Financing Agreements (Tables)

3 Months Ended

Mar. 31, 2015

Debt Disclosure [Abstract]

Components of long-term debt

Long-term debt presented on our consolidated balance sheets as of March 31, 2015 and December 31, 2014 consisted of the following:

	March 31, 2015		December 31, 2014
	(in millions)
Unsecured senior notes:
6.875% due 2018	$	800.0	$	800.0
7.125% due 2020	800.0		800.0
3.450% due 2023	749.4		749.4
5.150% due 2034	746.2		746.2
4.950% due 2043	748.8		748.8
5.375% due 2044	748.1		748.1
	4,592.5		4,592.5
Less: Current portion	—		—
Net long-term debt	$	4,592.5	$	4,592.5