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Pension and Postretirement Health Care Plans (Details 2) (USD $)
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12 Months Ended |
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Feb. 02, 2013
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Jan. 28, 2012
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Jan. 29, 2011
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| Expected Amortization of Amounts in Accumulated Other Comprehensive Income |
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| Net actuarial loss, pretax |
$ 108,000,000 |
|
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| Prior service credits, pretax |
(27,000,000) |
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| Total amortization expense, pretax |
81,000,000 |
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| Net actuarial loss, net of tax |
65,000,000 |
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| Prior service credits, net of tax |
(16,000,000) |
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| Total amortization expense, net of tax |
49,000,000 |
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| Defined Benefit Pension Plan Information |
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|
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| Accumulated benefit obligation (ABO) for all plans |
3,140,000,000 |
2,872,000,000 |
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| Projected benefit obligation for pension plans with an ABO in excess of plan assets |
59,000,000 |
55,000,000 |
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| Total ABO for pension plans with an ABO in excess of plan assets |
53,000,000 |
48,000,000 |
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| Amount of future salary growth assumed to determine present value of benefit earned to date |
0 |
0 |
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| Benefit Obligation Weighted Average Assumptions |
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| Expected Market-Related Value of Assets, adjustments (as a percent) |
20.00% |
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| Expected Market Value of Assets, adjustment period |
5 years |
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| Ultimate health care cost trend rate (as a percent) |
5.00% |
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| Increase in the cost of covered health care benefits (as a percent) |
7.50% |
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| Health care cost trend rate in 2013 (as a percent) |
7.50% |
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| Effect of a one percent change in health care cost trend rates |
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| Effect of a one percent increase on the total of service and interest cost components of net periodic postretirement health care benefit expense |
1,000,000 |
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| Effect of a one percent decrease on the total of service and interest cost components of net periodic postretirement health care benefit expense |
(1,000,000) |
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| Effect of a one percent increase on the health care component of the accumulated postretirement benefit obligation |
9,000,000 |
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| Effect of a one percent decrease on the health care component of the accumulated postretirement benefit obligation |
(8,000,000) |
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| Defined Benefit Plan Information |
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|
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| Current targeted allocation |
100% |
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| Actual allocation (as a percent) |
100.00% |
100.00% |
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| Total fair value of plan assets |
3,223,000,000 |
2,921,000,000 |
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Level 1
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
5,000,000 |
11,000,000 |
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Level 2
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
2,860,000,000 |
2,512,000,000 |
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Level 3
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|
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| Defined Benefit Plan Information |
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|
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| Total fair value of plan assets |
358,000,000 |
398,000,000 |
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Cash and cash equivalents
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|
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| Defined Benefit Plan Information |
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|
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| Total fair value of plan assets |
174,000,000 |
263,000,000 |
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Cash and cash equivalents | Level 1
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
5,000,000 |
11,000,000 |
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Cash and cash equivalents | Level 2
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| Defined Benefit Plan Information |
|
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| Total fair value of plan assets |
169,000,000 |
252,000,000 |
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Common collective trusts
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
878,000,000 |
653,000,000 |
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Common collective trusts | Level 2
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
878,000,000 |
653,000,000 |
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Domestic equity securities
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| Benefit Obligation Weighted Average Assumptions |
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| Expected annualized long-term rate of return on plan assets (as a percent) |
8.50% |
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| Defined Benefit Plan Information |
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| Current targeted allocation |
19% |
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| Actual allocation (as a percent) |
20.00% |
19.00% |
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| Actual allocation of common stock of total plan assets included in equity securities (as a percent) |
1.00% |
1.00% |
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International equity securities
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| Benefit Obligation Weighted Average Assumptions |
|
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| Expected annualized long-term rate of return on plan assets (as a percent) |
8.50% |
