Annual report pursuant to Section 13 and 15(d)

Business Segment Information - Consolidated Assets (Details)

v2.4.0.6
Business Segment Information - Consolidated Assets (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Segment Reporting Information [Line Items]    
Assets $ 2,209,974 [1] $ 2,129,046 [1]
Operating Segments [Member]
   
Segment Reporting Information [Line Items]    
Assets 1,962,690 1,808,555
Asset And Liability Management Activities [Member]
   
Segment Reporting Information [Line Items]    
Assets 622,722 611,793
Equity Investment Income [Member]
   
Segment Reporting Information [Line Items]    
Assets 5,508 7,098
Liquidating Businesses [Member]
   
Segment Reporting Information [Line Items]    
Assets 32,597 37,570
Intersegment Elimination [Member]
   
Segment Reporting Information [Line Items]    
Assets (554,426) (492,251)
Other Adjustment [Member]
   
Segment Reporting Information [Line Items]    
Assets $ 140,883 $ 156,281
[1] Total assets include long-lived assets, which are primarily located in the U.S.