Available-for-Sale Securities

9 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

6. 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, 2018		June 30, 2017
Current available-for-sale securities:
Treasury bills	$	—	$	25
International bonds	—		3
Corporate bonds	—		30
U.S. agency bonds	—		3
Asset-backed securities	—		3
International equity securities	—		1
Total available-for-sale securities	$	—	$	65

In July 2017, we liquidated our marketable securities. There were no unrealized gains or losses at March 31, 2018, and gross unrealized gains and losses were immaterial at June 30, 2017. During the nine months ended March 31, 2018 and 2017, gross realized gains and losses were immaterial and we did not recognize any other-than-temporary impairments.