CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)		Dec. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Debt securities available for sale, amortized cost		$ 3,620,000,000	$ 3,460,000,000
Debt securities available for sale, allowance for credit losses		0	0
Debt securities held-to-maturity, fair value		3,644,000,000	3,593,000,000
Debt securities held to maturity, allowance for credit losses		250,000	280,000
Loans held for sale, fair value	[1]	214,000,000	150,000,000
Loans and leases, unearned income	[1]	106,000,000	91,000,000
Loans and leases, unearned income, fair value	[1]	$ 53,000,000	$ 45,000,000
Preferred stock, shares issued (in shares)		0	110,877
Preferred stock, liquidation preference per share (USD per share)		$ 0.01	$ 0.01
Common stock, par value (USD per share)		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)		500,000,000	500,000,000
Common stock, shares issued (in shares)		375,018,433	374,939,537
Treasury stock, shares (in shares)		15,402,776	16,110,120

[1] Amount represents loans for which we have elected the fair value option. See Note 25.