v3.26.1
Loans Receivable Loans Receivable (Summary of Changes in Expected Future Net Cash Flows) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance, beginning of period $ 11,736.1 $ 11,796.0 $ 11,610.2 $ 11,560.2
New Consumer Loan Assignments [1] 1,441.4 1,432.0 [2] 2,997.4 [2] 3,040.0 [2]
Realized Net Cash Flows [3] (1,386.9) (1,346.1) (2,810.7) (2,699.2)
Forecast changes (39.1) (55.8) (48.2) (76.7)
Transfers [4] 2.2 1.6 5.0 3.4
Balance, end of period 11,753.7 11,827.7 11,753.7 11,827.7
Dealer Loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance, beginning of period 8,201.5 8,383.2 8,165.5 8,176.3
New Consumer Loan Assignments [1] 950.8 984.1 [2] 2,034.9 [2] 2,190.8 [2]
Realized Net Cash Flows [3] (961.8) (930.1) (1,952.3) (1,863.8)
Forecast changes (27.1) (39.6) (36.2) (64.2)
Transfers [4] (40.8) (42.1) (89.3) (83.6)
Balance, end of period 8,122.6 8,355.5 8,122.6 8,355.5
Purchased Loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance, beginning of period 3,534.6 3,412.8 3,444.7 3,383.9
New Consumer Loan Assignments [1] 490.6 447.9 [2] 962.5 [2] 849.2 [2]
Realized Net Cash Flows [3] (425.1) (416.0) (858.4) (835.4)
Forecast changes (12.0) (16.2) (12.0) (12.5)
Transfers [4] 43.0 43.7 94.3 87.0
Balance, end of period $ 3,631.1 $ 3,472.2 $ 3,631.1 $ 3,472.2
[1] The Dealer Loans amount represents repayments that we expected to collect at the time of assignment on Consumer Loans assigned under the Portfolio Program, less the related Dealer Holdback payments that we expected to make. The Purchased Loans amount represents repayments that we expected to collect at the time of assignment on Consumer Loans assigned under the Purchase Program.
[2] The Dealer Loans amount represents repayments that we expected to collect at the time of assignment on Consumer Loans assigned under the Portfolio Program, less the related Dealer Holdback payments that we expected to make. The Purchased Loans amount represents repayments that we expected to collect at the time of assignment on Consumer Loans assigned under the Purchase Program.
[3] The Dealer Loans amount represents repayments that we collected on Consumer Loans assigned under the Portfolio Program, less the Dealer Holdback and Accelerated Dealer Holdback payments that we made. The Purchased Loans amount represents repayments that we collected on Consumer Loans assigned under the Purchase Program.
[4] Under the Portfolio Program, certain events may result in Dealers forfeiting their rights to Dealer Holdback. We transfer the Dealer’s outstanding Dealer Loan balance, related allowance for credit losses balance, and related expected future net cash flows to Purchased Loans in the period this forfeiture occurs.