Annual report pursuant to Section 13 and 15(d)

Long-term Debt - Trust Preferred and Hybrid Securities (Details)

v3.6.0.2
Long-term Debt - Trust Preferred and Hybrid Securities (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 29, 2015
Debt Instrument [Line Items]        
Net interest income $ (41,096) $ (38,958) $ (40,779)  
Junior subordinated notes (related to trust preferred securities)        
Debt Instrument [Line Items]        
Interest payment deferral period (not to exceed) 5 years      
Carrying value $ 4,773      
Junior subordinated notes (related to trust preferred securities) | Capital Trust III, Capital Trust IV and Capital Trust V        
Debt Instrument [Line Items]        
Carrying value       $ 2,000
Net interest income   $ 612