XML 192 R85.htm IDEA: XBRL DOCUMENT v2.4.0.8
Derivative Financial Instruments (Hedges) (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 12 Months Ended 6 Months Ended
Jun. 30, 2013
Cash Flow Hedges [Member]
Dec. 31, 2012
Cash Flow Hedges [Member]
Jun. 30, 2012
Cash Flow Hedges [Member]
Jun. 30, 2013
Fair Value Hedges [Member]
Jun. 30, 2012
Fair Value Hedges [Member]
Unrealized net gains (losses) on cash flow hedges, after tax $ 11 $ 173      
Estimated amount in accumulated other comprehensive income expected to be reclassified within twelve months, after tax (46) (37)      
Pre-tax deferred gain from terminated fair value hedges       0 90
Pre-tax benefits from reductions of interest expense from previous hedge unwinds       44 164
Pre-tax Deferred Gain From Terminated Cash Flow Hedges Recorded In OCI $ 198   $ 0