v2.4.0.8
Changes in Balances of Accumulated Other Comprehensive Income by Component (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Equity And Accumulated Other Comprehensive Income [Line Items]        
Balance at January 1, 2014     $ 2,358  
Other comprehensive income (loss)     (28)  
Amounts reclassified to net income     (1,142)  
Other comprehensive loss attributable to Verizon (102) (62) (1,170) (241)
Balance at June 30, 2014 1,188   1,188  
Foreign currency translation adjustments
       
Equity And Accumulated Other Comprehensive Income [Line Items]        
Balance at January 1, 2014     853  
Other comprehensive income (loss)     (29)  
Amounts reclassified to net income     (911)  
Other comprehensive loss attributable to Verizon     (940)  
Balance at June 30, 2014 (87)   (87)  
Unrealized loss on cash flow hedges
       
Equity And Accumulated Other Comprehensive Income [Line Items]        
Balance at January 1, 2014     113  
Other comprehensive income (loss)     (21)  
Amounts reclassified to net income     (143)  
Other comprehensive loss attributable to Verizon     (164)  
Balance at June 30, 2014 (51)   (51)  
Unrealized gain on marketable securities
       
Equity And Accumulated Other Comprehensive Income [Line Items]        
Balance at January 1, 2014     117  
Other comprehensive income (loss)     22  
Amounts reclassified to net income     (10)  
Other comprehensive loss attributable to Verizon     12  
Balance at June 30, 2014 129   129  
Defined benefit pension and postretirement plans
       
Equity And Accumulated Other Comprehensive Income [Line Items]        
Balance at January 1, 2014     1,275  
Amounts reclassified to net income     (78)  
Other comprehensive loss attributable to Verizon     (78)  
Balance at June 30, 2014 $ 1,197   $ 1,197