v3.26.1
LOANS AND LEASES - Schedule of Origination Year (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year $ 1,757.0   $ 6,061.0
Fiscal year before current fiscal year 5,808.0   4,655.0
Two years before current fiscal year 4,372.0   4,242.0
Three years before current fiscal year 4,025.0   4,585.0
Four years before current fiscal year 4,400.0   4,232.0
Prior 11,078.0   7,357.0
Revolving Loans Amortized Cost Basis 3,672.0   3,645.0
Total loans and leases 35,112.0 [1] $ 34,235.0 34,777.0 [1]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.7
Fiscal year before current fiscal year, charge-off 0.4   3.0
Two years before current fiscal year, charge-off 0.9   3.1
Three years before current fiscal year, charge-off 5.9   11.8
Four years before current fiscal year, charge-off 0.8   13.0
Prior, charge-off 14.9   53.1
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 22.9   84.7
Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 34,851.0   34,529.0
Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 261.0   248.0
Total commercial loans and leases      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 1,125.0   3,552.0
Fiscal year before current fiscal year 3,346.0   2,625.0
Two years before current fiscal year 2,488.0   2,729.0
Three years before current fiscal year 2,591.0   2,487.0
Four years before current fiscal year 2,357.0   2,231.0
Prior 6,806.0   4,952.0
Revolving Loans Amortized Cost Basis 2,348.0   2,348.0
Total loans and leases 21,061.0   20,924.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Total loans and leases, charge-off 20.6 13.1  
Total commercial loans and leases | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 20,894.0   20,784.0
Total commercial loans and leases | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 167.0   140.0
Total commercial loans and leases | Commercial real estate      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 277.0   1,444.0
Fiscal year before current fiscal year 1,447.0   1,364.0
Two years before current fiscal year 1,338.0   1,682.0
Three years before current fiscal year 1,650.0   1,781.0
Four years before current fiscal year 1,705.0   1,817.0
Prior 5,515.0   3,979.0
Revolving Loans Amortized Cost Basis 232.0   207.0
Total loans and leases 12,164.0   12,274.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.0
Fiscal year before current fiscal year, charge-off 0.0   0.0
Two years before current fiscal year, charge-off 0.0   0.4
Three years before current fiscal year, charge-off 0.0   5.4
Four years before current fiscal year, charge-off 0.2   3.9
Prior, charge-off 8.1   20.3
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 8.3 7.6 30.0
Total commercial loans and leases | Commercial real estate | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 12,084.0   12,219.0
Total commercial loans and leases | Commercial real estate | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 80.0   55.0
Total commercial loans and leases | Commercial real estate | Pass      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 277.0   1,438.0
Fiscal year before current fiscal year 1,442.0   1,336.0
Two years before current fiscal year 1,298.0   1,654.0
Three years before current fiscal year 1,579.0   1,587.0
Four years before current fiscal year 1,458.0   1,686.0
Prior 5,027.0   3,637.0
Revolving Loans Amortized Cost Basis 221.0   195.0
Total loans and leases 11,302.0   11,533.0
Total commercial loans and leases | Commercial real estate | Special Mention      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   5.0
Fiscal year before current fiscal year 3.0   17.0
Two years before current fiscal year 27.0   18.0
Three years before current fiscal year 29.0   135.0
Four years before current fiscal year 191.0   94.0
Prior 271.0   147.0
Revolving Loans Amortized Cost Basis 3.0   6.0
Total loans and leases 524.0   422.0
Total commercial loans and leases | Commercial real estate | Substandard      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   1.0
Fiscal year before current fiscal year 2.0   11.0
Two years before current fiscal year 13.0   10.0
Three years before current fiscal year 42.0   59.0
Four years before current fiscal year 56.0   37.0
Prior 217.0   195.0
Revolving Loans Amortized Cost Basis 8.0   6.0
Total loans and leases 338.0   319.0
Total commercial loans and leases | Commercial and industrial      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 728.0   1,836.0
Fiscal year before current fiscal year 1,725.0   1,036.0
