Debt and Financing Arrangements (Tables)

9 Months Ended

Jan. 31, 2016

Debt Disclosure [Abstract]

Long-term debt

Long-term debt consists of the following:

	January 31, 2016				April 30, 2015
	Principal Outstanding		Carrying Amount (A)		Principal Outstanding		Carrying Amount (A)
1.75% Senior Notes due March 15, 2018	$	500.0	$	497.7	$	500.0	$	496.9
2.50% Senior Notes due March 15, 2020	500.0		495.2		500.0		494.3
3.50% Senior Notes due October 15, 2021	750.0		791.0		750.0		796.0
3.00% Senior Notes due March 15, 2022	400.0		395.8		400.0		395.3
3.50% Senior Notes due March 15, 2025	1,000.0		992.5		1,000.0		991.9
4.25% Senior Notes due March 15, 2035	650.0		642.1		650.0		641.8
4.38% Senior Notes due March 15, 2045	600.0		584.2		600.0		583.8
Term Loan Credit Agreement due March 23, 2020	750.0		747.8		1,550.0		1,544.9
Total long-term debt	$	5,150.0	$	5,146.3	$	5,950.0	$	5,944.9

(A) Represents the carrying amount included in the Condensed Consolidated Balance Sheets, which includes the impact of interest rate swaps, offering discounts, and capitalized debt issuance costs.