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INVESTMENT SECURITIES (Tables)
 9 Months Ended
Sep. 30, 2025
Investments [Abstract]  
Schedule of Amortized Cost and Fair Value of Investment Securities
The following tables include the amortized cost and fair value of investment securities:

Amortized Cost and Fair Value - Investment Securities
dollars in millions September 30, 2025
Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Investment securities available for sale
U.S. Treasury$13,729 $54 $(2)$13,781 
Government agency53 — (1)52 
Residential mortgage-backed securities17,550 236 (351)17,435 
Commercial mortgage-backed securities3,582 27 (181)3,428 
Corporate bonds256 — (6)250 
Municipal bonds17 — — 17 
Total investment securities available for sale$35,187 $317 $(541)$34,963 
Investment in marketable equity securities$78 $33 $(1)$110 
Investment securities held to maturity
U.S. Treasury$387 $— $(18)$369 
Government agency1,459 — (64)1,395 
Residential mortgage-backed securities4,568 28 (513)4,083 
Commercial mortgage-backed securities3,358 — (625)2,733 
Supranational securities277 — (21)256 
Other2 — — 2 
Total investment securities held to maturity$10,051 $28 $(1,241)$8,838 
Total investment securities$45,316 $378 $(1,783)$43,911 
December 31, 2024
Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Investment securities available for sale
U.S. Treasury$13,897 $33 $(27)$13,903 
Government agency79 — (2)77 
Residential mortgage-backed securities16,161 41 (582)15,620 
Commercial mortgage-backed securities3,869 7 (210)3,666 
Corporate bonds489 — (22)467 
Municipal bonds17 — — 17 
Total investment securities available for sale$34,512 $81 $(843)$33,750 
Investment in marketable equity securities$79 $27 $(5)$101 
Investment securities held to maturity
U.S. Treasury$483 $— $(31)$452 
Government agency1,489 — (115)1,374 
Residential mortgage-backed securities4,558 2 (682)3,878 
Commercial mortgage-backed securities3,407 — (678)2,729 
Supranational securities300 — (33)267 
Other2 — — 2 
Total investment securities held to maturity$10,239 $2 $(1,539)$8,702 
Total investment securities$44,830 $110 $(2,387)$42,553 
Schedule of Investment Securities Maturity Information
The following table provides the amortized cost and fair value by contractual maturity. Expected maturities will differ from contractual maturities on certain securities because borrowers and issuers may have the right to call or prepay obligations with or without prepayment penalties. Residential and commercial mortgage-backed and government agency securities are stated separately as they are not due at a single maturity date.

Maturities - Debt Securities
dollars in millionsSeptember 30, 2025December 31, 2024
Amortized CostFair ValueAmortized CostFair Value
Investment securities available for sale
Non-amortizing securities maturing in:
One year or less$9,276 $9,295 $5,090 $5,086 
After one through five years4,631 4,662 8,945 8,949 
After five through 10 years78 74 346 330 
After 10 years17 17 22 22 
Government agency53 52 79 77 
Residential mortgage-backed securities17,550 17,435 16,161 15,620 
Commercial mortgage-backed securities3,582 3,428 3,869 3,666 
Total investment securities available for sale$35,187 $34,963 $34,512 $33,750 
Investment securities held to maturity
Non-amortizing securities maturing in:
One year or less$505 $500 $429 $419 
After one through five years1,492 1,406 1,299 1,208 
After five through 10 years128 116 546 468 
Residential mortgage-backed securities4,568 4,083 4,558 3,878 
Commercial mortgage-backed securities3,358 2,733 3,407 2,729 
Total investment securities held to maturity$10,051 $8,838 $10,239 $8,702 
Schedule of Interest and Dividends on Investment Securities
The following table presents interest and dividend income on investment securities:

Interest and Dividends on Investment Securities
dollars in millionsThree Months Ended September 30,Nine Months Ended September 30,
2025202420252024
Interest income - taxable investment securities (1)
$432 $357 $1,263 $967 
Interest income - nontaxable investment securities1 — 1 1 
Dividend income - marketable equity securities— 1 2 2 
Interest on investment securities$433 $358 $1,266 $970 
(1) Amount includes interest income on securities purchased under agreements to resell.
Schedule of Realized Losses
The following table presents the gross realized gain and loss on sales of investment securities available for sale, and the net realized gain on sale of marketable equity securities:

Realized Gain (Loss) on Sale of Investment Securities, Net
dollars in millionsThree Months Ended September 30,Nine Months Ended September 30,
2025202420252024
Gross realized gain on sale of investment securities available for sale$— $— $1 $— 
Gross realized loss on sale of investment securities available for sale— — (2)— 
Net realized loss on sale of investment securities available for sale— — (1)— 
Net realized gain on sale of marketable equity securities
— 4 1 4 
Realized gain on sale of investment securities, net
$— $4 $— $4 
Schedule of Unrealized Losses on Available-for-sale Securities
The following table provides information regarding investment securities available for sale with unrealized losses:

Gross Unrealized Losses on Debt Securities Available For Sale
dollars in millionsSeptember 30, 2025
Less than 12 months12 months or moreTotal
Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
Investment securities available for sale
U.S. Treasury$501 $(1)$400 $(1)$901 $(2)
Government agency— — 52 (1)52 (1)
Residential mortgage-backed securities403 (1)3,381 (350)3,784 (351)
Commercial mortgage-backed securities96 — 1,175 (181)1,271 (181)
Corporate bonds1 — 212 (6)213 (6)
Total$1,001 $(2)$5,220 $(539)$6,221 $(541)
December 31, 2024
Less than 12 months12 months or moreTotal
Fair ValueUnrealized LossesFair ValueUnrealized LossesFair ValueUnrealized Losses
Investment securities available for sale
U.S. Treasury$3,791 $(12)$981 $(15)$4,772 $(27)
Government agency— — 77 (2)77 (2)
Residential mortgage-backed securities7,470 (61)3,575 (521)11,045 (582)
Commercial mortgage-backed securities1,183 (8)1,342 (202)2,525 (210)
Corporate bonds16 — 438 (22)454 (22)
Total$12,460 $(81)$6,413 $(762)$18,873 $(843)