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Outstanding Long-Term Debt Obligations (Detail) (USD $) In Millions, unless otherwise specified
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Capital lease obligations (average rate of 4.0% and 8.1% in 2014 and 2013, respectively) |
$ 516us-gaap_CapitalLeaseObligations |
$ 293us-gaap_CapitalLeaseObligations |
| Unamortized discount, net of premium |
(2,954)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet |
(264)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet |
| Total long-term debt, including current maturities |
112,933us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities |
93,144us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities |
| Less long-term debt maturing within one year |
2,397us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent |
3,486us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent |
| Total long-term debt |
110,536us-gaap_LongTermDebtAndCapitalLeaseObligations |
89,658us-gaap_LongTermDebtAndCapitalLeaseObligations |
| Verizon Communications | 0.30% - 3.85% Notes Payable And Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
0.30%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_ZeroPointThreeZeroToThreePointEightFivePercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Interest rate range, maximum |
3.85%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_ZeroPointThreeZeroToThreePointEightFivePercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Maturity date range, start |
2015 |
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| Maturity date range, end |
2042 |
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| Notes payable and other |
27,617us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_ZeroPointThreeZeroToThreePointEightFivePercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
20,416us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_ZeroPointThreeZeroToThreePointEightFivePercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
| Verizon Communications | 4.15% - 5.50% Notes Payable And Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
4.15%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_FourPointOneFivePercentageToFivePointFiveZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Interest rate range, maximum |
5.50%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_FourPointOneFivePercentageToFivePointFiveZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Maturity date range, start |
2018 |
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| Maturity date range, end |
2054 |
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| Notes payable and other |
40,701us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FourPointOneFivePercentageToFivePointFiveZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
20,226us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FourPointOneFivePercentageToFivePointFiveZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
| Verizon Communications | 5.85% - 6.90% Notes Payable And Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
5.85%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_FivePointEightFivePercentageToSixPointNineZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Interest rate range, maximum |
6.90%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_FivePointEightFivePercentageToSixPointNineZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Maturity date range, start |
2018 |
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| Maturity date range, end |
2054 |
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| Notes payable and other |
24,341us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FivePointEightFivePercentageToSixPointNineZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
31,965us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FivePointEightFivePercentageToSixPointNineZeroPercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
| Verizon Communications | 7.35% - 8.95% Notes Payable And Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
7.35%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeFivePercentageToEightPointNineFivePercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Interest rate range, maximum |
8.95%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeFivePercentageToEightPointNineFivePercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
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| Maturity date range, start |
2018 |
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| Maturity date range, end |
2039 |
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| Notes payable and other |
2,264us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeFivePercentageToEightPointNineFivePercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
5,023us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeFivePercentageToEightPointNineFivePercentageNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
| Verizon Communications | Floating Notes Payable And Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Maturity date range, start |
2015 |
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| Maturity date range, end |
2025 |
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| Notes payable and other |
14,600us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FloatingNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
5,500us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FloatingNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonCommunicationsMember |
| Verizon Wireless | 8.75% - 8.88% Notes Payable and Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
8.75%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_EightPointSevenFiveToEightPointEightEightPercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
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| Interest rate range, maximum |
8.88%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_EightPointSevenFiveToEightPointEightEightPercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
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| Maturity date range, start |
2015 |
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| Maturity date range, end |
2018 |
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| Notes payable and other |
676us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_EightPointSevenFiveToEightPointEightEightPercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
3,931us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_EightPointSevenFiveToEightPointEightEightPercentNotesPayableAndOtherMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
| Verizon Wireless | 6.80% - 7.88% Alltel assumed notes |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
6.80%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_SixPointEightZeroPercentageToSevenPointEightEightPercentageAssumedNotesMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
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| Interest rate range, maximum |
7.88%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_SixPointEightZeroPercentageToSevenPointEightEightPercentageAssumedNotesMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
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| Maturity date range, start |
2029 |
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| Maturity date range, end |
2032 |
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| Notes payable and other |
686us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SixPointEightZeroPercentageToSevenPointEightEightPercentageAssumedNotesMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
1,300us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SixPointEightZeroPercentageToSevenPointEightEightPercentageAssumedNotesMember / dei_LegalEntityAxis = vz_VerizonWirelessMember |
| Telephone Subsidiaries | 5.13% - 6.86% Debentures |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
5.13%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_FivePointOneThreeToSixPointEightSixPercentDebentureMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
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| Interest rate range, maximum |
6.86%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_FivePointOneThreeToSixPointEightSixPercentDebentureMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
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| Maturity date range, start |
2027 |
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| Maturity date range, end |
2033 |
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| Notes payable and other |
1,075us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FivePointOneThreeToSixPointEightSixPercentDebentureMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
1,075us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_FivePointOneThreeToSixPointEightSixPercentDebentureMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
| Telephone Subsidiaries | 7.38% - 7.88% Debentures |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
7.38%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeEightPercentageToSevenPointEightEightPercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
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| Interest rate range, maximum |
7.88%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeEightPercentageToSevenPointEightEightPercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
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| Maturity date range, start |
2022 |
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| Maturity date range, end |
2032 |
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| Notes payable and other |
1,099us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeEightPercentageToSevenPointEightEightPercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
1,099us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SevenPointThreeEightPercentageToSevenPointEightEightPercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
| Telephone Subsidiaries | 8.00% - 8.75% Debentures |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
8.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_EightPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
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| Interest rate range, maximum |
8.75%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_EightPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
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| Maturity date range, start |
2019 |
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| Maturity date range, end |
2031 |
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| Notes payable and other |
880us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_EightPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
880us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_EightPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_TelephoneSubsidiariesMember |
| Other Subsidiaries | 6.84% - 8.75% Debentures And Other |
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| Schedule of Capitalization, Long-term Debt [Line Items] |
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| Interest rate range, minimum |
6.84%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = vz_SixPointEightFourPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_OtherSubsidiariesMember |
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| Interest rate range, maximum |
8.75%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = vz_SixPointEightFourPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_OtherSubsidiariesMember |
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| Maturity date range, start |
2018 |
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| Maturity date range, end |
2028 |
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| Notes payable and other |
$ 1,432us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SixPointEightFourPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_OtherSubsidiariesMember |
$ 1,700us-gaap_NotesPayable / us-gaap_DebtInstrumentAxis = vz_SixPointEightFourPercentageToEightPointSevenFivePercentageDebenturesMember / dei_LegalEntityAxis = vz_OtherSubsidiariesMember |