|
Stockholders' Equity (Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
|
Nov. 01, 2014
|
Nov. 02, 2013
|
Nov. 01, 2014
|
Nov. 02, 2013
|
| Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |
|
|
|
|
| February 1, 2014 |
|
|
$ (628) |
|
| Amounts reclassified from accumulated other comprehensive income, Net Actuarial Gain/(Loss) |
10 |
26 |
30 |
81 |
| Amounts reclassified from accumulated other comprehensive income, Prior Service Credit/(Cost) |
(1) |
0 |
(1) |
(1) |
| Net current-period other comprehensive income |
9 |
26 |
29 |
80 |
| November 1, 2014 |
(599) |
(1,038) |
(599) |
(1,038) |
|
Net Actuarial Gain/(Loss) [Member]
|
|
|
|
|
| Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |
|
|
|
|
| February 1, 2014 |
|
|
(609) |
|
| Amounts reclassified from accumulated other comprehensive income, Net Actuarial Gain/(Loss) |
|
|
30 |
|
| Net current-period other comprehensive income |
|
|
30 |
|
| November 1, 2014 |
(579) |
|
(579) |
|
|
Prior Service Credit/(Cost) [Member]
|
|
|
|
|
| Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |
|
|
|
|
| February 1, 2014 |
|
|
(19) |
|
| Amounts reclassified from accumulated other comprehensive income, Prior Service Credit/(Cost) |
|
|
(1) |
|
| Net current-period other comprehensive income |
|
|
(1) |
|
| November 1, 2014 |
(20) |
|
(20) |
|
|
Accumulated Other Comprehensive Income/(Loss) [Member]
|
|
|
|
|
| Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |
|
|
|
|
| February 1, 2014 |
|
|
(628) |
|
| Amounts reclassified from accumulated other comprehensive income, Accumulated Other Comprehensive Income/(Loss) |
|
|
29 |
|
| Net current-period other comprehensive income |
|
|
29 |
|
| November 1, 2014 |
$ (599) |
|
$ (599) |
|