Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Feb. 17, 2019 |
Feb. 18, 2018 |
Feb. 17, 2019 |
Feb. 18, 2018 |
Sep. 02, 2018 |
|
| Segment Reporting Information [Line Items] | |||||
| Total Revenue | $ 35,396 | $ 32,995 | $ 70,465 | $ 64,804 | $ 141,576 |
| Operating Income | 1,203 | 1,016 | 2,152 | 1,967 | 4,480 |
| Depreciation and amortization | 352 | 344 | 683 | 679 | 1,437 |
| Additions to property and equipment | 587 | 508 | 1,317 | 1,328 | 2,969 |
| Net property and equipment | 20,145 | 19,049 | 20,145 | 19,049 | 19,681 |
| Total Assets | 42,799 | 38,703 | 42,799 | 38,703 | 40,830 |
| Operating Segments [Member] | United States Operations | |||||
| Segment Reporting Information [Line Items] | |||||
| Total Revenue | 25,872 | 23,687 | 51,422 | 46,500 | 102,286 |
| Operating Income | 812 | 603 | 1,372 | 1,136 | 2,787 |
| Depreciation and amortization | 256 | 262 | 504 | 514 | 1,078 |
| Additions to property and equipment | 404 | 375 | 928 | 855 | 2,046 |
| Net property and equipment | 13,725 | 12,690 | 13,725 | 12,690 | 13,353 |
| Total Assets | 30,033 | 26,417 | 30,033 | 26,417 | 28,207 |
| Operating Segments [Member] | Canada Operations | |||||
| Segment Reporting Information [Line Items] | |||||
| Total Revenue | 4,792 | 4,745 | 9,769 | 9,516 | 20,689 |
| Operating Income | 198 | 206 | 412 | 442 | 939 |
| Depreciation and amortization | 37 | 31 | 68 | 63 | 135 |
| Additions to property and equipment | 77 | 39 | 171 | 114 | 268 |
| Net property and equipment | 1,937 | 1,852 | 1,937 | 1,852 | 1,900 |
| Total Assets | 4,250 | 3,825 | 4,250 | 3,825 | 4,303 |
| Operating Segments [Member] | Other International Operations | |||||
| Segment Reporting Information [Line Items] | |||||
| Total Revenue | 4,732 | 4,563 | 9,274 | 8,788 | 18,601 |
| Operating Income | 193 | 207 | 368 | 389 | 754 |
| Depreciation and amortization | 59 | 51 | 111 | 102 | 224 |
| Additions to property and equipment | 106 | 94 | 218 | 359 | 655 |
| Net property and equipment | 4,483 | 4,507 | 4,483 | 4,507 | 4,428 |
| Total Assets | $ 8,516 | $ 8,461 | $ 8,516 | $ 8,461 | $ 8,320 |