v2.4.0.8
Consolidated Statement of Changes in Equity (Textuals) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Scenario, Forecast [Member]
 
Consolidated Statement of Changes in Equity (Textuals) [Abstract]  
Common stock repurchased, shares 13,000,000
Private Forward Repurchase Transaction [Member]
 
Consolidated Statement of Changes in Equity (Textuals) [Abstract]  
Private forward repurchase contract $ 500