Leases (Future Minimum Maturities of Lease Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Operating Leases
2025	$ 4,789
2026	4,166
2027	3,527
2028	2,885
2029	2,130
Thereafter	7,978
Total lease payments	25,475
Less: Imputed interest	(4,551)
Total	20,924	$ 21,092
Finance Leases
2025	293
2026	285
2027	284
2028	286
2029	294
Thereafter	416
Total lease payments	1,858
Less: Imputed interest	(442)
Total	$ 1,416	$ 1,838