v3.3.1.900

Debt Debt (First Lien Notes) (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Mar. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Long-term Debt |  | $ 11,292 |  | $ 11,122
2022 First Lien Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term Debt |  | $ 746 |  | $ 745
Debt Instrument, Interest Rate, Effective Percentage | [1] | 6.30% |  | 6.30%
First Lien Notes 2023 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term Debt | [2] | $ 573 |  | $ 840
Debt Instrument, Interest Rate, Effective Percentage | [1] | 8.00% |  | 8.00%
2024 First Lien Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term Debt |  | $ 490 |  | $ 490
Debt Instrument, Interest Rate, Effective Percentage | [1] | 6.00% |  | 6.00%
Corporate Debt Securities [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term Debt |  | $ 1,809 |  | $ 2,075
Early Redemption Amount [Member] | First Lien Notes 2023 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term Debt |  |  | $ 147 |
[1] | Our weighted average interest rate calculation includes the amortization of deferred financing costs and debt discount.
[2] | On February 3, 2015, we repurchased approximately $147 million of our 2023 First Lien Notes with the proceeds from our 2024 Senior Unsecured Notes, as described in further detail above. In December 2015, we used cash on hand to redeem 10% of the original aggregate principal amount of our 2023 First Lien Notes, plus accrued and unpaid interest. During the fourth quarter of 2015, we recorded approximately $7 million in debt extinguishment costs related to the partial repurchase of our 2023 First Lien Notes.

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
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