Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		8 Months Ended		12 Months Ended
	May 10, 2020	May 12, 2019	May 10, 2020	May 12, 2019	Sep. 01, 2019
Segment Reporting Information [Line Items]
Total Revenue	$ 37,266	$ 34,740	$ 113,378	$ 105,205	$ 152,703
Operating Income	1,179	1,122	3,506	3,274	4,737
Total Assets	51,732	43,752	51,732	43,752	45,400
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total Revenue	27,626	25,536	83,214	76,958	111,751
Operating Income	853	736	2,309	2,108	3,063
Total Assets	36,618	30,416	36,618	30,416	32,162
Operating Segments [Member] | Canada Operations
Segment Reporting Information [Line Items]
Total Revenue	4,722	4,792	15,080	14,561	21,366
Operating Income	129	213	559	625	924
Total Assets	4,432	4,637	4,432	4,637	4,369
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total Revenue	4,918	4,412	15,084	13,686	19,586
Operating Income	197	173	638	541	750
Total Assets	$ 10,682	$ 8,699	$ 10,682	$ 8,699	$ 8,869