Two years before current fiscal year 936.0   844.0
Three years before current fiscal year 748.0   632.0
Four years before current fiscal year 582.0   370.0
Prior 1,212.0   929.0
Revolving Loans Amortized Cost Basis 2,101.0   2,071.0
Total loans and leases 8,032.0   7,718.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.1
Fiscal year before current fiscal year, charge-off 0.0   1.5
Two years before current fiscal year, charge-off 0.3   1.0
Three years before current fiscal year, charge-off 5.7   3.5
Four years before current fiscal year, charge-off 0.2   7.0
Prior, charge-off 3.0   24.8
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 9.2 4.3 37.9
Total commercial loans and leases | Commercial and industrial | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 7,986.0   7,673.0
Total commercial loans and leases | Commercial and industrial | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 46.0   45.0
Total commercial loans and leases | Commercial and industrial | Pass      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 726.0   1,799.0
Fiscal year before current fiscal year 1,713.0   1,011.0
Two years before current fiscal year 906.0   787.0
Three years before current fiscal year 697.0   616.0
Four years before current fiscal year 567.0   360.0
Prior 1,110.0   835.0
Revolving Loans Amortized Cost Basis 1,859.0   1,835.0
Total loans and leases 7,578.0   7,243.0
Total commercial loans and leases | Commercial and industrial | Special Mention      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   35.0
Fiscal year before current fiscal year 8.0   11.0
Two years before current fiscal year 13.0   12.0
Three years before current fiscal year 12.0   5.0
Four years before current fiscal year 5.0   3.0
Prior 50.0   72.0
Revolving Loans Amortized Cost Basis 164.0   148.0
Total loans and leases 252.0   286.0
Total commercial loans and leases | Commercial and industrial | Substandard      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 2.0   2.0
Fiscal year before current fiscal year 4.0   14.0
Two years before current fiscal year 17.0   45.0
Three years before current fiscal year 39.0   11.0
Four years before current fiscal year 10.0   7.0
Prior 52.0   22.0
Revolving Loans Amortized Cost Basis 78.0   88.0
Total loans and leases 202.0   189.0
Total commercial loans and leases | Commercial leases      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 113.0   263.0
Fiscal year before current fiscal year 174.0   225.0
Two years before current fiscal year 214.0   145.0
Three years before current fiscal year 132.0   74.0
Four years before current fiscal year 70.0   44.0
Prior 75.0   40.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 778.0   791.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.0
Fiscal year before current fiscal year, charge-off 0.0   0.0
Two years before current fiscal year, charge-off 0.0   0.0
Three years before current fiscal year, charge-off 0.0   0.0
Four years before current fiscal year, charge-off 0.0   0.0
Prior, charge-off 2.0   0.2
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 2.0 0.1 0.2
Total commercial loans and leases | Commercial leases | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 774.0   788.0
Total commercial loans and leases | Commercial leases | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 4.0   3.0
Total commercial loans and leases | Commercial leases | Pass      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 112.0   262.0
Fiscal year before current fiscal year 174.0   222.0
Two years before current fiscal year 209.0   140.0
Three years before current fiscal year 123.0   73.0
Four years before current fiscal year 69.0   41.0
Prior 71.0   37.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 758.0   775.0
Total commercial loans and leases | Commercial leases | Special Mention      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 1.0   1.0
Fiscal year before current fiscal year 0.0   3.0
Two years before current fiscal year 3.0   1.0
Three years before current fiscal year 1.0   0.0
Four years before current fiscal year 0.0   1.0
Prior 3.0   3.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 8.0   9.0
Total commercial loans and leases | Commercial leases | Substandard      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   0.0
Fiscal year before current fiscal year 0.0   0.0
Two years before current fiscal year 2.0   4.0
Three years before current fiscal year 8.0   1.0
