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

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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.

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No definition available.

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- Definition

Amount of interest capitalized during the period.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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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).

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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 - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2017	Apr. 18, 2012
Long-term debt
Note payable - affiliate	$ 1,069,000,000	$ 1,008,000,000
Interest	58,000,000	55,000,000
Note payable - affiliate \| Qwest Corporation \| Affiliated entity
Long-term debt
Debt instrument, face amount			$ 965,000,000	$ 1,000,000,000.0
Note payable - affiliate	$ 1,069,000,000	$ 1,008,000,000
Weighted average interest rate	5.843%
Interest costs capitalized	$ 104,000,000
Interest	$ 16,000,000