Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
GILTI, percent	0.10%	0.20%	0.30%
Undistributed indefinitely reinvested earnings of certain foreign subsidiaries	$ 5,500
Unrecognized tax benefits	252	$ 308	$ 149	$ 108
Unrecognized tax benefits that would impact effective tax rate	243	294	140
Maximum estimated income tax expense change in unrecognized tax benefit in the next 12 months	71
Interest expense for tax examination	6	6	5
Interest accrued for tax examination	$ 9	$ 14	$ 10