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Operating Segments (Tables)
3 Months Ended
Mar. 31, 2023
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
The following table presents results by segment:
Three Months Ended March 31,
(Dollars in millions)
CB&WC&CBIH
OT&C(1)
Total
2023202220232022202320222023202220232022
Net interest income (expense)$1,601 $1,528 $2,308 $1,118 $$$(42)$536 $3,868 $3,183 
Net intersegment interest income (expense)1,139 656 (556)171 13 (596)(829)— — 
Segment net interest income2,740 2,184 1,752 1,289 14 (638)(293)3,868 3,183 
Allocated provision for credit losses274 74 232 (150)— — (4)(19)502 (95)
Segment net interest income after provision2,466 2,110 1,520 1,439 14 (634)(274)3,366 3,278 
Noninterest income873 910 630 656 817 733 (86)(157)2,234 2,142 
Amortization of intangibles69 73 31 33 36 30 — 136 137 
Other noninterest expense1,900 1,812 812 755 648 516 195 454 3,555 3,537 
Income (loss) before income taxes1,370 1,135 1,307 1,307 147 190 (915)(886)1,909 1,746 
Provision (benefit) for income taxes326 274 273 284 36 47 (241)(275)394 330 
Segment net income (loss)$1,044 $861 $1,034 $1,023 $111 $143 $(674)$(611)$1,515 $1,416 
Identifiable assets (period end)$168,701 $159,939 $213,143 $188,806 $7,263 $6,494 $185,247 $188,740 $574,354 $543,979 
(1)Includes financial data from business units below the quantitative and qualitative thresholds requiring disclosure.