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Debt - Additional Information (Detail)
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Mar. 31, 2013
USD ($)
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Dec. 31, 2012
USD ($)
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Nov. 30, 2012
USD ($)
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Dec. 31, 2012
USD ($)
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Dec. 31, 2013
USD ($)
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Nov. 02, 2012
USD ($)
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Dec. 31, 2013
Bridge Loan
USD ($)
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Dec. 31, 2013
Four Year Credit Facility
USD ($)
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Jun. 30, 2013
Verizon Communications Notes
USD ($)
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Apr. 30, 2013
Verizon Communications Notes
USD ($)
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Dec. 31, 2012
Verizon Communications Notes
USD ($)
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Dec. 31, 2013
Fixed and Floating Rate Notes Issued Related to Wireless Transaction
Verizon Wireless
USD ($)
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Sep. 30, 2013
Fixed and Floating Rate Notes Issued Related to Wireless Transaction
Verizon Wireless
USD ($)
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Sep. 30, 2013
Floating Rate Notes Due 2016
Verizon Wireless
USD ($)
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Dec. 31, 2013
Floating Rate Notes Due 2016
Verizon Wireless
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Sep. 30, 2013
Floating Rate Notes Due 2018
Verizon Wireless
USD ($)
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Dec. 31, 2013
Floating Rate Notes Due 2018
Verizon Wireless
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Sep. 30, 2013
Notes Due 2016
Verizon Wireless
USD ($)
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Sep. 30, 2013
Notes Due 2018
Verizon Wireless
USD ($)
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Sep. 30, 2013
Notes Due 2020
Verizon Wireless
USD ($)
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Sep. 30, 2013
Notes Due 2023
Verizon Wireless
USD ($)
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Sep. 30, 2013
Notes Due 2033
Verizon Wireless
USD ($)
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Sep. 30, 2013
Notes Due 2043
Verizon Wireless
USD ($)
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Dec. 31, 2013
Fixed Rate Vendor Financing Facility
USD ($)
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Dec. 31, 2012
Fixed Rate Vendor Financing Facility
USD ($)
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Dec. 31, 2013
Reduction in Debt Borrowing Capacity
Bridge Loan
USD ($)
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Nov. 30, 2012
Notes Due Two Thousand And Fifteen
USD ($)
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Nov. 30, 2012
Notes Due Twenty Seventeen
USD ($)
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Nov. 30, 2012
Notes Due Twenty Twenty Two
USD ($)
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Nov. 30, 2012
Notes Due Twenty Forty Two
USD ($)
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Dec. 31, 2012
Notes 8.75 Percent
USD ($)
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Nov. 30, 2012
Notes 8.75 Percent
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Nov. 30, 2012
Notes 4.35%
USD ($)
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Dec. 31, 2012
Notes 4.35%
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Nov. 30, 2013
7.375% Verizon Wireless Note
USD ($)
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Nov. 30, 2013
6.50% Verizon Wireless Note
USD ($)
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Nov. 30, 2013
5.55% Notes due 2014
USD ($)
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Feb. 29, 2012
5.25% Verizon Wireless Note
USD ($)
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Jul. 31, 2012
7.0% Verizon Wireless Note
USD ($)
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Dec. 31, 2013
Verizon New York Inc Debentures
USD ($)
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Nov. 30, 2013
Verizon New York Inc Debentures
USD ($)
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Jun. 30, 2013
Verizon New York Inc Debentures
USD ($)
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May 31, 2013
Verizon New York Inc Debentures
USD ($)
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Jun. 30, 2013
Verizon Maryland LLC Debentures
USD ($)
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Oct. 30, 2013
October 31, 2013 Verizon New England Inc. Debentures
USD ($)
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Dec. 31, 2013
Verizon Delaware LLC Debentures
USD ($)
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Jan. 31, 2012
Verizon New Jersey Inc. Debentures
USD ($)
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Dec. 31, 2012
Verizon Virginia LLC Debentures, Series A
USD ($)
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Dec. 31, 2012
Other Telephone and Subsidiary Debentures
USD ($)
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Nov. 30, 2013
November 30, 2012 Verizon Communications Notes due 2039
USD ($)
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Dec. 31, 2012
December 31, 2012 Verizon Communications Notes due 2018
USD ($)
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Dec. 31, 2013
Guarantee Of Debentures And First Mortgage Bonds Of Operating Telephone Company Subsidiaries
USD ($)
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Dec. 31, 2013
Guarantee of Debt Obligations of GTE Corporation
USD ($)
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Oct. 24, 2013
Term Loan Agreement
USD ($)
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Oct. 24, 2013
Term Loan Agreement
Maximum
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Oct. 24, 2013
