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Income Taxes Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2024
Income Taxes |  |  |  |
Provision for/(benefit from) income taxes | $ (124) | $ 33 |  |
Effective Income Tax Rate Reconciliation, Percent | 23.00% | 75.10% |  |
Unrecognized tax benefits | $ 952 |  | $ 981 | $ 981
Unrecognized tax benefits that would impact effective tax rate | 871 |  | 882 | 882
Unrecognized tax benefits, interest and penalties accrued | 69 |  | 65 | 65
FY24 Q1 GMPD Goodwill Impairment [Member] |  |  |  |
Income Taxes |  |  |  |
Provision for/(benefit from) income taxes |  |  | $ (102) | $ 45
GMPD |  |  |  |
Income Taxes |  |  |  |
Goodwill impairment |  | $ 585 |  |
Minimum |  |  |  |
Income Taxes |  |  |  |
Estimated range of decrease in unrecognized tax benefits within the next 12 months | 0 |  |  |
Maximum |  |  |  |
Income Taxes |  |  |  |
Estimated range of decrease in unrecognized tax benefits within the next 12 months | $ 20 |  |  |
Federal | Minimum |  |  |  |
Income Taxes |  |  |  |
Open Tax Year | 2015 |  |  |

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