CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND NONCONTROLLING INTERESTS - USD ($) $ in Millions	Total	Common stock Common Class A	Common stock Common Class B	Common stock Class A exchangeable shares	Common stock Class B exchangeable shares	Paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Common stock held in treasury, Class B	Noncontrolling interests
Beginning balance at Dec. 31, 2019	$ 13,673.1	$ 0.0	$ 2.1	$ 102.5	$ 557.8	$ 6,773.6	$ 7,617.0	$ (1,162.2)	$ (471.4)	$ 253.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of shares	0.0			(0.2)	(140.0)	140.2
Shares issued under equity compensation plan	(0.5)					(0.5)
Amortization of share-based compensation	24.2					24.2
Acquisition of business and purchase of noncontrolling interest	(0.2)					0.3				(0.5)
Net income (loss) including noncontrolling interests	(945.7)						(949.0)			3.3
Other comprehensive income (loss), net of tax	(3.4)							(5.6)		2.2
Contributions from noncontrolling interests	16.3									16.3
Distributions and dividends to noncontrolling interests	(18.7)									(18.7)
Dividends declared	(123.8)						(123.8)
Ending balance at Dec. 31, 2020	12,621.3	0.0	2.1	102.3	417.8	6,937.8	6,544.2	(1,167.8)	(471.4)	256.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of shares	0.0			(0.1)	0.0	0.1
Shares issued under equity compensation plan	0.6					0.6
Amortization of share-based compensation	32.1					32.1
Acquisition of business and purchase of noncontrolling interest	(0.2)					0.3				(0.5)
Net income (loss) including noncontrolling interests	1,008.5						1,005.7			2.8
Other comprehensive income (loss), net of tax	161.3							161.8		(0.5)
Contributions from noncontrolling interests	3.2									3.2
Distributions and dividends to noncontrolling interests	(14.3)									(14.3)
Dividends declared	(148.4)						(148.4)
Ending balance at Dec. 31, 2021	13,664.1	0.0	2.1	102.2	417.8	6,970.9	7,401.5	(1,006.0)	(471.4)	247.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exchange of shares	0.0				(4.5)	4.5
Shares issued under equity compensation plan	(2.9)					(2.9)
Amortization of share-based compensation	33.6					33.6
Acquisition of business and purchase of noncontrolling interest	(1.4)					0.3				(1.7)
Net income (loss) including noncontrolling interests	(186.5)						(175.3)			(11.2)
Other comprehensive income (loss), net of tax	(201.9)							(199.5)		(2.4)
Share repurchase program	(51.5)								(51.5)
Contributions from noncontrolling interests	8.1									8.1
Distributions and dividends to noncontrolling interests	(14.3)									(14.3)
Dividends declared	(332.1)						(332.1)
Ending balance at Dec. 31, 2022	$ 12,915.2	$ 0.0	$ 2.1	$ 102.2	$ 413.3	$ 7,006.4	$ 6,894.1	$ (1,205.5)	$ (522.9)	$ 225.5