Retirement Benefit Plans (Defined Contribution Plans) (Details) - USD ($)
$ in Millions |
12 Months Ended |
Jan. 30, 2016 |
Jan. 31, 2015 |
Feb. 01, 2014 |
| Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] |
|
|
|
| Defined Contribution Plan, Cost Recognized |
$ 56
|
$ 53
|
$ 52
|
| Savings, Profit-Sharing and Stock Ownership Plan [Member] |
|
|
|
| Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] |
|
|
|
| Defined contribution plan, required age for employee eligibility |
21 years
|
|
|
| Defined contribution plan, service term required for matching contributions |
1 year
|
|
|
| Defined contribution plan, service hours required for matching contributions |
1000 hours
|
|
|
| Defined contribution plan, employer's matching contribution, percent of employees' contribution subject to plan |
50.00%
|
|
|
| Defined contribution plan, employee contribution subject to plan, percent of employees' gross pay |
6.00%
|
|
|
| Defined contribution plan, vesting period for matching contributions |
3 years
|
|
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| Savings Plan - Noncontributory Retirement Account [Member] |
|
|
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| Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] |
|
|
|
| Defined contribution plan, service hours required for matching contributions |
1000 hours
|
|
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| Defined contribution plan, vesting period for matching contributions |
3 years
|
|
|
| Defined contribution plan, annual contributions per employee (percent) |
2.00%
|
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