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v3.25.3

Other Assets - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Goodwill [Line Items] |  |  |  |  |  |
Proportional amortization investments | $ 2,080 | $ 2,131 |  | $ 2,080 |  | $ 2,131
Unfunded commitments for proportional amortization investments | 856 | 1,019 |  | $ 856 |  | 1,019
Unfunded commitments, period to be paid |  |  |  | 5 years |  |
Goodwill impairment | $ 0 |  | $ 0 | $ 305 | $ 0 | 118
Goodwill, transfers |  |  |  | 56 |  |
Corporate and Other |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Goodwill impairment |  |  |  | 305 |  | 118
Goodwill, transfers |  |  |  | 56 |  |
Corporate and Other | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations | Ally Credit Card |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Goodwill impairment |  | $ 118 |  | $ 305 |  | $ 118

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