Long-Term Debt - Schedule of Aggregate Maturities of Long-Term Debt Obligations (Details) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023
Debt Instrument
2025		$ 1,506
2026		2,429
2027		1,833
2028		2,621
2029		1,328
Thereafter		4,620
Total	[1]	14,337	$ 16,380
Parent Company
Debt Instrument
2025		750
2026		0
2027		1,220
2028		2,034
2029		1,246
Thereafter		4,271
Total		9,521	$ 10,108
Subsidiaries
Debt Instrument
2025		756
2026		2,429
2027		613
2028		587
2029		82
Thereafter		349
Total		$ 4,816

[1] Includes $51 and $55 of other short-term investments, $1,000 and $1,573 of portfolio loans and leases, $(19) and $(28) of ALLL, $5 and $10 of other assets, $12 and $14 of other liabilities and $889 and $1,409 of long-term debt from consolidated VIEs that are included in their respective captions above at December 31, 2024 and 2023, respectively. For further information, refer to Note 12.