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Available-for-Sale Securities (Tables)
12 Months Ended
Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]  
Available-for-sale Securities
We held the following investments in marketable securities at fair value at June 30:
(in millions)
2014
Current available-for-sale securities:
 
Commercial paper
$
4

Treasury bills
85

International bonds
1

Corporate bonds
3

Total current available-for-sale securities
93

 
 
Long-term available-for-sale securities:
 
Corporate bonds
5

U.S. agency bonds
2

Total long-term available-for-sale securities
7

Total available-for-sale securities
$
100