Debt and Financing Arrangements (Tables)

3 Months Ended

Jul. 31, 2017

Debt Disclosure [Abstract]

Long-term debt

Long-term debt consists of the following:

	July 31, 2017				April 30, 2017
	Principal Outstanding		Carrying Amount (A)		Principal Outstanding		Carrying Amount (A)
1.75% Senior Notes due March 15, 2018	$	500.0	$	499.3	$	500.0	$	499.0
2.50% Senior Notes due March 15, 2020	500.0		496.9		500.0		496.6
3.50% Senior Notes due October 15, 2021	750.0		780.8		750.0		782.6
3.00% Senior Notes due March 15, 2022	400.0		396.8		400.0		396.6
3.50% Senior Notes due March 15, 2025	1,000.0		993.8		1,000.0		993.6
4.25% Senior Notes due March 15, 2035	650.0		642.8		650.0		642.6
4.38% Senior Notes due March 15, 2045	600.0		585.0		600.0		584.9
Term Loan Credit Agreement due March 23, 2020	550.0		548.7		550.0		548.6
Total long-term debt	$	4,950.0	$	4,944.1	$	4,950.0	$	4,944.5
Current portion of long-term debt	500.0		499.3		500.0		499.0
Total long-term debt, less current portion	$	4,450.0	$	4,444.8	$	4,450.0	$	4,445.5

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