Debt and Credit Arrangements (Tables)

3 Months Ended

Mar. 31, 2015

Debt and Credit Arrangements [Abstract]

Summary of Carrying Amounts and Fair Values of Long-term Debt

A summary of the carrying amounts and fair values of our long-term debt is listed below.

	Effective Interest Rate	March 31, 2015				December 31, 2014
		Book Value		Fair Value 1		Book Value		Fair Value 1
2.25% Senior Notes due 2017 (less unamortized discount of $0.4)	2.30%	$	299.6	$	303.6	$	299.6	$	301.2
4.00% Senior Notes due 2022 (less unamortized discount of $2.2)	4.13%	247.8		263.2		247.7		255.2
3.75% Senior Notes due 2023 (less unamortized discount of $1.2)	4.32%	498.8		512.1		498.8		499.8
4.20% Senior Notes due 2024 (less unamortized discount of $0.9)	4.24%	499.1		531.5		499.1		509.8
Other notes payable and capitalized leases		77.3		77.3		80.4		80.4
Total long-term debt		1,622.6				1,625.6
Less: current portion		2.0				2.1
Long-term debt, excluding current portion		$	1,620.6			$	1,623.5

1 See Note 11 for information on the fair value measurement of our long-term debt.