Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
HTM securities, Fair Value	$ 39,611	$ 40,286
Loans Held for Sale, Fair Value	1,105	1,233
Loans Receivable, Fair Value Disclosure	12	13
Other Assets, Fair Value Disclosure	1,977	1,271
Interest-Bearing Deposit, Fair Value	396	192
Short-term borrowings, fair value	2,199	1,896
Other Liabilities, Fair Value Disclosure	$ 1,812	$ 2,286
Common stock, par value (in dollars per share)	$ 5	$ 5