Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Payments for Repurchase of Common Stock		$ 0	$ 350
Treasury Shares
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	(1.0)		(7.0)
Treasury shares acquired, average price per share (in usd per share)			$ 48.00
Treasury Stock Acquired Shares			7.3

Treasury Stock Acquired Shares

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- Definition

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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- Definition

The cash outflow to reacquire common stock during the period.

+ References

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-Topic 230
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- Definition

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

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- Definition

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

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