Shareholders' Equity Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
Oct. 25, 2018	Sep. 30, 2018	Sep. 30, 2017
Treasury Shares
Class of Stock [Line Items]
Treasury shares acquired (using cost method), shares		9.5	2.2
Payments for Repurchase of Common Stock		$ 480	$ (150)
Treasury shares acquired, average price per share (in usd per share)		$ 50.45	$ 67.92
Subsequent Event
Class of Stock [Line Items]
Accelerated Share Repurchases, Cash or Stock Settlement	2.0

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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.

+ References

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Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

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-Publisher FASB
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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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