Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Weighted average remaining lease term
Operating leases	7 years 9 months 18 days	7 years 9 months 18 days
Finance leases	9 years 7 months 6 days	10 years 4 months 24 days
Weighted average discount rate
Operating leases	3.50%	3.40%
Finance leases	2.90%	2.80%
Operating leases:
Operating lease assets	$ 14,255	$ 13,588
Accrued expenses and other liabilities	3,007	2,887
Operating lease liabilities	11,952	11,691
Total operating lease liabilities	14,959	14,578
Finance Leases:
Property and equipment, at cost	5,410	4,622
Accumulated depreciation	(2,209)	(2,037)
Property and equipment, net	3,201	2,585
Accrued expenses and other liabilities	100	235
Other long-term liabilities	2,002	1,442
Total finance lease liabilities	$ 2,102	$ 1,677
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Operating lease liabilities	Operating lease liabilities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities