Leases - Operating Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Lease Expense
Long-term fixed lease	$ 254	$ 255	$ 288
Long-term variable lease	48	32	25
Short-term lease	477	440	477
Total operating lease expense	$ 779	$ 727	$ 790