|
Stockholders' Equity (Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified
|
12 Months Ended |
|
Jan. 31, 2015
|
Feb. 01, 2014
|
Feb. 02, 2013
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
| Net unrealized gain/(loss) on REITs, Net of Tax Amount |
$ 0 |
$ 0 |
$ 17 |
| Balance as of the beginning of the period |
3,087 |
3,171 |
4,010 |
| Current period change, REITs |
0 |
(17) |
|
| Current period change, accumulated other comprehensive income/(loss) |
(437) |
490 |
91 |
| Balance as of the end of the period |
1,914 |
3,087 |
3,171 |
| Net Actuarial Gain/(Loss) [Member] |
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
| Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax |
(1,023) |
(609) |
(1,121) |
| Current period change, pension and postretirement benefits |
(414) |
512 |
|
| Prior Service Credit/(Cost) [Member] |
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
| Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax |
(40) |
(19) |
(14) |
| Current period change, pension and postretirement benefits |
(21) |
(5) |
|
| Accumulated Other Comprehensive Income/(Loss) [Member] |
|
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] |
|
|
|
| Balance as of the beginning of the period |
(628) |
(1,118) |
(1,209) |
| Current period change, accumulated other comprehensive income/(loss) |
(437) |
490 |
91 |
| Balance as of the end of the period |
$ (1,065) |
$ (628) |
$ (1,118) |