Share-Based Incentive Plan (Stock Awards) (Details) - Jun. 30, 2015 - $ / shares	Total
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of shares under stock awards, outstanding at beginning of period	16,207,777
Weighted average exercise price per share, outstanding at beginning of period	$ 33.21
Number of shares under stock awards granted	402,595
Weighted average exercise price per share, granted	$ 58.74
Number of shares under stock awards, exercised	(4,569,463)
Weighted average exercise price per share, exercised	$ 22.51
Number of shares under stock awards, forfeited	(120,193)
Weighted average exercise price per share, forfeited	$ 45.42
Number of shares under stock awards converted	(4,100,000)
Weighted average exercise price per share, converted	$ 53.33
Number of shares under stock awards, outstanding at end of period	7,820,716
Weighted average exercise price per share, outstanding at end of period	$ 30.02
Number of shares under stock awards, vested and expected to vest at end of period	7,477,242
Weighted average exercise price per share, vested and expected to vest at end of period	$ 29.28
Number of shares under stock awards, options exercisable at end of period	5,379,751
Weighted average exercise price per share, options exercisable at end of period	$ 22.29