Quarterly Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 3,496,238	$ 3,119,139	$ 2,670,804	$ 2,743,131	$ 2,957,150	$ 2,828,665	$ 2,705,590	$ 2,869,348	$ 12,029,312	$ 11,360,753	$ 12,711,744
Gross profit	841,556	735,349	626,320	637,125	684,695	619,264	564,966	668,444	2,840,350	2,537,369	3,056,499
Net income attributable to common shareholders	$ 293,305	$ 238,673	$ 241,305	$ 210,129	$ 241,796	$ 187,084	$ 182,982	$ 194,978	$ 983,412	$ 806,840	$ 1,012,140
Diluted earnings per share (in USD per share)	$ 2.15	$ 1.75	$ 1.78	$ 1.55	$ 1.77	$ 1.37	$ 1.33	$ 1.41	$ 7.25	$ 5.89	$ 6.97