Four years before current fiscal year 1.0   2.0
Prior 1.0   0.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 12.0   7.0
Total commercial loans and leases | Other      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 7.0   9.0
Fiscal year before current fiscal year 0.0   0.0
Two years before current fiscal year 0.0   58.0
Three years before current fiscal year 61.0   0.0
Four years before current fiscal year 0.0   0.0
Prior 4.0   4.0
Revolving Loans Amortized Cost Basis 15.0   70.0
Total loans and leases 87.0   141.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.0
Fiscal year before current fiscal year, charge-off 0.0   0.0
Two years before current fiscal year, charge-off 0.0   0.0
Three years before current fiscal year, charge-off 0.0   0.0
Four years before current fiscal year, charge-off 0.0   0.0
Prior, charge-off 1.1   4.7
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 1.1 1.1 4.7
Total commercial loans and leases | Other | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 50.0   104.0
Total commercial loans and leases | Other | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 37.0   37.0
Total commercial loans and leases | Other | Pass      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 7.0   9.0
Fiscal year before current fiscal year 0.0   0.0
Two years before current fiscal year 0.0   58.0
Three years before current fiscal year 61.0   0.0
Four years before current fiscal year 0.0   0.0
Prior 4.0   4.0
Revolving Loans Amortized Cost Basis 15.0   70.0
Total loans and leases 87.0   141.0
Total consumer loans      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 632.0   2,509.0
Fiscal year before current fiscal year 2,462.0   2,030.0
Two years before current fiscal year 1,884.0   1,513.0
Three years before current fiscal year 1,434.0   2,098.0
Four years before current fiscal year 2,043.0   2,001.0
Prior 4,272.0   2,405.0
Revolving Loans Amortized Cost Basis 1,324.0   1,297.0
Total loans and leases 14,051.0   13,853.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Total loans and leases, charge-off 2.3 3.3  
Total consumer loans | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 13,957.0   13,745.0
Total consumer loans | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans and leases 94.0   108.0
Total consumer loans | Direct installment      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 95.0   446.0
Fiscal year before current fiscal year 429.0   274.0
Two years before current fiscal year 256.0   219.0
Three years before current fiscal year 206.0   538.0
Four years before current fiscal year 519.0   594.0
Prior 1,150.0   607.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 2,655.0   2,678.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.1
Fiscal year before current fiscal year, charge-off 0.1   0.2
Two years before current fiscal year, charge-off 0.0   0.2
Three years before current fiscal year, charge-off 0.1   0.2
Four years before current fiscal year, charge-off 0.0   0.0
Prior, charge-off 0.0   0.2
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 0.2 0.4 0.9
Total consumer loans | Direct installment | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 95.0   446.0
Fiscal year before current fiscal year 428.0   273.0
Two years before current fiscal year 256.0   218.0
Three years before current fiscal year 205.0   535.0
Four years before current fiscal year 517.0   592.0
Prior 1,143.0   601.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 2,644.0   2,665.0
Total consumer loans | Direct installment | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   0.0
Fiscal year before current fiscal year 1.0   1.0
Two years before current fiscal year 0.0   1.0
Three years before current fiscal year 1.0   3.0
Four years before current fiscal year 2.0   2.0
Prior 7.0   6.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 11.0   13.0
Total consumer loans | Residential mortgages      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 423.0   1,747.0
Fiscal year before current fiscal year 1,736.0   1,475.0
Two years before current fiscal year 1,377.0   1,256.0
Three years before current fiscal year 1,194.0   1,475.0
Four years before current fiscal year 1,445.0   1,322.0
Prior 2,863.0   1,607.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 9,038.0   8,882.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.1
Fiscal year before current fiscal year, charge-off 0.0   0.3
Two years before current fiscal year, charge-off 0.2   0.5
