Pension, Postretirement Health Care and Other Benefits (Details 2) - Prepaid forward contracts - USD ($) $ / shares in Units, shares in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Aug. 01, 2015 |
Aug. 02, 2014 |
Aug. 01, 2015 |
Aug. 02, 2014 |
Jan. 31, 2015 |
|
| Prepaid Forward Contracts on Target Common Stock | |||||
| Change in fair value for contracts indexed to Target common stock, recognized in earnings, pretax | $ 1,000,000 | $ 5,000,000 | $ 4,000,000 | $ 2,000,000 | |
| Payments for derivative instrument, investing activities | $ 0 | $ 0 | |||
| Number of Shares | 0.4 | 0.7 | 0.4 | 0.7 | 0.5 |
| Contractual Price Paid per Share | $ 41.13 | $ 42.88 | $ 41.11 | ||
| Contractual Fair Value | $ 36,000,000 | $ 40,000,000 | $ 36,000,000 | $ 40,000,000 | $ 38,000,000 |
| Total Cash Investment | $ 18,000,000 | $ 29,000,000 | $ 18,000,000 | $ 29,000,000 | $ 21,000,000 |