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Debt and Credit Facilities
12 Months Ended
Apr. 30, 2015
Debt Disclosure [Abstract]  
DEBT AND CREDIT FACILITIES
DEBT AND CREDIT FACILITIES
Our long-term debt (net of unamortized discount) consisted of:
April 30,
2014
 
2015
2.50% senior notes, due in fiscal 2016
$
249

 
$
250

1.00% senior notes, due in fiscal 2018
249

 
249

2.25% senior notes, due in fiscal 2023
249

 
249

3.75% senior notes, due in fiscal 2043
250

 
250

 
997

 
998

Less current portion

 
250

 
$
997

 
$
748


Debt payments required over the next five fiscal years consist of $250 in 2016, $0 in 2017, $250 in 2018, $0 in 2019, $0 in 2020, and $500 after 2020.
The senior notes contain terms and covenants customary of these types of unsecured securities, including limitations on the amount of secured debt we can issue.
As of April 30, 2015, our short-term borrowings of $190 included $183 of commercial paper, with an average interest rate of 0.17%, and an average remaining maturity of 13 days.
We have a committed revolving credit agreement with various U.S. and international banks for $800 that expires in November 2018. Its most restrictive quantitative covenant requires that the ratio of our consolidated EBITDA (as defined in the agreement) to consolidated interest expense not be less than 3 to 1. At April 30, 2015, with a ratio of 38 to 1, we were well within this covenant’s parameters and had no borrowing outstanding under this facility.
On February 25, 2013, we redeemed, in full, our 5.00% notes due in fiscal 2014 by exercising a “make whole” call provision of the notes. In connection with the redemption, we incurred costs of $9, which is reflected as interest expense in the accompanying consolidated statement of operations for fiscal 2013.