Segment Reporting Segment Reporting Information by Item Category (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 24, 2019	Nov. 25, 2018
Disaggregation of Revenue [Line Items]
Total Revenue	$ 37,040	$ 35,069
Food and Sundries [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	14,532	13,641
Hardlines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	5,843	5,840
Fresh Food [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	4,576	4,293
Softlines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	4,297	4,123
Ancillary
Disaggregation of Revenue [Line Items]
Total Revenue	6,988	6,414
Net sales
Disaggregation of Revenue [Line Items]
Total Revenue	$ 36,236	$ 34,311