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Stockholders' Equity (Details) - USD ($) shares in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Apr. 29, 2021	Feb. 11, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Increase (decrease) in authorization amount				$ 211,400,000
Treasury stock, acquired (in shares)	8.4	2.6
Payments for repurchase of common stock	$ 299,800,000	$ 187,500,000
Value of treasury stock acquired	299,800,000	187,500,000
Performance-based Restricted Stock Units
Accumulated Other Comprehensive Income (Loss) [Line Items]
Value of treasury stock acquired	13,300,000	$ 11,800,000
February 2016 Program
Accumulated Other Comprehensive Income (Loss) [Line Items]
Remaining shares under share repurchase authorization	$ 113,200,000
February 2016 Program | Subsequent Event
Accumulated Other Comprehensive Income (Loss) [Line Items]
Authorized amount of stock to be repurchased			$ 400,000,000.0

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