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| Defined Benefit Plan Information |
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| Current targeted allocation |
12% |
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| Actual allocation (as a percent) |
11.00% |
11.00% |
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Government securities
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
296,000,000 |
356,000,000 |
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Government securities | Level 2
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
296,000,000 |
356,000,000 |
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Fixed income
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
560,000,000 |
466,000,000 |
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Fixed income | Level 2
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
560,000,000 |
466,000,000 |
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Debt securities
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| Benefit Obligation Weighted Average Assumptions |
|
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| Expected annualized long-term rate of return on plan assets (as a percent) |
5.50% |
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| Defined Benefit Plan Information |
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| Current targeted allocation |
25% |
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| Actual allocation (as a percent) |
27.00% |
29.00% |
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Balanced funds
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| Benefit Obligation Weighted Average Assumptions |
|
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| Expected annualized long-term rate of return on plan assets (as a percent) |
8.50% |
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| Defined Benefit Plan Information |
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| Current targeted allocation |
30% |
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| Actual allocation (as a percent) |
29.00% |
25.00% |
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| Total fair value of plan assets |
925,000,000 |
744,000,000 |
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Balanced funds | Level 2
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
925,000,000 |
744,000,000 |
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Private equity funds
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
236,000,000 |
283,000,000 |
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Private equity funds | Level 3
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
236,000,000 |
283,000,000 |
327,000,000 |
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Other assets
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| Benefit Obligation Weighted Average Assumptions |
|
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| Expected annualized long-term rate of return on plan assets (as a percent) |
10.00% |
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| Defined Benefit Plan Information |
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| Current targeted allocation |
14% |
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| Actual allocation (as a percent) |
13.00% |
16.00% |
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| Total fair value of plan assets |
154,000,000 |
156,000,000 |
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Other assets | Level 2
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
32,000,000 |
41,000,000 |
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Other assets | Level 3
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| Defined Benefit Plan Information |
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| Total fair value of plan assets |
122,000,000 |
115,000,000 |
127,000,000 |
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Real Estate
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| Defined Benefit Plan Information |
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| Actual allocation (as a percent) |
4.00% |
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Pension Benefits
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| Net Pension and Postretirement Health Care Benefits Expense |
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| Service cost benefits earned during the period |
121,000,000 |
117,000,000 |
115,000,000 |
| Interest cost on projected benefit obligation |
139,000,000 |
137,000,000 |
129,000,000 |
| Expected return on assets |
(220,000,000) |
(206,000,000) |
(191,000,000) |
| Amortization of losses |
103,000,000 |
67,000,000 |
44,000,000 |
| Amortization of prior service cost |
|
(2,000,000) |
(3,000,000) |
| Total Net Pension and Postretirement Health Care Benefits Expense |
143,000,000 |
113,000,000 |
94,000,000 |
| Benefit Obligation Weighted Average Assumptions |
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| Discount rate (as a percent) |
4.40% |
4.65% |
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| Average assumed rate of compensation increase (as a percent) |
3.00% |
3.50% |
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| Defined Benefit Plan Information |
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| Actual contributions by employer to their qualified defined benefit pension plans |
122,000,000 |
152,000,000 |
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Postretirement Health Care Benefits
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|
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| Net Pension and Postretirement Health Care Benefits Expense |
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| Service cost benefits earned during the period |
10,000,000 |
10,000,000 |
9,000,000 |
| Interest cost on projected benefit obligation |
3,000,000 |
4,000,000 |
4,000,000 |
| Amortization of losses |
3,000,000 |
4,000,000 |
4,000,000 |
| Amortization of prior service cost |
(10,000,000) |
(10,000,000) |
(10,000,000) |
| Total Net Pension and Postretirement Health Care Benefits Expense |
6,000,000 |
8,000,000 |
7,000,000 |
| Benefit Obligation Weighted Average Assumptions |
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| Discount rate (as a percent) |
2.75% |
3.60% |
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Postretirement Health Care Benefits | Minimum
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| Defined Benefit Plan Information |
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| Estimated contribution by employer in the next fiscal year |
6,000,000 |
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Postretirement Health Care Benefits | Maximum
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| Defined Benefit Plan Information |
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| Estimated contribution by employer in the next fiscal year |
$ 7,000,000 |
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