Leases - Maturities of Operating and Finance Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finance Leases
2024	$ 143
2025	138
2026	130
2027	127
2028	124
Thereafter	1,446
Total lease payments	2,108
Less: imputed interest	(717)
Total finance lease liabilities	1,391	$ 1,465
Operating Leases
2024	2,716
2025	2,559
2026	2,369
2027	2,181
2028	2,024
Thereafter	11,004
Total lease payments	22,853
Less: imputed interest	(5,078)
Total operating lease liabilities	17,775	$ 18,538
Total
2024	2,859
2025	2,697
2026	2,499
2027	2,308
2028	2,148
Thereafter	12,450
Total lease payments	24,961
Less: imputed interest	(5,795)
Total lease liabilities	19,166
Future noncancelable subleases, future minimum payments	289
Leases, amount due in excess of remaining estimated economic life	$ 2,100

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479773/842-30-50-12

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-Topic 842
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

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