Income Taxes - (Provision)/Benefit for Income Taxes (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	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