v2.4.0.6
Stock-Based Compensation (Narrative) (Details) (USD $)
In Billions, except Share data in Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Y
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Maximum number of shares available for awards under the Long-Term Incentive Plan 119.6
Percentage of fair market value of Verizon common stock on the grant date 100.00%
Period of stock option life following date of grant, in years 10
Vesting period of stock options, in years three
Restricted Stock Units And Performance Stock Units [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation expense related to the unvested portion of Verizon's RSUs and PSUs 0.7
Weighted-average period of unrecognized compensation expense related to the unvested portion of Verizon's RSUs and PSUs (in years) 2
Restricted Stock Units [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted average grant date fair value per unit 38.67