Equity - Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 4,530,978	$ 4,802,721	$ 4,578,678	$ 5,107,569
Net income	238,847	187,142	690,485	565,305
Other comprehensive income (loss)	118,612	159,188	(64,787)	12,947
Dividends paid	(88,171)	(85,182)	(257,161)	(256,890)
Stock incentive plan activity	(4,383)	13,114	13,360	48,052
Acquisition activity	1,843		1,843
Shares purchased at cost	(50,000)	(50,000)	(214,692)	(450,000)
Ending balance	4,747,726	5,026,983	4,747,726	5,026,983
Shareholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	4,527,709	4,799,406	4,575,255	5,104,287
Net income	238,673	187,084	690,107	565,044
Other comprehensive income (loss)	118,311	159,190	(65,068)	13,080
Dividends paid	(88,171)	(85,182)	(256,823)	(256,851)
Stock incentive plan activity	(4,383)	13,114	13,360	48,052
Acquisition activity	0		0
Shares purchased at cost	(50,000)	(50,000)	(214,692)	(450,000)
Ending balance	4,742,139	5,023,612	4,742,139	5,023,612
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	3,269	3,315	3,423	3,282
Net income	174	58	378	261
Other comprehensive income (loss)	301	(2)	281	(133)
Dividends paid	0	0	(338)	(39)
Stock incentive plan activity	0	0	0	0
Acquisition activity	1,843		1,843
Shares purchased at cost	0	0	0	0
Ending balance	$ 5,587	$ 3,371	$ 5,587	$ 3,371