Quarterly report pursuant to Section 13 or 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
Sep. 30, 2017
Dec. 31, 2016
Available-for-sale Debt Securities:    
Amortized Cost $ 300,817  
Amortized Cost   $ 296,579
Gross Unrealized Gains 1,627 1,280
Gross Unrealized Losses (2,142) (3,300)
Debt securities carried at fair value 300,302  
Fair Value   294,559
Less: Available-for-sale securities of business held for sale   (619)
Other Debt Securities, Carried at Fair Value:    
Amortized Cost 16,265 19,748
Gross Unrealized Gains 345 121
Gross Unrealized Losses (48) (149)
Fair Value 16,562 19,720
Debt securities carried at fair value:    
Amortized Cost 317,082 315,708
Gross Unrealized Gains 1,972 1,401
Gross Unrealized Losses (2,190) (3,449)
Debt securities carried at fair value 316,864 313,660
Held-to-maturity Securities:    
Amortized Cost 122,345 117,071
Gross Unrealized Gains 267 248
Gross Unrealized Losses (1,427) (2,034)
Held-to-maturity, fair value 121,185 115,285
Debt securities:    
Amortized Cost 439,427 432,779
Gross Unrealized Gains 2,239 1,649
Gross Unrealized Losses (3,617) (5,483)
Fair Value 438,049 428,945
Nonperforming Financing Receivable    
Available-for-sale Debt Securities:    
Debt securities carried at fair value 121 121
FNMA    
Debt securities carried at fair value:    
Amortized Cost 165,100 156,400
Debt securities carried at fair value 164,200 154,400
FHLMC    
Debt securities carried at fair value:    
Amortized Cost 48,200 48,700
Debt securities carried at fair value 48,100 48,300
Other assets    
Available-for-sale Equity Securities:    
Amortized Cost 22 325
Gross Unrealized Gains 28 51
Gross Unrealized Losses 0 (1)
Fair Value 50 375
Agency    
Available-for-sale Debt Securities:    
Amortized Cost 196,530 190,809
Gross Unrealized Gains 850 640
Gross Unrealized Losses (1,186) (1,963)
Debt securities carried at fair value 196,194 189,486
Debt securities carried at fair value:    
Debt securities carried at fair value 196,194  
Agency-collateralized mortgage obligations    
Available-for-sale Debt Securities:    
Amortized Cost 7,021 8,296
Gross Unrealized Gains 73 85
Gross Unrealized Losses (45) (51)
Debt securities carried at fair value 7,049 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 7,054  
Commercial    
Available-for-sale Debt Securities:    
Amortized Cost 12,584 12,594
Gross Unrealized Gains 48 21
Gross Unrealized Losses (168) (293)
Debt securities carried at fair value 12,464 12,322
Debt securities carried at fair value:    
Debt securities carried at fair value 12,464  
Non-agency residential    
Available-for-sale Debt Securities:    
Amortized Cost 2,345 1,863
Gross Unrealized Gains 333 181
Gross Unrealized Losses (21) (31)
Debt securities carried at fair value 2,657 2,013
Other Debt Securities, Carried at Fair Value:    
Fair Value 3,058 $ 3,139
Debt securities carried at fair value:    
Debt securities carried at fair value $ 5,715  
Non-agency residential | Prime    
Available-for-sale Equity Securities:    
Available-for-sale securities, percent held by rating 70.00% 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 17.00% 21.00%
Mortgage-backed securities    
Available-for-sale Debt Securities:    
Amortized Cost $ 218,480 $ 213,562
Gross Unrealized Gains 1,304 927
Gross Unrealized Losses (1,420) (2,338)
Debt securities carried at fair value 218,364 212,151
Other Debt Securities, Carried at Fair Value:    
Fair Value 3,063 3,144
Debt securities carried at fair value:    
Debt securities carried at fair value 221,427  
U.S. Treasury and agency securities    
Available-for-sale Debt Securities:    
Amortized Cost 50,824 48,800
Gross Unrealized Gains 70 204
Gross Unrealized Losses (626) (752)
Debt securities carried at fair value 50,268 48,252
Debt securities carried at fair value:    
Debt securities carried at fair value 50,268  
Non-U.S. securities    
Available-for-sale Debt Securities:    
Amortized Cost 5,432  
Amortized Cost   6,372
Gross Unrealized Gains 9 13
Gross Unrealized Losses (1) (3)
Debt securities carried at fair value 5,440  
Fair Value   6,382
Other Debt Securities, Carried at Fair Value:    
Fair Value 13,260 16,336
Debt securities carried at fair value:    
Debt securities carried at fair value 18,700  
Other taxable securities, substantially all asset-backed securities    
Available-for-sale Debt Securities:    
Amortized Cost 6,964 10,573
Gross Unrealized Gains 77 64
Gross Unrealized Losses (3) (23)
Debt securities carried at fair value 7,038 10,614
Other Debt Securities, Carried at Fair Value:    
Fair Value 239 240
Debt securities carried at fair value:    
Debt securities carried at fair value 7,277  
Total taxable securities    
Available-for-sale Debt Securities:    
Amortized Cost 281,700  
Amortized Cost   279,307
Gross Unrealized Gains 1,460 1,208
Gross Unrealized Losses (2,050) (3,116)
Debt securities carried at fair value 281,110  
Fair Value   277,399
Debt securities carried at fair value:    
Debt securities carried at fair value 297,672  
Tax-exempt securities    
Available-for-sale Debt Securities:    
Amortized Cost 19,117 17,272
Gross Unrealized Gains 167 72
Gross Unrealized Losses (92) (184)
Debt securities carried at fair value 19,192 $ 17,160
Debt securities carried at fair value:    
Debt securities carried at fair value 19,192  
Debt securities    
Debt securities carried at fair value:    
Debt securities carried at fair value 316,864  
Available-for-sale Equity Securities:    
Shareholders’ equity (312)  
Accumulated other comprehensive income tax expense (benefit) $ (203)