Leasing Arrangements - Supplemental Disclosure for Statement of Cash Flows related to Operating and Finance Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash flows for operating leases	$ (4,490)	$ (4,658)	$ (4,813)
Operating cash flows for finance leases	(36)	(34)	(39)
Financing cash flows for finance leases	(449)	(394)	(394)
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	2,392	9,778	3,800
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 832	$ 461	$ 562