Annual report pursuant to Section 13 and 15(d)

Securities - Debt Securities and Available-for-Sale Marketable Equity Securities (Details)

v3.8.0.1
Securities - Debt Securities and Available-for-Sale Marketable Equity Securities (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Available-for-sale Debt Securities:    
Amortized Cost $ 304,671  
Amortized Cost   $ 296,579
Gross Unrealized Gains 1,078 1,280
Gross Unrealized Losses (3,118) (3,300)
Fair Value 302,631  
Fair Value   294,559
Less: Available-for-sale securities of business held for sale   (619)
Other Debt Securities, Carried at Fair Value:    
Amortized Cost 12,273 19,748
Gross Unrealized Gains 252 121
Gross Unrealized Losses (39) (149)
Fair Value 12,486 19,720
Debt securities carried at fair value:    
Amortized Cost 316,944 315,708
Gross Unrealized Gains 1,330 1,401
Gross Unrealized Losses (3,157) (3,449)
Debt securities carried at fair value 315,117 313,660
Held-to-maturity Securities:    
Amortized Cost 125,013 117,071
Gross Unrealized Gains 111 248
Gross Unrealized Losses (1,825) (2,034)
Held-to-maturity, fair value 123,299 115,285
Debt securities:    
Amortized Cost 441,957 432,779
Gross Unrealized Gains 1,441 1,649
Gross Unrealized Losses (4,982) (5,483)
Fair Value 438,416 428,945
Nonperforming Financing Receivable    
Available-for-sale Debt Securities:    
Fair Value 99 121
FNMA    
Debt securities carried at fair value:    
Amortized Cost 163,600 156,400
Debt securities carried at fair value 162,100 154,400
FHLMC    
Debt securities carried at fair value:    
Amortized Cost 50,300 48,700
Debt securities carried at fair value 50,000 48,300
Other assets    
Available-for-sale Equity Securities:    
Amortized Cost 27 325
Gross Unrealized Gains 0 51
Gross Unrealized Losses (2) (1)
Fair Value 25 375
Mortgage-backed securities    
Available-for-sale Debt Securities:    
Amortized Cost 217,239 213,562
Gross Unrealized Gains 840 927
Gross Unrealized Losses (1,993) (2,338)
Fair Value 216,086 212,151
Other Debt Securities, Carried at Fair Value:    
Fair Value 2,769 3,144
Debt securities carried at fair value:    
Debt securities carried at fair value 218,855  
Agency    
Available-for-sale Debt Securities:    
Amortized Cost 194,119 190,809
Gross Unrealized Gains 506 640
Gross Unrealized Losses (1,696) (1,963)
Fair Value 192,929 189,486
Debt securities carried at fair value:    
Debt securities carried at fair value 192,929  
Agency-collateralized mortgage obligations    
Available-for-sale Debt Securities:    
Amortized Cost 6,846 8,296
Gross Unrealized Gains 39 85
Gross Unrealized Losses (81) (51)
Fair Value 6,804 8,330
Other Debt Securities, Carried at Fair Value:    
Fair Value 5 5
Debt securities carried at fair value:    
Debt securities carried at fair value 6,809  
Commercial    
Available-for-sale Debt Securities:    
Amortized Cost 13,864 12,594
Gross Unrealized Gains 28 21
Gross Unrealized Losses (208) (293)
Fair Value 13,684 12,322
Debt securities carried at fair value:    
Debt securities carried at fair value 13,684  
Non-agency residential    
Available-for-sale Debt Securities:    
Amortized Cost 2,410 1,863
Gross Unrealized Gains 267 181
Gross Unrealized Losses (8) (31)
Fair Value 2,669 2,013
Other Debt Securities, Carried at Fair Value:    
Fair Value 2,764 $ 3,139
Debt securities carried at fair value:    
Debt securities carried at fair value $ 5,433  
Non-agency residential | Prime    
Available-for-sale Equity Securities:    
Available-for-sale securities, percent held by rating 62.00% 60.00%
Non-agency residential | Alt-A    
Available-for-sale Equity Securities:    
Available-for-sale securities, percent held by rating 13.00% 19.00%
Non-agency residential | Subprime    
Available-for-sale Equity Securities:    
Available-for-sale securities, percent held by rating 25.00% 21.00%
U.S. Treasury and agency securities    
Available-for-sale Debt Securities:    
Amortized Cost $ 54,523 $ 48,800
Gross Unrealized Gains 18 204
Gross Unrealized Losses (1,018) (752)
Fair Value 53,523 48,252
Debt securities carried at fair value:    
Debt securities carried at fair value 53,523  
Non-U.S. securities    
Available-for-sale Debt Securities:    
Amortized Cost 6,669  
Amortized Cost   6,372
Gross Unrealized Gains 9 13
Gross Unrealized Losses (1) (3)
Fair Value 6,677  
Fair Value   6,382
Other Debt Securities, Carried at Fair Value:    
Fair Value 9,488 16,336
Debt securities carried at fair value:    
Debt securities carried at fair value 16,165  
Other taxable securities, substantially all asset-backed securities    
Available-for-sale Debt Securities:    
Amortized Cost 5,699 10,573
Gross Unrealized Gains 73 64
Gross Unrealized Losses (2) (23)
Fair Value 5,770 10,614
Other Debt Securities, Carried at Fair Value:    
Fair Value 229 240
Debt securities carried at fair value:    
Debt securities carried at fair value 5,999  
Total taxable securities    
Available-for-sale Debt Securities:    
Amortized Cost 284,130  
Amortized Cost   279,307
Gross Unrealized Gains 940 1,208
Gross Unrealized Losses (3,014) (3,116)
Fair Value 282,056  
Fair Value   277,399
Debt securities carried at fair value:    
Debt securities carried at fair value 294,542  
Tax-exempt securities    
Available-for-sale Debt Securities:    
Amortized Cost 20,541 17,272
Gross Unrealized Gains 138 72
Gross Unrealized Losses (104) (184)
Fair Value 20,575 $ 17,160
Debt securities carried at fair value:    
Debt securities carried at fair value 20,575  
Debt securities    
Debt securities carried at fair value:    
Debt securities carried at fair value 315,117  
Available-for-sale Equity Securities:    
Shareholders’ equity (1,200)  
Accumulated other comprehensive income tax expense (benefit) $ (872)