Leasing Arrangements - Supplemental Disclosure for Statement of Cash Flows related to Operating and Finance Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash Flows from Operating Activities
Operating cash flows for operating leases	$ (5,067)	$ (4,929)	$ (4,490)
Operating cash flows for finance leases	(98)	(69)	(36)
Cash Flows from Financing Activities
Financing cash flows for finance leases	(794)	(612)	(449)
Supplemental lease cash flow disclosures
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	4,385	2,634	2,392
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 1,051	$ 968	$ 832