Three years before current fiscal year, charge-off 0.0   0.1
Four years before current fiscal year, charge-off 0.0   0.1
Prior, charge-off 0.2   1.3
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 0.4 0.4 2.4
Total consumer loans | Residential mortgages | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 423.0   1,741.0
Fiscal year before current fiscal year 1,729.0   1,464.0
Two years before current fiscal year 1,366.0   1,245.0
Three years before current fiscal year 1,185.0   1,468.0
Four years before current fiscal year 1,437.0   1,317.0
Prior 2,837.0   1,579.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 8,977.0   8,814.0
Total consumer loans | Residential mortgages | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   6.0
Fiscal year before current fiscal year 7.0   11.0
Two years before current fiscal year 11.0   11.0
Three years before current fiscal year 9.0   7.0
Four years before current fiscal year 8.0   5.0
Prior 26.0   28.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 61.0   68.0
Total consumer loans | Indirect installment      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 114.0   312.0
Fiscal year before current fiscal year 293.0   275.0
Two years before current fiscal year 246.0   18.0
Three years before current fiscal year 16.0   45.0
Four years before current fiscal year 40.0   73.0
Prior 96.0   44.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 805.0   767.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.4
Fiscal year before current fiscal year, charge-off 0.3   1.0
Two years before current fiscal year, charge-off 0.4   0.9
Three years before current fiscal year, charge-off 0.1   2.5
Four years before current fiscal year, charge-off 0.3   2.0
Prior, charge-off 0.4   0.8
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 1.5 2.2 7.6
Total consumer loans | Indirect installment | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 114.0   311.0
Fiscal year before current fiscal year 292.0   272.0
Two years before current fiscal year 244.0   16.0
Three years before current fiscal year 15.0   41.0
Four years before current fiscal year 37.0   69.0
Prior 92.0   43.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 794.0   752.0
Total consumer loans | Indirect installment | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   1.0
Fiscal year before current fiscal year 1.0   3.0
Two years before current fiscal year 2.0   2.0
Three years before current fiscal year 1.0   4.0
Four years before current fiscal year 3.0   4.0
Prior 4.0   1.0
Revolving Loans Amortized Cost Basis 0.0   0.0
Total loans and leases 11.0   15.0
Total consumer loans | Consumer lines of credit      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   4.0
Fiscal year before current fiscal year 4.0   6.0
Two years before current fiscal year 5.0   20.0
Three years before current fiscal year 18.0   40.0
Four years before current fiscal year 39.0   12.0
Prior 163.0   147.0
Revolving Loans Amortized Cost Basis 1,324.0   1,297.0
Total loans and leases 1,553.0   1,526.0
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]      
Current fiscal year, charge-off 0.0   0.0
Fiscal year before current fiscal year, charge-off 0.0   0.0
Two years before current fiscal year, charge-off 0.0   0.1
Three years before current fiscal year, charge-off 0.0   0.1
Four years before current fiscal year, charge-off 0.1   0.0
Prior, charge-off 0.1   0.8
Revolving loans amortized cost basis, charge-off 0.0   0.0
Total loans and leases, charge-off 0.2 $ 0.3 1.0
Total consumer loans | Consumer lines of credit | Current      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   4.0
Fiscal year before current fiscal year 4.0   6.0
Two years before current fiscal year 5.0   19.0
Three years before current fiscal year 17.0   39.0
Four years before current fiscal year 38.0   12.0
Prior 156.0   139.0
Revolving Loans Amortized Cost Basis 1,322.0   1,295.0
Total loans and leases 1,542.0   1,514.0
Total consumer loans | Consumer lines of credit | Past due      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Current fiscal year 0.0   0.0
Fiscal year before current fiscal year 0.0   0.0
Two years before current fiscal year 0.0   1.0
Three years before current fiscal year 1.0   1.0
Four years before current fiscal year 1.0   0.0
Prior 7.0   8.0
Revolving Loans Amortized Cost Basis 2.0   2.0
Total loans and leases $ 11.0   $ 12.0
[1] Amount represents loans for which we have elected the fair value option. See Note 19.