Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Consolidated Balance Sheets
Allowance for doubtful accounts	$ 99.3	$ 66.5
Accumulated depreciation	$ 3,096.0	$ 2,464.3
Class A Common Stock, par value (in dollars per share)	$ 0.001	$ 0.001
Class A Common Stock, shares issued	1,228,900,000	1,212,900,000
Class A Common Stock, shares outstanding	1,226,600,000	1,209,300,000
Class A Common Stock, shares authorized	5,000,000,000	2,000,000,000
Treasury stock, shares	2,400,000	3,600,000