v2.4.0.8
Loans and Allowance for Credit Losses, PCI, Accretable Yield (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 48 Months Ended
Jun. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Change in accretable yield related to PCI loans [Abstract]      
Total, beginning of period $ 17,965 $ 18,548 $ 10,447
Addition of accretable yield due to acquisitions 0 0 131
Accretion into interest income (458) (905) (9,351)
Accretion into noninterest income due to sales 0 (151) (242)
Reclassification from nonaccretable difference for loans with improving credit-related cash flows 876 907 5,354
Changes in expected cash flows that do not affect nonaccretable difference 1,638 1,622 12,209
Total, end of period $ 20,021 $ 20,021 $ 18,548