XML 142 R111.htm IDEA: XBRL DOCUMENT v3.7.0.1
Share-Based Compensation (Additional Data Related to Performance Share Unit Activity) (Details) - Performance Share Units - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total compensation cost, net of estimated forfeitures, related to nonvested performance share units not yet recognized, pre-tax $ 13 $ 17 $ 16
Weighted-average period over which performance share unit cost is expected to be recognized (in years) 2 years 2 years 2 years
Total fair value of shares vested during the year $ 19 $ 16 $ 8