Leases - Operating and Finance Lease Reconciliation (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating leases, gross lease liabilities	$ 90,777	$ 81,273
Finance leases, gross lease liabilities	14,106	18,019
Gross lease liabilities	104,883	99,292
Imputed interest - operating leases	(15,138)	(12,233)
Imputed interest - finance leases	(1,997)	(2,236)
Imputed interest	(17,135)	(14,469)
Present value of operating leases	75,639	69,040
Present value of finance leases	12,109	15,783
Present value of lease liabilities	87,748	84,823
Current portion of operating leases	(8,419)	(7,458)
Current portion of finance leases	(2,032)	(4,397)
Current portion of lease liabilities	(10,451)	(11,855)
Total long-term operating lease liabilities	67,220	61,582
Total long-term finance lease liabilities	10,077	11,386
Long-term lease liabilities	$ 77,297	$ 72,968
Operating lease liabilities, current, location	Accrued expenses and other	Accrued expenses and other
Finance lease liabilities, current, location	Accrued expenses and other	Accrued expenses and other
Operating lease liabilities, long-term, location	Long-term lease liabilities	Long-term lease liabilities
Finance lease liabilities, long-term, location	Long-term lease liabilities	Long-term lease liabilities