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Income Taxes - (Provision)/Benefit for Income Taxes (Parenthetical) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Effective income tax expense long-term capital gain amount | $ 104.5 | $ 241.2 | $ 251.5
Albertsons Companies, Inc [Member] |  |  |
Effective income tax expense long-term capital gain amount | 26.1 |  |
Equity securities, FV-NI, realized gain (loss) | 288.7 | 241.2 | 251.5
Equity securities, retained on proceeds from stock sales for general corporate purposes | 108.2 |  |
Albertsons Companies, Inc [Member] | Domestic Tax Authority [Member] |  |  |
Effective income tax expense long-term capital gain amount | $ 26.1 | 50.7 | 47.3
Albertsons Companies, Inc [Member] | State and Local Jurisdiction [Member] |  |  |
Effective income tax expense long-term capital gain amount |  | $ 10.2 | $ 9.9

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