Equity-Based Compensation (Summary of Target Performance Stock Units and Restricted Stock Units Settled in Stock) (Parenthetical) (Details) $ in Millions	9 Months Ended
Mar. 31, 2019 USD ($)
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Intrinsic value of unvested stock units	$ 290
Retention RSUs \| Tranche Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity awards converted, percentage	50.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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