		29			—			28			—
Actuarial loss (gain)		28			12			(479	)		(165	)
Special termination benefits		—			—			2			—
Currency adjustments		—			20			—			(42	)
Projected benefit obligation at end of period	$	2,386		$	588		$	2,482		$	577

Change in Plan Assets
Fair value of plan assets at beginning of period	$	3,659		$	526		$	4,105		$	626
Actual Return on plan assets		170			25			(152	)		(31	)
Employer contributions		—			6			—			5
Benefit payments		(283	)		(43	)		(294	)		(44	)
Currency adjustments		—			14			—			(30	)
Fair value of plan assets at end of period	$	3,546		$	528		$	3,659		$	526

Over (under) funded status at end of period	$	1,160		$	(60	)	$	1,177		$	(51	)

Accumulated benefit obligation at end of period	$	2,384		$	579		$	2,482		$	568

Schedule of Amounts From Pension Plan Recognized in Balance Sheet [Table Text Block]

	*As of December 31,*
	*2023*					*2022*
(in millions)		U.S.		Non-U.S.			U.S.		Non-U.S.
Pension and other postretirement assets	$	1,160	$	42		$	1,177	$	42
Pension and other postretirement liabilities		—		(102	)		—		(93	)
Net amount recognized	$	1,160	$	(60	)	$	1,177	$	(51	)

Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block]

	*As of December 31,*
	*2023*				*2022*
(in millions)		U.S.		Non-U.S.		U.S.		Non-U.S.
Accumulated benefit obligation	$	—	$	397	$	—	$	201
Fair value of plan assets		—		304		—		116

Schedule of Amounts From Pension Plans Recognized in Other Comprehensive Income [Table Text Block]

	*Year Ended December 31,*
	*2023*						*2022*					*2021*
(in millions)		U.S.			Non-U.S.			U.S.			Non-U.S.		U.S.			Non-U.S.
Newly established (loss) gain	$	(115	)	$	(7	)	$	149		$	120	$	635		$	(4	)
Newly established prior service cost		(29	)		—			(28	)		—		—			—
Amortization of:
Prior service cost (credit)		9			—			(3	)		—		(7	)		—
Net actuarial (gain) loss		(30	)		1			—			10		30			9
Total (loss) income recognized in Other comprehensive (loss) income	$	(165	)	$	(6	)	$	118		$	130	$	658		$	5

Schedule of Assumptions Used to Calculate Pension Plan Net Benefit Costs [Table Text Block]

	*Year Ended December 31,*
	*2023*						*2022*						*2021*
	*U.S.*			*Non-U.S.*			*U.S.*			*Non-U.S.*			*U.S.*			*Non-U.S.*
Effective rate for service cost		5.04	%		3.44	%		3.45	%		1.60	%		2.11	%		1.17	%
Effective rate for interest cost		5.02	%		3.80	%		2.97	%		1.20	%		1.42	%		0.70	%
Salary increase rate		1.00	%		2.71	%		1.00	%		2.39	%		3.50	%		1.56	%
Expected long-term rate of return on plan assets		7.50	%		4.16	%		5.30	%		2.67	%		5.20	%		2.56	%
Interest crediting rate for cash balance plan		3.85	%	NA				2.58	%	NA				1.75	%	NA

Schedule of Fair Value of Plan Assets By Measurement Inputs Disclosure [Table Text Block]

	*U.S.*
	*Quoted Prices*
	*in Active*
	*Markets for*		*Significant*		*Significant*
	*Identical*		*Observable*		*Unobservable*
	*Assets*		*Inputs*		*Inputs*		*Measured at*
(in millions)	*(Level 1)*		*(Level 2)*		*(Level 3)*		*NAV*		*Total*
Cash and cash equivalents ⁽¹⁾	$	164	$	—	$	—	$	—	$	164

Debt Securities:⁽²⁾
Government bonds		—		32		—		—		32
Investment grade bonds		—		682		—		—		682

Real estate		—		—		—		18		18

Other:
Hedge funds		—		—		—		1,552		1,552
Private Equity		—		—		3		1,094		1,097
Derivatives with unrealized gains		1		—		—		—		1
	$	165	$	714	$	3	$	2,664	$	3,546

	*U.S.*
	*Quoted Prices*
	*in Active*
	*Markets for*		*Significant*		*Significant*
	*Identical*		*Observable*		*Unobservable*
	*Assets*		*Inputs*		*Inputs*		*Measured at*
(in millions)	*(Level 1)*		*(Level 2)*		*(Level 3)*		*NAV*		*Total*
Cash and cash equivalents ⁽¹⁾	$	251	$	—	$	—	$	—	$	251

Debt Securities: ⁽²⁾
Government bonds		—		39		—		—		39
Investment grade bonds		—		717		—		—		717

Real estate		—		—		—		29		29

Other:
Hedge funds		—		—		—		1,528		1,528
Private Equity		—		—		3		1,092		1,095
	$	251	$	756	$	3	$	2,649	$	3,659

	*Non - U.S.*
	*Quoted Prices*
	*in Active*
	*Markets for*		*Significant*		*Significant*
	*Identical*		*Observable*		*Unobservable*
	*Assets*		*Inputs*		*Inputs*		*Measured at*
(in millions)	*(Level 1)*		*(Level 2)*		*(Level 3)*		*NAV*		*Total*
Cash and cash equivalents	$	13	$	—	$	—	$	—	$	13

