Leases - Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current:
Operating lease liabilities	$ 255	$ 238
Finance lease liabilities	31	22
Noncurrent:
Operating lease liabilities	1,125	1,000
Finance lease liabilities	86	59
Total lease liabilities	$ 1,497	$ 1,319