Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Description of debt redemption features under terms of the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
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Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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- Definition

The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

No definition available.

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- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

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Long-Term Debt and Revolving Promissory Note (Details 2) - USD ($) $ in Millions	May 05, 2017	Apr. 28, 2017	Sep. 30, 2017	May 08, 2017	May 04, 2017	Dec. 31, 2016	Apr. 18, 2012
Long-term debt
Note payable - affiliate			$ 965			$ 914
Qwest Corporation \| Senior notes \| 6.75% Notes due 2057
Long-term debt
Debt instrument, face amount	$ 85	$ 575
Stated interest rate (percent)		6.75%
Proceeds from debt, net of issuance costs	$ 638
Qwest Corporation \| Senior notes \| 7.5% Notes due 2051
Long-term debt
Debt instrument, face amount				$ 288
Stated interest rate (percent)				7.50%
Debt instrument, repurchased face amount				$ 125
Qwest Corporation \| Senior notes \| 6.5% Notes due 2017
Long-term debt
Stated interest rate (percent)					6.50%
Debt instrument, repurchased face amount					$ 500
Qwest Corporation \| Affiliated entity \| Loans payable
Long-term debt
Debt instrument, face amount			965				$ 1,000
Note payable - affiliate			$ 965			$ 914
Weighted average interest rate (percent)			6.71%
Qwest Corporation \| Debt instrument, redemption, period one \| Senior notes \| 6.75% Notes due 2057
Long-term debt
Debt instrument, redemption, description		redeemed by Qwest Corporation, in whole or in part, on or after June 15, 2022, at a redemption price equal to 100% of the principal amount redeemed