|
Stockholders' Equity (Components of 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
|
| Stockholders' Equity Note [Abstract] |
|
|
|
|
| Unrealized gain/(loss), gross amount |
$ 0 |
$ (1) |
$ 0 |
$ (1) |
| Unrealized gain/(loss) on REITs, tax |
0 |
1 |
0 |
1 |
| Unrealized gain/(loss), net amount |
0 |
0 |
0 |
0 |
| Reclassification for amortization of net actuarial (gain)/loss, gross amount |
16 |
43 |
49 |
131 |
| Reclassification for amortization of net actuarial (gain)/loss, tax |
(6) |
(17) |
(19) |
(50) |
| Reclassification for amortization of net actuarial (gain)/loss, net |
10 |
26 |
30 |
81 |
| Reclassification for amortization of prior service (credit)/cost, gross amount |
(1) |
(1) |
(1) |
(2) |
| Reclassification for amortization of prior service (credit)/cost, tax |
0 |
1 |
0 |
1 |
| Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), Net of Tax |
(1) |
0 |
(1) |
(1) |
| Total, gross amount |
15 |
41 |
48 |
128 |
| Total, tax |
(6) |
(15) |
(19) |
(48) |
| Total, net of tax |
$ 9 |
$ 26 |
$ 29 |
$ 80 |