Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Carrying Amounts and Estimated Fair Values of Other Financial Instruments

The following table presents the carrying amounts and estimated fair values of the Company’s other financial instruments at December 31, 2017 and December 31, 2016:

		December 31, 2017						December 31, 2016
	Input	Carrying			Fair			Carrying		Fair
	Level	Amount			Value			Amount		Value
Financial Assets:
Cash equivalents	Level 1	$	95.8		$	95.8		$	72.4	$	72.4
Financial Liabilities:
Short-term borrowings	Level 2		270.9			270.9			426.8		426.8
Floating Rate Senior notes due January 25, 2019	Level 2		300.0			299.9			0.0		0.0
2.45% Senior notes due December 15, 2019	Level 2		299.9			300.9			299.9		302.0
2.45% Senior notes due August 1, 2022	Level 2		299.7			296.1			0.0		0.0
2.875% Senior notes due October 1, 2022	Level 2		399.8			400.2			399.8		396.9
3.15% Senior notes due August 1, 2027	Level 2		424.6			417.8			0.0		0.0
3.95% Senior notes due August 1, 2047	Level 2		397.1			397.4			0.0		0.0
Contingent Consideration	Level 3		23.2			23.2			0.0		0.0
Fair value adjustment asset (liability) related to hedged fixed rate debt instrument	Level 2		(2.2	)		(2.2	)		0.2		0.2