Leases - Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 51	$ 44	$ 38
Financing cash flows from finance leases	2	3	15
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 73	$ 42	$ 22