Revenue (Summary of Cumulative Effect Adjustment) (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Sep. 01, 2018	Aug. 31, 2018
Assets
Contract assets	$ 911,940	$ 591,616	$ 0
Inventories, net	3,023,003	2,996,435	3,457,706
Prepaid expenses and other current assets	501,573	1,103,729	1,141,000
Deferred income taxes	198,827	209,927	218,252
Liabilities
Contract liabilities	511,329	690,142	0
Deferred income	0	0
Other accrued expenses	1,402,657	1,041,371	1,000,979
Deferred income taxes	115,818	117,362	114,385
Equity
Retained earnings	2,037,037	1,802,699	1,760,097
Balance without the adoption of ASU 2014-09
Assets
Contract assets	0		0
Inventories, net	3,761,591		3,457,706
Prepaid expenses and other current assets	514,769		1,141,000
Deferred income taxes	202,791		218,252
Liabilities
Contract liabilities	0		0
Deferred income	521,035		691,365
Other accrued expenses			1,000,979
Deferred income taxes	111,304		114,385
Equity
Retained earnings	$ 1,885,360		$ 1,760,097
Adjustments due to adoption of ASU 2014-09 | ASU 2014-09
Assets
Contract assets		591,616
Inventories, net		(461,271)
Prepaid expenses and other current assets		(37,271)
Deferred income taxes		(8,325)
Liabilities
Contract liabilities		690,142
Deferred income		(691,365)
Other accrued expenses		40,392
Deferred income taxes		2,977
Equity
Retained earnings		$ 42,602