Income Taxes - Provision for Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 26, 2017	Aug. 27, 2016	Aug. 29, 2015
Current:
Federal	$ 487,492	$ 534,621	$ 522,073
State	31,733	39,223	41,921
International	50,493	52,844	42,406
Total	569,718	626,688	606,400
Deferred:
Federal	72,208	48,509	38,299
State	7,769	9,453	941
International	(5,075)	(12,943)	(3,269)
Total	74,902	45,019	35,971
Income tax expense	$ 644,620	$ 671,707	$ 642,371