Debt (Tables)

12 Months Ended

Apr. 30, 2013

Debt Disclosure [Abstract]

Schedule of long-term debt

Our long-term debt (net of unamortized discount) consisted of:

April 30,	2012		2013
5.00% notes, due in fiscal 2014	$	251	$	—
2.50% notes, due in fiscal 2016	249		249
1.00% notes, due in fiscal 2018	—		249
2.25% notes, due in fiscal 2023	—		249
3.75% notes, due in fiscal 2043	—		250
Other	6		2
	506		999
Less current portion	3		2
	$	503	$	997