Annual report pursuant to Section 13 and 15(d)

Transactions with Related Parties (Details)

v2.4.0.6
Transactions with Related Parties (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2009
Transactions with Related Parties [Abstract]    
Related Party Transaction, Revenues from Transactions with Related Party   $ 303
Related Party Costs $ 2 $ 40