Share-Based Compensation (Schedule of All Stock Option Transactions Under the Plans) (Details) shares in Millions	9 Months Ended
	Mar. 31, 2017 $ / shares shares
Stock Options
Outstanding at beginning of period (in shares) | shares	7
Granted (in shares) | shares	1
Exercised (in shares) | shares	(1)
Canceled and forfeited (in shares) | shares	0
Outstanding at end of period (in shares) | shares	7
Exercisable at end of period (in shares) | shares	4
Weighted-Average Exercise Price per Common Share
Outstanding at beginning of period (in usd per share) | $ / shares	$ 54.09
Granted (in usd per share) | $ / shares	83.11
Exercised (in usd per share) | $ / shares	37.46
Canceled and forfeited (in usd per share) | $ / shares	0.00
Outstanding at end of period (in usd per share) | $ / shares	62.99
Exercisable at end of period (in usd per share) | $ / shares	$ 52.28