The number of lenders of the revolving line of credit.

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

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-Publisher SEC

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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- Definition

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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- Definition

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

+ References

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- Definition

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

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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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

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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Long-Term Debt and Credit Facilities Long-Term Debt and Credit Facilities (Details 2) $ in Millions					6 Months Ended
	Jun. 15, 2015 USD ($)	Mar. 19, 2015 USD ($)	Feb. 20, 2015 USD ($)	Feb. 17, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Feb. 15, 2015	Jan. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Long-term Debt and Credit Facilities
Repayments of debt					$ 506	$ 121
CenturyLink, Inc. \| Senior notes
Long-term Debt and Credit Facilities
Long-term debt, gross					7,975				$ 7,825
CenturyLink, Inc. \| Senior notes \| 5.625% Notes due 2025
Long-term Debt and Credit Facilities
Debt instrument, face amount		$ 500
Stated interest rate (percent)		5.625%
Proceeds from debt, net of issuance costs		$ 494
CenturyLink, Inc. \| Senior notes \| Series M 5.00% Notes
Long-term Debt and Credit Facilities
Repayments of debt				$ 350
Stated interest rate (percent)							5.00%
CenturyLink, Inc. \| Medium-term notes
Long-term Debt and Credit Facilities
Long-term debt, gross					369				380
CenturyLink, Inc. \| Line of credit
Long-term Debt and Credit Facilities
Long-term debt, gross					320				725
Line of credit facility, maximum borrowing capacity								$ 100
Lenders of revolving line of credit, number								1
Qwest Corporation \| Senior notes
Long-term Debt and Credit Facilities
Long-term debt, gross					7,219				7,311
Qwest Corporation \| Senior notes \| 7.625% Notes due 2015
Long-term Debt and Credit Facilities
Repayments of debt	$ 92
Stated interest rate (percent)	7.625%
Qwest Corporation \| Medium-term notes
Long-term Debt and Credit Facilities
Long-term debt, gross					100				$ 0
Qwest Corporation \| Medium-term notes \| Term Loan
Long-term Debt and Credit Facilities
Debt instrument, face amount			$ 100
Long-term debt, gross					$ 100
Minimum \| CenturyLink, Inc. \| Senior notes
Long-term Debt and Credit Facilities
Stated interest rate (percent)					5.15%
Minimum \| Qwest Corporation \| Senior notes
Long-term Debt and Credit Facilities
Stated interest rate (percent)					6.125%
Minimum \| London Interbank Offered Rate (LIBOR) \| Qwest Corporation \| Medium-term notes \| Term Loan
Long-term Debt and Credit Facilities
Basis spread on variable rate (percent)			1.50%
Minimum \| Base Rate \| Qwest Corporation \| Medium-term notes \| Term Loan
Long-term Debt and Credit Facilities
Basis spread on variable rate (percent)			0.50%
Maximum \| CenturyLink, Inc. \| Senior notes
Long-term Debt and Credit Facilities
Stated interest rate (percent)					7.65%
Maximum \| Qwest Corporation \| Senior notes
Long-term Debt and Credit Facilities
Stated interest rate (percent)					8.375%
Maximum \| London Interbank Offered Rate (LIBOR) \| Qwest Corporation \| Medium-term notes \| Term Loan
Long-term Debt and Credit Facilities
Basis spread on variable rate (percent)			2.50%
Maximum \| Base Rate \| Qwest Corporation \| Medium-term notes \| Term Loan
Long-term Debt and Credit Facilities
Basis spread on variable rate (percent)			1.50%