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Stock-Based Compensation (Narrative) (Details) (USD $)
In Billions, except Share data in Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2011
years
Jun. 30, 2011
Restricted Stock Units and Performance Stock Units [Member]
Jun. 30, 2011
Restricted Stock Units [Member]
Dec. 31, 2010
Restricted Stock Units [Member]
Maximum number of shares available for awards under the Long-Term Incentive Plan 119.6      
Unrecognized compensation expense related to the unvested portion of Verizon's RSUs and PSUs   $ 0.6    
Weighted average period of unrecognized compensation expense related to the unvested portion of Verizon's RSUs and PSUs (in years)   2    
Weighted average grant date fair value     $ 36.38 $ 28.63
Percentage of fair market value of Verizon common stock on the grant date 100.00%      
Period of stock option life following date of grant 10      
Vesting period of stock options, in years three