v2.4.0.6
Segment Reporting Information by Segment (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 4 Months Ended 12 Months Ended
May 06, 2012
Feb. 12, 2012
Nov. 20, 2011
May 08, 2011
Feb. 13, 2011
Nov. 21, 2010
Sep. 02, 2012
Aug. 28, 2011
Sep. 02, 2012
Aug. 28, 2011
Aug. 29, 2010
Segment Reporting Information [Line Items]                      
Total revenue $ 22,324 $ 22,967 $ 21,628 $ 20,623 $ 20,875 $ 19,239 $ 32,218 $ 28,178 $ 99,137 $ 88,915 $ 77,946
Operating income 623 644 543 556 596 525 949 762 2,759 2,439 2,077
Depreciation and amortization                 908 855 795
Capital expenditures, net                 1,480 1,290 1,055
Property and equipment, net             12,961 12,432 12,961 12,432 11,314
Total assets             27,140 26,761 27,140 26,761 23,815
United States Operations
                      
Segment Reporting Information [Line Items]                      
Total revenue                 71,776 64,904 59,624
Operating income                 1,632 1,395 1,310
Depreciation and amortization                 667 640 625
Capital expenditures, net                 1,012 876 804
Property and equipment, net             9,236 8,870 9,236 8,870 8,709
Total assets             18,401 18,558 18,401 18,558 18,247
Canadian Operations
                      
Segment Reporting Information [Line Items]                      
Total revenue                 15,717 14,020 12,051
Operating income                 668 621 547
Depreciation and amortization                 117 117 107
Capital expenditures, net                 170 144 162
Property and equipment, net             1,664 1,608 1,664 1,608 1,474
Total assets             4,237 3,741 4,237 3,741 3,147
Other International Operations
                      
Segment Reporting Information [Line Items]                      
Total revenue                 11,644 9,991 6,271
Operating income                 459 423 220
Depreciation and amortization                 124 98 63
Capital expenditures, net                 298 270 89
Property and equipment, net             2,061 1,954 2,061 1,954 1,131
Total assets             $ 4,502 $ 4,462 $ 4,502 $ 4,462 $ 2,421