Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Income Taxes

Schedule of provision for income taxes and effective tax rate

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Provision for income taxes	$	(94.5)		$	(63.6)		$	(180.9)		$	(134.6)
Effective tax rate		24.7	%		20.1	%		24.5	%		21.9	%