Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Aug. 26, 2017	Aug. 27, 2016	Aug. 29, 2015
Income Statement [Abstract]
Net sales	$ 10,888,676	$ 10,635,676	$ 10,187,340
Cost of sales, including warehouse and delivery expenses	5,149,056	5,026,940	4,860,309
Gross profit	5,739,620	5,608,736	5,327,031
Operating, selling, general and administrative expenses	3,659,551	3,548,341	3,373,980
Operating profit	2,080,069	2,060,395	1,953,051
Interest expense, net	154,580	147,681	150,439
Income before income taxes	1,925,489	1,912,714	1,802,612
Income tax expense	644,620	671,707	642,371
Net income	$ 1,280,869	$ 1,241,007	$ 1,160,241
Weighted average shares for basic earnings per share	28,430	29,889	31,560
Effect of dilutive stock equivalents	635	599	646
Weighted average shares for diluted earnings per share	29,065	30,488	32,206
Basic earnings per share	$ 45.05	$ 41.52	$ 36.76
Diluted earnings per share	$ 44.07	$ 40.70	$ 36.03