Term Loan Agreement Maturity 3 Years
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Oct. 24, 2013
Term Loan Agreement Maturity 5 Years
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Dec. 31, 2013
Verizon Notes
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Feb. 27, 2014
Subsequent Event
USD ($)
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Feb. 27, 2014
Subsequent Event
2.375% Notes due 2022
EUR (€)
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Feb. 27, 2014
Subsequent Event
3.25% Notes due 2026
EUR (€)
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Feb. 27, 2014
Subsequent Event
4.75% Notes due 2034
GBP (£)
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Feb. 27, 2014
Subsequent Event
Notes Due Twenty Fifty Four
USD ($)
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Feb. 21, 2014
Subsequent Event
Verizon Notes
USD ($)
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Feb. 21, 2014
Subsequent Event
Verizon Notes
Verizon Wireless
USD ($)
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Feb. 21, 2014
Subsequent Event
Verizon Notes due February 21, 2022
Verizon Wireless
USD ($)
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Feb. 21, 2014
Subsequent Event
Verizon Notes due February 21, 2025
Verizon Wireless
USD ($)
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Oct. 24, 2013
364-Day Revolving Credit Agreement
USD ($)
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Oct. 24, 2013
364-Day Revolving Credit Agreement
Maximum
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| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Weighted average interest rate of commercial paper | 0.40% | 0.40% | 0.20% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Borrowing capacity of term loan agreement | $ 6,200,000,000 | $ 6,600,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Credit facility, maturity date | Aug. 12, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amount of unused borrowing capacity on four-year credit facility | 6,100,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amount of borrowing under revolving credit agreement | 2,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leverage ratio | 350.00% | 350.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Aggregate principal amount | 500,000,000 | 4,500,000,000 | 1,250,000,000 | 49,000,000,000 | 2,250,000,000 | 1,750,000,000 | 4,250,000,000 | 4,750,000,000 | 4,000,000,000 | 11,000,000,000 | 6,000,000,000 | 15,000,000,000 | 1,000,000,000 | 500,000,000 | 1,750,000,000 | 1,250,000,000 | 1,250,000,000 | 2,000,000,000 | 1,750,000,000 | 1,250,000,000 | 850,000,000 | 500,000,000 | 5,000,000,000 | 5,000,000,000 | 2,500,000,000 | 2,500,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Debt instrument maturity date | 2015 | 2039 | February 2013 | 2016 | 2018 | 2016 | 2018 | 2020 | 2023 | 2033 | 2043 | 2015 | 2017 | 2022 | 2042 | November 2018 | February 2013 | December 2033 | November 2023 | May 2023 | December 2023 | March 2013 | 2039 | 2018 | 2022 | 2026 | 2034 | 2054 | |||||||||||||||||||||||||||||||||||||||||
| Cash proceeds from issuance of debt, net of discounts and issuance costs | 500,000,000 | 4,470,000,000 | 48,700,000,000 | 5,400,000,000 | 500,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amount of notes repaid | 900,000,000 | 500,000,000 | 1,250,000,000 | 750,000,000 | 700,000,000 | 750,000,000 | 1,250,000,000 | 200,000,000 | 3,500,000,000 | 800,000,000 | 800,000,000 | 200,000,000 | 300,000,000 | 100,000,000 | 100,000,000 | 250,000,000 | 300,000,000 | 20,000,000 | 1,000,000,000 | 1,000,000,000 | 200,000,000 | 900,000,000 | 700,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||
| Stated interest rate on debt instrument | 8.95% | 4.375% | 5.25% | 4.35% | 2.50% | 3.65% | 4.50% | 5.15% | 6.40% | 6.55% | 0.70% | 1.10% | 2.45% | 3.85% | 8.75% | 4.35% | 7.375% | 6.50% | 5.55% | 5.25% | 7.00% | 7.00% | 6.70% | 7.00% | 7.00% | 7.15% | 4.75% | 7.00% | 5.875% | 4.625% | 8.95% | 8.75% | 2.375% | 3.25% | 4.75% | 5.90% | |||||||||||||||||||||||||||||||||
| Debt instrument, marginal rate | 1.53% | 1.75% | 1.222% | 1.372% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt instrument, description of variable rate basis | LIBOR plus 1.53% | LIBOR plus 1.75% | Three-month LIBOR, plus 1.222% | Three-month LIBOR, plus 1.372% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest expense on debt related to the Wireless Transaction | 700,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fixed rate vendor financing facility | 200,000,000 | 200,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quarterly interest payment start date | May 21, 2014 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt instrument maturity date | Feb. 01, 2014 | Feb. 21, 2022 | Feb. 21, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt instrument maturity period | 3 years | 5 years | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amount of borrowing capacity under bridge credit agreement | 61,000,000,000 | 12,000,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related fees for termination of bridge credit agreement | 200,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Redemption price of notes percentage | 186.50% | 100.70% | 140.20% | 100.00% | 100.00% | 100.00% | 100.00% | 101.10% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Borrowings under the credit facility | 350,000,000 | 350,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Redemption price of notes percentage | 101.00% | 100.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt redemption costs | 300,000,000 | 800,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Cost | 300,000,000 | 276,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Principal amount outstanding in connection with the guarantee of debt obligations | $ 51,987,000,000 | $ 51,987,000,000 | $ 93,591,000,000 | $ 3,100,000,000 | $ 1,700,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||