Earnings Per Share Earnings Per Share - Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Numerator:
Net income attributable to common shareholders	$ 285,345	$ 242,406	$ 832,686	$ 740,010
Denominator:
Basic - weighted average common shares	138,794,789	149,039,529	144,342,288	149,143,478
Increase in weighted average common shares from dilutive effect of equity-based awards	2,395,014	2,700,088	2,284,985	2,418,798
Diluted - weighted average common shares, assuming exercise of equity-based awards	141,189,803	151,739,617	146,627,273	151,562,276
Basic earnings per share (in usd per share)	$ 2.06	$ 1.63	$ 5.77	$ 4.96
Diluted earnings per share (in usd per share)	$ 2.02	$ 1.60	$ 5.68	$ 4.88