Long-term debt outstanding was as follows: | | | | | | | | | | | | | | | | Principal Amount | | | | | | | Due Date | April 29, 2012 | | October 30, 2011 | | Stated Interest Rate | | Effective Interest Rate | | Interest Payment Dates | | (In millions) | | | | | | | June 15, 2016 | $ | 400 |
| | $ | 400 |
| | 2.650% | | 2.666% | | June 15, December 15 | October 15, 2017 | 200 |
| | 200 |
| | 7.125% | | 7.190% | | April 15, October 15 | June 15, 2021 | 750 |
| | 750 |
| | 4.300% | | 4.326% | | June 15, December 15 | June 15, 2041 | 600 |
| | 600 |
| | 5.850% | | 5.879% | | June 15, December 15 | Other debt | — |
| | 1 |
| | | | | | | | 1,950 |
| | 1,951 |
| | | | | | | Total unamortized discount | (4 | ) | | (4 | ) | | | | | | | Total long-term debt | $ | 1,946 |
| | $ | 1,947 |
| | | | | | |
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