Employee Benefit Plans (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Defined Benefit Plan, Amounts Recognized in Balance Sheet
Accrued expenses		$ (35)		$ (41)
Other long-term liabilities		(448)		(601)
Pension Plans [Member]
Changes in benefit obligation
Benefit obligation as of beginning of year		3,463	[1]	3,625
Service cost		152		161		$ 140
Interest cost		85		73		85
Participant contributions		0		0
Benefits paid		(366)		(284)
Actuarial gain		(882)		(111)
Foreign currency exchange rate changes		(39)		(1)
Benefit obligation as of end of year		2,413	[1]	3,463	[1]	3,625
Changes in plan assets
Fair value of plan assets as of beginning of year	[1]	3,303		3,067
Actual return on plan assets	[1]	(532)		389
Company contributions	[1]	120		135
Participant contributions	[1]	0		0
Benefits paid	[1]	(366)		(284)
Foreign currency exchange rate changes	[1]	(40)		(4)
Fair value of plan assets as of end of year	[1]	2,485		3,303		$ 3,067
Reconciliation of funded status:
Funded status as of end of year	[1]	72		(160)
Accumulated benefit obligation		$ 2,271		$ 3,238
Actuarial Gain (Loss), Discount Rates (Textual)
Discount rate		5.19%		2.93%		2.62%
Defined Benefit Plan, Amounts Recognized in Balance Sheet
Deferred charges and other assets, net		$ 297		$ 135
Accrued expenses		(14)		(19)
Other long-term liabilities		(211)		(276)
Amounts recognized in balance sheet for defined benefit plans		72		(160)
Other Postretirement Benefit Plans [Member]
Changes in benefit obligation
Benefit obligation as of beginning of year		347	[1]	358
Service cost		6		7		$ 6
Interest cost		8		7		9
Participant contributions		13		13
Benefits paid		(29)		(29)
Actuarial gain		(86)		(9)
Foreign currency exchange rate changes		(1)		0
Benefit obligation as of end of year		258	[1]	347	[1]	358
Changes in plan assets
Fair value of plan assets as of beginning of year	[1]	0		0
Actual return on plan assets	[1]	0		0
Company contributions	[1]	16		16
Participant contributions	[1]	13		13
Benefits paid	[1]	(29)		(29)
Foreign currency exchange rate changes	[1]	0		0
Fair value of plan assets as of end of year	[1]	0		0		$ 0
Reconciliation of funded status:
Funded status as of end of year	[1]	$ (258)		$ (347)
Actuarial Gain (Loss), Discount Rates (Textual)
Discount rate		5.20%		2.96%
Defined Benefit Plan, Amounts Recognized in Balance Sheet
Deferred charges and other assets, net		$ 0		$ 0
Accrued expenses		(21)		(22)
Other long-term liabilities		(237)		(325)
Amounts recognized in balance sheet for defined benefit plans		$ (258)		$ (347)

[1] Plan assets include only the assets associated with pension plans subject to legal minimum funding standards. Plan assets associated with U.S. nonqualified pension plans are not included here because they are not protected from our creditors and therefore cannot be reflected as a reduction from our obligations under the pension plans. As a result, the reconciliation of funded status does not reflect the effect of plan assets that exist for all of our defined benefit plans. See Note 18 for the assets associated with certain U.S. nonqualified pension plans.