Condensed Consolidated Statement of Equity Statement - USD ($) shares in Millions, $ in Millions	Total	Preferred stock	Common stock	Additional paid-in capital	Accumulated Other Comprehensive Income	Retained earnings	Treasury stock	Parent	Noncontrolling interest	2020 Share Repurchase Program	2020 Share Repurchase Program Common stock	2020 Share Repurchase Program Additional paid-in capital	2020 Share Repurchase Program Retained earnings	2020 Share Repurchase Program Treasury stock	2020 Share Repurchase Program Parent
Beginning balance, shares at Dec. 31, 2020		0.0	176.2				23.8
Beginning balance at Dec. 31, 2020	$ 10,686.1	$ 0.0	$ 0.1	$ 0.0	$ (299.0)	$ 13,976.3	$ (2,977.1)	$ 10,700.3	$ (14.2)
Net income	404.6					410.2		410.2	(5.6)
Other comprehensive income (loss), net of tax	125.4				124.7			124.7	0.7
Capital contribution from noncontrolling interest	0.1								0.1
Repurchase of common stock, at cost, shares										(2.2)				(2.2)
Repurchase of common stock, at cost										$ (600.0)				$ (600.0)	$ (600.0)
Retirement of common stock pursuant to Share Repurchase Programs, at cost, shares											(2.2)			(2.2)
Retirement of common stock pursuant to Share Repurchase Progams, at cost												$ (93.8)	$ (506.2)	$ 600.0
Issuance of common stock under stock option and stock purchase plans, shares			0.1
Issuance of common stock under stock option and stock purchase plans	19.7			19.7				19.7
Issuance of common stock under award plan, shares			0.3
Issuance of common stock under stock award plan	(46.8)					(46.8)		(46.8)
Compensation related to share-based payments	72.6			72.6				72.6
Stockholders' Equity, Other	1.5			1.5				1.5
Ending balance at Mar. 31, 2021	10,663.2	$ 0.0	$ 0.1	0.0	(174.3)	13,833.5	$ (2,977.1)	10,682.2	(19.0)
Ending balance, shares at Mar. 31, 2021		0.0	174.4				23.8
Beginning balance, shares at Dec. 31, 2021		0.0	170.8				23.8
Beginning balance at Dec. 31, 2021	10,959.7	$ 0.0	$ 0.1	68.2	(106.7)	13,911.7	$ (2,977.1)	10,896.2	63.5
Net income	218.5					303.8		303.8	(85.3)
Other comprehensive income (loss), net of tax	(8.5)				(8.5)			(8.5)
Capital contribution from noncontrolling interest	0.2								0.2
Issuance of common stock under stock option and stock purchase plans, shares			0.1
Issuance of common stock under stock option and stock purchase plans	18.9			18.9				18.9
Issuance of common stock under award plan, shares			0.4
Issuance of common stock under stock award plan	(39.7)			(39.7)		0.0		(39.7)
Compensation related to share-based payments	70.4			70.4				70.4
Stockholders' Equity, Other	1.2			1.2				1.2
Ending balance at Mar. 31, 2022	$ 11,220.7	$ 0.0	$ 0.1	$ 119.0	$ (115.2)	$ 14,215.5	$ (2,977.1)	$ 11,242.3	$ (21.6)
Ending balance, shares at Mar. 31, 2022		0.0	171.3				23.8