Significant Accounting Policies (Property and Equipment, Net) (Details) - USD ($)
$ in Millions |
12 Months Ended |
|
Jan. 28, 2017 |
Jan. 30, 2016 |
| Property, Plant and Equipment [Line Items] |
|
|
|
| Accumulated depreciation |
|
$ (3,842)
|
$ (3,757)
|
| Property and equipment, net |
|
4,599
|
4,816
|
| Land |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment |
|
249
|
272
|
| Buildings |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment |
|
$ 4,859
|
4,877
|
| Estimated useful lives |
|
50 years
|
|
| Furniture and equipment |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment |
|
$ 1,963
|
2,064
|
| Furniture and equipment | Minimum [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Estimated useful lives |
|
3 years
|
|
| Furniture and equipment | Maximum [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Estimated useful lives |
|
20 years
|
|
| Leasehold improvements(1) |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment |
[1] |
$ 1,254
|
1,244
|
| Capital Leases (Equipment) [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment |
|
$ 116
|
$ 116
|
| Capital Leases (Equipment) [Member] | Minimum [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Estimated useful lives |
|
3 years
|
|
| Capital Leases (Equipment) [Member] | Maximum [Member] |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Estimated useful lives |
|
5 years
|
|
|
|