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Stockholders' Equity (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Treasury stock, acquired (in shares)		4.4	0.1	16.6
Value of treasury stock acquired		$ 117.0	$ 5.0	$ 566.2
Performance-based Restricted Stock Units
Accumulated Other Comprehensive Income (Loss) [Line Items]
Value of treasury stock acquired	$ 0.3	$ 0.2	31.0	$ 45.8
February 2016 Program
Accumulated Other Comprehensive Income (Loss) [Line Items]
Remaining shares under share repurchase authorization	$ 774.5		$ 774.5

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