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Variable interest entities and asset securitizations - Asset-backed Notes Issued to Investors (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2026 | Dec. 31, 2025
Variable Interest Entity [Line Items] |  |
Asset-Backed Notes to Investors | $ 2,779,000,000 | $ 1,730,000,000
August 2023 | Equipment finance loans and leases |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | 177,000,000 | 244,000,000
Asset-Backed Notes to Investors | $ 78,000,000 | 141,000,000
Weighted-Average Life (In years) | 4 months 24 days |
Weighted-Average Rate | 5.74% |
March 2024 | Automobile loans |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | $ 197,000,000 | 252,000,000
Asset-Backed Notes to Investors | $ 183,000,000 | 239,000,000
Weighted-Average Life (In years) | 1 year |
Weighted-Average Rate | 5.20% |
August 2024 | Equipment finance loans and leases |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | $ 383,000,000 | 483,000,000
Asset-Backed Notes to Investors | $ 315,000,000 | 396,000,000
Weighted-Average Life (In years) | 1 year 1 month 6 days |
Weighted-Average Rate | 4.82% |
February 2025 | Automobile loans |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | $ 424,000,000 | 529,000,000
Asset-Backed Notes to Investors | $ 407,000,000 | 513,000,000
Weighted-Average Life (In years) | 1 year 2 months 12 days |
Weighted-Average Rate | 4.71% |
May 2025 | Equipment finance loans and leases |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | $ 461,000,000 | 546,000,000
Asset-Backed Notes to Investors | $ 373,000,000 | 441,000,000
Weighted-Average Life (In years) | 1 year 6 months |
Weighted-Average Rate | 4.77% |
February 2026 | Recreational finance loans |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | $ 514,000,000 | 0
Asset-Backed Notes to Investors | $ 452,000,000 | 0
Weighted-Average Life (In years) | 4 years 7 months 6 days |
Weighted-Average Rate | 4.35% |
Asset Backed Notes May 2026 | Automobile loans |  |
Variable Interest Entity [Line Items] |  |
Remaining Loan Collateral Balance | $ 976,000,000 | 0
Asset-Backed Notes to Investors | $ 971,000,000 | $ 0
Weighted-Average Life (In years) | 1 year 7 months 6 days |
Weighted-Average Rate | 4.43% |

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