Postretirement Benefit Plans - Amounts Recognized on our Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	$ 392	$ 246
Accrued expenses and other liabilities & other long-term liabilities	(10)	(11)
Underfunded retirement plans	(79)	(131)
Funded status at end of year	303	104
U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	73	9
Accrued expenses and other liabilities & other long-term liabilities	(5)	(6)
Underfunded retirement plans	(29)	(39)
Funded status at end of year	39	(36)
U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	28	3
Accrued expenses and other liabilities & other long-term liabilities	0	0
Underfunded retirement plans	(3)	(3)
Funded status at end of year	25	0
Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	291	234
Accrued expenses and other liabilities & other long-term liabilities	(5)	(5)
Underfunded retirement plans	(47)	(89)
Funded status at end of year	$ 239	$ 140