XML 61 R49.htm IDEA: XBRL DOCUMENT v3.5.0.2
Securities - Amortized Cost and Fair Value of Asset Backed Securities (Detail) - USD ($)
$ in Millions
Jun. 30, 2016
Dec. 31, 2015
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities $ 37,854 $ 35,961
Unrealized Gains, Available-for-sale securities 803 308
Unrealized Losses, Available-for-sale securities (233) (496)
Fair Value, Available-for-sale securities 38,424 35,773
Amortized Cost, Held-to-Maturity Securities 13,215 14,024
Unrealized Gains, Held-to-maturity securities 387 177
Unrealized Losses, Held-to-maturity securities (1) (36)
Held-to-maturity Securities, Fair Value 13,601 14,165
U.S. Treasury [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 19,987 17,026
Unrealized Gains, Available-for-sale securities 498 142
Unrealized Losses, Available-for-sale securities (162) (270)
Fair Value, Available-for-sale securities 20,323 16,898
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities [1] 2,471 1,451
Unrealized Gains, Available-for-sale securities [1] 45 2
Unrealized Losses, Available-for-sale securities [1] 0 (12)
Fair Value, Available-for-sale securities 2,516 [1] 1,441
Amortized Cost, Held-to-Maturity Securities [2] 2,741 2,945
Unrealized Gains, Held-to-maturity securities [2] 83 20
Unrealized Losses, Held-to-maturity securities [2] 0 (9)
Held-to-maturity Securities, Fair Value 2,824 [2] 2,956
Collateralized Mortgage Obligations, Issued by U.S. Government Sponsored Enterprises [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities [1] 2,286 159
Unrealized Gains, Available-for-sale securities [1] 8 0
Unrealized Losses, Available-for-sale securities [1] (7) (5)
Fair Value, Available-for-sale securities 2,287 [1] 154
Amortized Cost, Held-to-Maturity Securities [2] 1,593 1,755
Unrealized Gains, Held-to-maturity securities [2] 98 73
Unrealized Losses, Held-to-maturity securities [2] 0 (5)
Held-to-maturity Securities, Fair Value 1,691 [2] 1,823
Direct Agency Obligations U S Government Sponsored Enterprises [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities [1] 4,326 4,136
Unrealized Gains, Available-for-sale securities [1] 172 133
Unrealized Losses, Available-for-sale securities [1] (19) (26)
Fair Value, Available-for-sale securities 4,479 [1] 4,243
Mortgage-backed Securities, Issued or Guaranteed by US Government Agency [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 6,107 10,645
Unrealized Gains, Available-for-sale securities 48 9
Unrealized Losses, Available-for-sale securities (6) (145)
Fair Value, Available-for-sale securities 6,149 10,509
Amortized Cost, Held-to-Maturity Securities 2,956 3,269
Unrealized Gains, Held-to-maturity securities 74 19
Unrealized Losses, Held-to-maturity securities 0 (11)
Held-to-maturity Securities, Fair Value 3,030 3,277
Collateralized Mortgage Obligations, Issued or Guaranteed by US Government Agency [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 1,393 1,293
Unrealized Gains, Available-for-sale securities 30 11
Unrealized Losses, Available-for-sale securities (2) (4)
Fair Value, Available-for-sale securities 1,421 1,300
Amortized Cost, Held-to-Maturity Securities 5,902 6,029
Unrealized Gains, Held-to-maturity securities 130 63
Unrealized Losses, Held-to-maturity securities (1) (11)
Held-to-maturity Securities, Fair Value 6,031 6,081
Obligations of U.S. states and political subdivision [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 13 340
Unrealized Gains, Available-for-sale securities 0 8
Unrealized Losses, Available-for-sale securities 0 0
Fair Value, Available-for-sale securities 13 348
Amortized Cost, Held-to-Maturity Securities 17 19
Unrealized Gains, Held-to-maturity securities 1 1
Unrealized Losses, Held-to-maturity securities 0 0
Held-to-maturity Securities, Fair Value 18 20
Commercial mortgages [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 6 9
Unrealized Gains, Available-for-sale securities 0 0
Unrealized Losses, Available-for-sale securities 0 0
Fair Value, Available-for-sale securities 6 9
Home Equity [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 77 83
Unrealized Gains, Available-for-sale securities 0 0
Unrealized Losses, Available-for-sale securities (10) (8)
Fair Value, Available-for-sale securities 67 75
Other [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 517 110
Unrealized Gains, Available-for-sale securities 1 0
Unrealized Losses, Available-for-sale securities (25) (21)
Fair Value, Available-for-sale securities 493 89
Foreign debt securities [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities [3] 512 548
Unrealized Gains, Available-for-sale securities [3] 1 0
Unrealized Losses, Available-for-sale securities [3] (2) (2)
Fair Value, Available-for-sale securities 511 [3] 546
Equity securities [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 159 161
Unrealized Gains, Available-for-sale securities 0 3
Unrealized Losses, Available-for-sale securities 0 (3)
Fair Value, Available-for-sale securities 159 161
Residential Mortgages [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Held-to-Maturity Securities 6 7
Unrealized Gains, Held-to-maturity securities 1 1
Unrealized Losses, Held-to-maturity securities 0 0
Held-to-maturity Securities, Fair Value 7 8
US Government sponsored enterprises [Member] | Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 3,127 1,577
Amortized Cost, Held-to-Maturity Securities 2,948 3,182
US Government sponsored enterprises [Member] | Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]    
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]    
Amortized Cost, Available-for-sale securities 1,630 33
Amortized Cost, Held-to-Maturity Securities $ 1,386 $ 1,518
[1] Includes securities at amortized cost of $3,127 million and $1,577 million issued or guaranteed by FNMA at June 30, 2016 and December 31, 2015, respectively, and $1,630 million and $33 million issued or guaranteed by FHLMC at June 30, 2016 and December 31, 2015, respectively.
[2] Includes securities at amortized cost of $2,948 million and $3,182 million issued or guaranteed by FNMA at June 30, 2016 and December 31, 2015, respectively, and $1,386 million and $1,518 million issued and guaranteed by FHLMC at June 30, 2016 and December 31, 2015, respectively.
[3] Foreign debt securities represent public sector entity, bank or corporate debt.