Equity securities		33		—		—		—		33

Debt securities:
Investment grade bonds		35		45		—		—		80
Global high yield & emerging market debt		2		—		—		—		2

Real estate		—		—		—		11		11

Other:
Hedge Funds		—		—		—		29		29
Private equity		—		—		—		42		42
Insurance contracts		—		30		287		—		317
Derivatives with unrealized gains		1		—		—		—		1
	$	83	$	75	$	287	$	82	$	527

	*Non - U.S.*
	*Quoted Prices*
	*in Active*
	*Markets for*		*Significant*		*Significant*
	*Identical*		*Observable*		*Unobservable*
	*Assets*		*Inputs*		*Inputs*		*Measured at*
(in millions)	*(Level 1)*		*(Level 2)*		*(Level 3)*		*NAV*		*Total*
Cash and cash equivalents	$	21	$	—	$	—	$	—	$	21

Equity securities		31		—		—		—		31

Debt securities:
Investment grade bonds		35		45		—		—		80
Global high yield & emerging market debt		2		—		—		—		2

Real estate		—		—		—		11		11

Other:
Hedge Funds		—		—		—		20		20
Private equity		—		—		—		43		43
Insurance contracts		—		29		289		—		318
	$	89	$	74	$	289	$	74	$	526

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

	*U.S.*
			*Net Realized and Unrealized Gains*
					*Relating to*
	*Balance at*		*Relating to*		*Assets*		*Net Purchases,*		*Balance at*
	*January 1,*		*Assets*		*Sold During the*		*Sales and*		*December 31,*
(in millions)	*2023*		*Still Held*		*Period*		*Settlements*		*2023*
Private Equity		3		—		—		—		3
Total	$	3	$	—	$	—	$	—	$	3

	*U.S.*
			*Net Realized and Unrealized Gains*
					*Relating to*
	*Balance at*		*Relating to*		*Assets*		*Net Purchases,*		*Balance at*
	*January 1,*		*Assets*		*Sold During the*		*Sales and*		*December 31,*
(in millions)	*2022*		*Still Held*		*Period*		*Settlements*		*2022*
Private Equity		—		—		—		3		3
Total	$	—	$	—	$	—	$	3	$	3

	*U.S.*
			*Net Realized and Unrealized Gains*
						*Relating to*
	*Balance at*		*Relating to*			*Assets*		*Net Purchases,*		*Balance at*
	*January 1,*		*Assets*			*Sold During the*		*Sales and*		*December 31,*
(in millions)	*2021*		*Still Held*			*Period*		*Settlements*		*2021*
Private Equity		5		(5	)		—		—		—
Total	$	5	$	(5	)	$	—	$	—	$	—

	*Non - U.S.*
			*Net Realized and Unrealized Gains*
						*Relating to*
	*Balance at*		*Relating to*			*Assets*		*Net Purchases,*		*Balance at*
	*January 1,*		*Assets*			*Sold During the*		*Sales and*		*December 31,*
(in millions)		2023		Still Held			Period		Settlements		2023
Insurance Contracts		289		(2	)		—		—		287
Total	$	289	$	(2	)	$	—	$	—	$	287

	*Non - U.S.*
			*Net Realized and Unrealized Gains*
						*Relating to*
	*Balance at*		*Relating to*			*Assets*		*Net Purchases,*		*Balance at*
	*January 1,*		*Assets*			*Sold During the*		*Sales and*		*December 31,*
(in millions)		2022		Still Held			Period		Settlements		2022
Insurance Contracts		342		(53	)		—		—		289
Total	$	342	$	(53	)	$	—	$	—	$	289

	*Non - U.S.*
			*Net Realized and Unrealized Gains*
						*Relating to*
	*Balance at*		*Relating to*			*Assets*		*Net Purchases,*		*Balance at*
	*January 1,*		*Assets*			*Sold During the*		*Sales and*		*December 31,*
(in millions)		2021		Still Held			Period		Settlements		2021
Insurance Contracts		291		(37	)		—		88		342
Total	$	291	$	(37	)	$	—	$	88	$	342

Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]

			*Redemption*	*Redemption*
(in millions)	*Net Asset Value*		*Frequency*	*Notice Period*
Multi-strategy hedge funds	$	509	Quarterly	45-90 days
Relative value hedge funds		342	Bi-monthly, Quarterly	6-120 days
Directional hedge funds		143	Monthly	5 days
Equity long/short hedge funds		264	Monthly, Quarterly	45-90 days
Sector specialist hedge funds		120	Quarterly, Semi-Annually	60-90 days
Long-biased hedge funds		160	Quarterly, Annually	60-90 days
Event driven hedge funds		14	Quarterly	90 days
	$	1,552

			*Redemption*	*Redemption*
(in millions)	*Net Asset Value*		*Frequency*	*Notice Period*
Multi-strategy hedge funds	$	495	Quarterly	45-90 days
Relative value hedge funds		331	Bi-monthly, Quarterly	6-120 days
Directional hedge funds		167	Monthly	5 days
Equity long/short hedge funds		227	Quarterly	45-90 days
Sector specialist hedge funds		135	Quarterly, Semi-Annually	60-90 days
Long-biased hedge funds		159	Quarterly, Annually	60-90 days
Event driven hedge funds		14	Quarterly	90 days
	$	1,528