Available-for-Sale Securities

9 Months Ended

Mar. 31, 2016

Available-for-sale Securities [Abstract]

Available-for-Sale Securities Disclosure [Text Block]

Available-for-Sale Securities

We invest in marketable securities, which are classified as available-for-sale and are carried at fair value in the condensed consolidated balance sheets. We held the following investments in marketable securities at fair value at:

(in millions)	March 31, 2016		June 30, 2015
Current available-for-sale securities:
Commercial paper	$	—	$	4
Treasury bills	—		12
International bonds	1		2
Corporate bonds	51		34
U.S. agency bonds	2		5
Asset-backed securities	36		8
International equity securities	2		—
U.S. agency mortgage-backed securities	13		26
Total current available-for-sale securities	105		91
Long-term available-for-sale securities:
Corporate bonds	40		33
U.S. agency bonds	30		18
Asset-backed securities	13		41
U.S. agency mortgage-backed securities	17		10
Total long-term available-for-sale securities	100		102
Total available-for-sale securities	$	205	$	193

Gross unrealized gains and losses were immaterial at March 31, 2016 and June 30, 2015. During the three and nine months ended March 31, 2016 and 2015, gross realized gains and losses were immaterial and we did not recognize any other-than-temporary impairments. At March 31, 2016, the weighted-average effective maturity of our current and long-term investments was approximately 6 months and 16 months, respectively.