Segment Data - Schedule of Segment Data (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenues from services	$ 4,752.3	$ 5,143.3
Franchise revenue	250.2	265.2
Franchise fees
Segment Reporting Information [Line Items]
Revenues from services	3.9	3.6
Americas
Segment Reporting Information [Line Items]
Revenues from services	1,130.2	1,251.2
Americas | United States
Segment Reporting Information [Line Items]
Revenues from services	770.0	889.4
Americas | United States | Franchise fees
Segment Reporting Information [Line Items]
Revenues from services	3.2		$ 2.9
Franchise revenue	$ 99.3	$ 110.8