Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating cash flows for operating leases	$ 346	$ 360
Operating cash flows for finance leases	11	12
Financing cash flows for finance leases	84	38
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	381	380
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 70	$ 28