Leases - Lease Costs and Supplemental Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Operating lease cost	$ 218	$ 169
Short-term lease cost	26	22
Variable lease cost	28	20
Total operating lease cost	272	211
Amortization of leases	7	7
Interest expense on lease liabilities	1	1
Total finance lease cost	8	8
Total operating and finance lease cost	280	219
Leased assets obtained in exchange for new operating lease liabilities	73	154
Leased assets obtained in exchange for new finance lease liabilities	$ 3	$ 1