Long-Term Debt and Revolving Promissory Note (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Long-term debt
Long-term debt, gross	$ 7,346
Capital lease and other obligations	17	$ 32
Unamortized premiums, net	16	36
Unamortized debt issuance costs	(123)	(110)
Total long-term debt	7,239	7,269
Less current maturities	(242)	(117)
Long-term debt, excluding current maturities	6,997	7,152
Revolving promissory note
Note payable - affiliate	855	796
Senior notes
Long-term debt
Long-term debt, gross	$ 7,229	7,311
Senior notes \| Minimum
Long-term debt
Interest rate, stated percentage (as a percent)	6.125%
Senior notes \| Maximum
Long-term debt
Interest rate, stated percentage (as a percent)	8.375%
Term loan
Long-term debt
Long-term debt, gross	$ 100	0
Term loan interest rate at period end (as a percent)	2.18%
Revolving promissory note \| Revolving promissory note \| CenturyLink, Inc. affiliate \| Qwest Corporation
Revolving promissory note
Short-term debt, weighted average interest rate (as a percent)	6.758%
Note payable - affiliate	$ 855	$ 796
Maximum borrowing capacity, note payable-affiliate	1,000
Accrued interest payable. note payable-affiliate	$ 5

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. Includes other obligations.

No definition available.