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Other Income, Net - Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 15, 2023 | Jun. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023
Loss Contingencies [Line Items] |  |  |  |
Reversal of previously recorded litigation amount | $ 25 | $ 25 |  | $ 25
Legal fees |  | $ 1 |  | $ 1
Lehman Brothers International (Europe) (“LBIE”) Claims |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, provision |  |  | $ 65 |

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