CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Receivables, less allowance for doubtful accounts	$ 113.0	$ 102.0
Accumulated depreciation and amortization	1,803.0	1,576.0
Other intangible assets, accumulated amortization	2,483.0	2,179.0
Investments in unconsolidated subsidiaries	$ 930.0	$ 997.0
Class A common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Class A common stock, shares authorized (in shares)	525,000,000	525,000,000
Class A common stock, shares issued (in shares)	306,010,388	304,889,140
Class A common stock, shares outstanding (in shares)	306,010,388	304,889,140