Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Derivative financial instruments, tax expense (benefit)	$ 2.3	$ 5.3	$ 9.3	$ 8.1
Foreign currency translation adjustment tax expense (benefit)			$ (4.7)
Accounting Standards Update [Extensible List]				us-gaap:AccountingStandardsUpdate201802Member