Long Term Debt and Financing Arrangements (Tables)

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Schedule of Debt

Long-term debt consists of the following (in millions):

	Maturity	September 30, 2017		December 31, 2016
Senior notes at 5.95%	2018	$	—	$	299.3
Senior notes at 3.625%	2022	297.8		297.5
Senior notes at 3.35%	2026	394.2		393.7
Senior notes at 3.15%	2027	294.7		—
TOTAL LONG-TERM DEBT (a)		$	986.7	$	990.5

^(a) Long-term debt is presented net of debt issuance costs and unamortized discounts.