Equity Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Changes in equity
Beginning balance	$ 4,854,751	$ 6,582,364	$ 5,107,569	$ 6,662,808
Net income	183,137	267,335	378,163	547,506
Other Comprehensive Income (Loss), Net of Tax	(62,956)	(191,849)	(146,240)	(467,018)
Dividends paid	(85,720)	(93,151)	(171,707)	(164,758)
Stock incentive plan activity	3,509	12,141	34,936	48,302
Shares purchased at cost	(90,000)	(816,699)	(400,000)	(866,699)
Ending balance	4,802,721	5,760,141	4,802,721	5,760,141
Shareholders' Equity
Changes in equity
Beginning balance	4,851,518	6,579,003	5,104,287	6,659,428
Net income	182,982	267,252	377,960	547,341
Other Comprehensive Income (Loss), Net of Tax	(62,922)	(191,797)	(146,109)	(466,865)
Dividends paid	(85,681)	(93,151)	(171,668)	(164,758)
Stock incentive plan activity	3,509	12,141	34,936	48,302
Shares purchased at cost	(90,000)	(816,699)	(400,000)	(866,699)
Ending balance	4,799,406	5,756,749	4,799,406	5,756,749
Noncontrolling Interests
Changes in equity
Beginning balance	3,233	3,361	3,282	3,380
Net income	155	83	203	165
Other Comprehensive Income (Loss), Net of Tax	(34)	(52)	(131)	(153)
Dividends paid	(39)	0	(39)	0
Stock incentive plan activity	0	0	0	0
Shares purchased at cost	0	0	0	0
Ending balance	$ 3,315	$ 3,392	$ 3,315	$ 3,392