Share-Based Compensation and Savings Plans (Schedule of all Transactions Related to Performance Share Units Under the Plans) (Details) - Performance Share Units shares in Millions	3 Months Ended
	Sep. 30, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested at Beginning of Period | shares	0.9
Granted | shares	0.3
Vested | shares	(0.4)	[1]
Canceled and forfeited | shares	0.0
Nonvested at End of Period | shares	0.8
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted-Average Grant Date Fair Value [Roll Forward]
Weighted-Average Grant Date Fair Value Per Share, Nonvested at Beginning of Period	$ 50.31
Weighted-Average Grant Date Fair Value Per Share, Granted	84.34
Weighted-Average Grant Date Fair Value Per Share, Vested	39.81
Weighted-Average Grant Date Fair Value Per Share, Canceled and forfeited	0.00
Weighted-Average Grant Date Fair Value Per Share, Nonvested at End of Period	$ 62.64

[1] Vested based on achievement of 133 percent of the target performance goal.