Share-Based Compensation (Schedule of Total Share-Based Compensation Expense by Type of Award) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2020 |
Mar. 31, 2019 |
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Total share-based compensation | $ 27 | $ 23 | $ 68 | $ 64 |
Restricted Share Unit | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Total share-based compensation | 20 | 17 | 53 | 47 |
Employee Stock Option | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Total share-based compensation | 1 | 2 | 3 | 8 |
Performance Share Unit | ||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
Total share-based compensation | $ 6 | $ 4 | $ 12 | $ 9 |