Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2021	Mar. 31, 2021	Mar. 31, 2020
Class of Stock [Line Items]
Payments for Repurchase of Common Stock	$ 200	$ 200	$ 350
Treasury Shares
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	(3.7)	(3.7)	(7.3)
Treasury shares acquired, average price per share (in usd per share)	$ 54.40	$ 54.40	$ 48.00

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The cash outflow to reacquire common stock during the period.

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

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

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