v2.4.0.8
SHARE-BASED COMPENSATION (DETAILS) (USD $)
 3 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
employee
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Restricted Stock And Restricted Stock Units RSU [Member]
Dec. 31, 2012
Restricted Stock And Restricted Stock Units RSU [Member]
Jun. 30, 2013
Restricted Stock And Restricted Stock Units RSU [Member]
Performance [Member]
Jun. 30, 2013
Restricted Stock And Restricted Stock Units RSU [Member]
Service [Member]
Reconcilation of Beginning and Ending Balance of Nonvested Restricted Stock (including RSUs) [Line Items]                
Nonvested restricted stock (number) - beginning of period             250,000 4,429,000
Granted (number)             0 953,000
Vested (number)             0 (1,688,000)
Forfeited (number)             0 (82,000)
Nonvested restricted stock (number) - end of period             250,000 3,612,000
Weighted average grant date fair value - beginning of period             $ 34.42 $ 32.48
Weighted average grant date fair value - granted             $ 0.00 $ 39.20
Weighted average grant date fair value - vested             $ 0.00 $ 32.03
Weighted average grant date fair value - forfeited             $ 0.00 $ 33.78
Weighted average grant date fair value - end of period             $ 34.42 $ 34.52
Share based compensation expense incurred $ 17,000,000 $ 33,000,000 $ 31,000,000 $ 45,000,000        
Tax benefit related to share-based compensation costs incurred 3,000,000 3,000,000 6,000,000 5,000,000        
Accelerated and incremental share-based compensation expense related to senior management transitions   20,000,000            
Number of employees impacted by restricted stock award modifications during the period   1            
Fair value - vested during period     67,000,000 40,000,000        
Unrecognized share-based compensation costs 124,000,000   124,000,000          
Unrecognized share-based compensation costs - weighted average period expected to be recognized     3 years          
Number of restricted stock and restricted stock units granted which will settle in cash         793,500      
Liability for cash-settled units         $ 4,000,000 $ 0