Long-Term Debt (Details) - USD ($)
$ in Millions |
3 Months Ended |
9 Months Ended |
|
Oct. 29, 2016 |
Jul. 30, 2016 |
Apr. 30, 2016 |
Oct. 31, 2015 |
Oct. 29, 2016 |
Oct. 31, 2015 |
Jan. 30, 2016 |
| Debt Instrument, Repurchased Face Amount |
|
|
|
$ 60
|
|
|
|
|
|
|
| Less: current maturities |
|
$ 263
|
|
|
$ 106
|
[1] |
$ 263
|
$ 106
|
[1] |
$ 101
|
| Unamortized debt issuance costs |
|
(65)
|
|
|
(76)
|
|
(65)
|
(76)
|
|
(61)
|
| Total debt, excluding capital leases and note payable |
|
4,772
|
|
|
5,253
|
|
4,772
|
5,253
|
|
4,769
|
| Total debt, excluding unamortized debt issuance costs, capital leases and note payable |
|
4,837
|
|
|
5,329
|
|
4,837
|
5,329
|
|
4,830
|
| Total long-term debt, excluding capital leases and note payable |
|
4,509
|
|
|
5,147
|
[1] |
4,509
|
5,147
|
[1] |
4,668
|
| (Gain)/loss on extinguishment of debt |
|
$ 0
|
$ 34
|
$ (4)
|
0
|
[1] |
$ 30
|
0
|
[1] |
|
| Senior Notes 5.65% Due 2020 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
5.65%
|
|
|
|
|
5.65%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
[2] |
$ 400
|
|
|
400
|
|
$ 400
|
400
|
|
400
|
| Senior Notes 5.75% Due 2018 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
5.75%
|
|
|
|
|
5.75%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
[2] |
$ 265
|
|
|
300
|
|
$ 265
|
300
|
|
300
|
| Senior Secured Notes Five Point Eight Seven Five Percent Due2023 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
5.875%
|
|
|
|
|
5.875%
|
|
|
|
| Secured Long-term Debt, Noncurrent |
[2] |
$ 500
|
500
|
|
|
|
$ 500
|
|
|
|
| Senior Notes 6.375% Due 2036 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
6.375%
|
|
|
|
|
6.375%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
[2] |
$ 388
|
|
|
400
|
|
$ 388
|
400
|
|
400
|
| Notes 6.9% Due 2026 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
6.90%
|
|
|
|
|
6.90%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 2
|
|
|
2
|
|
$ 2
|
2
|
|
2
|
| Debentures 7.125% Due 2023 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
7.125%
|
|
|
|
|
7.125%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 10
|
|
|
10
|
|
$ 10
|
10
|
|
10
|
| Debentures 7.4% Due 2037 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
7.40%
|
|
|
|
|
7.40%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 313
|
|
|
326
|
|
$ 313
|
326
|
|
326
|
| Notes 7.625% Due 2097 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
7.625%
|
|
|
|
|
7.625%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 500
|
|
|
500
|
|
$ 500
|
500
|
|
500
|
| Debentures Seven Point Six Five Percent Due2016 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
7.65%
|
|
|
|
|
7.65%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 0
|
|
|
78
|
|
$ 0
|
78
|
|
78
|
| Debentures Seven Point Nine Five Percent Due2017 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
7.95%
|
|
|
|
|
7.95%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 220
|
|
|
220
|
|
$ 220
|
220
|
|
220
|
| Senior Notes 8.125% due 2019 [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
8.125%
|
|
|
|
|
8.125%
|
|
|
|
| Unsecured Long-term Debt, Noncurrent |
|
$ 400
|
|
|
400
|
|
$ 400
|
400
|
|
400
|
| 2014 Credit Facility [Member] |
|
|
|
|
|
|
|
|
|
|
| Secured Long-term Debt, Noncurrent |
|
162
|
|
|
|
|
162
|
|
|
|
| 2016 Term Loan Facility [Member] |
|
|
|
|
|
|
|
|
|
|
| Secured Long-term Debt, Noncurrent |
|
1,677
|
1,688
|
|
|
|
1,677
|
|
|
|
| 2013 Term Loan Facility [Member] |
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Repurchased Face Amount |
|
|
$ 2,250
|
|
|
|
|
|
|
|
| Secured Long-term Debt, Noncurrent |
|
0
|
|
|
2,199
|
|
0
|
2,199
|
|
2,194
|
| 2014 Term Loan [Member] |
|
|
|
|
|
|
|
|
|
|
| Secured Long-term Debt, Noncurrent |
|
0
|
|
|
494
|
|
0
|
494
|
|
0
|
| Notes And Debentures Including Current Maturities [Member] |
|
|
|
|
|
|
|
|
|
|
| Total debt, excluding unamortized debt issuance costs, capital leases and note payable |
|
$ 4,837
|
|
|
$ 5,329
|
|
$ 4,837
|
$ 5,329
|
|
$ 4,830
|
|
|