Annual report pursuant to Section 13 and 15(d)

Parent Company Information Parenthetical (Details)

v2.4.0.6
Parent Company Information Parenthetical (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2010
Dec. 31, 2011
Balance Sheet Related Disclosures [Abstract]      
Long-term borrowings, at fair value $ 30,875,000,000   $ 30,325,000,000
Common stock, par value $ 1.333   $ 1.333
Common stock, shares authorized 3,000,000,000   3,000,000,000
Common stock, shares issued 1,000   1,000
Supplemental Cash Flow Information [Abstract]      
Other Significant Noncash Transaction, Value of Consideration Received 1,100,000,000 1,000,000,000  
Parent [Member]
     
Balance Sheet Related Disclosures [Abstract]      
Long-term borrowings, at fair value $ 11,422,000,000   $ 13,389,000,000
Common stock, par value $ 1.333   $ 1.333
Common stock, shares authorized 3,000,000,000   3,000,000,000
Common stock, shares issued 1,000   1,000