Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Cash Payments:
Interest	$ 3,795	$ 2,554
Income taxes	126	496
Transfers:
Portfolio loans and leases to loans and leases held for sale	333	281
Loans and leases held for sale to portfolio loans and leases	3	5
Portfolio loans and leases to OREO	16	9
Bank premises and equipment to OREO	7	29
Available-for-sale debt securities to held-to-maturity securities	11,593	0
Supplemental Disclosures:
Net additions to lease liabilities under operating leases	59	56
Net additions (reductions) to lease liabilities under finance leases	$ 45	$ (6)

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