Debt and Financing Arrangements (Tables)

6 Months Ended

Oct. 31, 2015

Debt and Financing Arrangements [Abstract]

Long-term debt

	October 31, 2015				April 30, 2015
	Principal Outstanding		Carrying Amount (A)		Principal Outstanding		Carrying Amount (A)
1.75% Senior Notes due March 15, 2018	$	500.0	$	497.4	$	500.0	$	496.9
2.50% Senior Notes due March 15, 2020		500.0		494.9		500.0		494.3
3.50% Senior Notes due October 15, 2021		750.0		792.7		750.0		796.0
3.00% Senior Notes due March 15, 2022		400.0		395.6		400.0		395.3
3.50% Senior Notes due March 15, 2025		1,000.0		992.3		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		584.1		600.0		583.8
Term Loan Credit Agreement due March 23, 2020		1,100.0		1,095.4		1,550.0		1,544.9
Total long-term debt	$	5,500.0	$	5,494.5	$	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.