|
Securities - Gross Unrealized Losses (Details) (USD $)
In Millions, unless otherwise specified
|
Dec. 31, 2013
Securities
|
Dec. 31, 2012
Securities
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
$ 154,358
|
[1],[2] |
$ 26,336
|
[1],[2] |
| Less than Twelve Months, Gross Unrealized Losses |
(5,791)
|
[1],[2] |
(279)
|
[1],[2] |
| Twelve Months or Longer, Fair Value |
14,839
|
[1],[2] |
16,314
|
[1],[2] |
| Twelve Months or Longer, Gross Unrealized Losses |
(760)
|
[1],[2] |
(381)
|
[1],[2] |
| Total, Fair Value |
169,197
|
[1],[2] |
42,650
|
[1],[2] |
| Total, Gross Unrealized Losses |
(6,551)
|
[1],[2] |
(660)
|
[1],[2] |
| Table Details [Abstract] |
|
|
|
|
| Number of Available for Sale Securities Amortized Cost Exceeds Fair Value |
4,700
|
|
2,600
|
|
| Available for Sale Securities Amortized Cost Exceeding Fair Value |
6,600
|
|
660
|
|
|
Temporarily Impaired [Member] | US Government Corporations and Agencies Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
5,770
|
|
0
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(61)
|
|
0
|
|
| Twelve Months or Longer, Fair Value |
19
|
|
5,608
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(1)
|
|
(84)
|
|
| Total, Fair Value |
5,789
|
|
5,608
|
|
| Total, Gross Unrealized Losses |
(62)
|
|
(84)
|
|
|
Temporarily Impaired [Member] | Debt Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
154,356
|
|
26,322
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(5,790)
|
|
(278)
|
|
| Twelve Months or Longer, Fair Value |
14,838
|
|
16,240
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(759)
|
|
(377)
|
|
| Total, Fair Value |
169,194
|
|
42,562
|
|
| Total, Gross Unrealized Losses |
(6,549)
|
|
(655)
|
|
|
Temporarily Impaired [Member] | Agency MBS [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
132,032
|
|
15,593
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(5,457)
|
|
(133)
|
|
| Twelve Months or Longer, Fair Value |
9,324
|
|
735
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(497)
|
|
(13)
|
|
| Total, Fair Value |
141,356
|
|
16,328
|
|
| Total, Gross Unrealized Losses |
(5,954)
|
|
(146)
|
|
|
Temporarily Impaired [Member] | Collateralized Mortgage Obligations [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
13,438
|
|
5,135
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(210)
|
|
(121)
|
|
| Twelve Months or Longer, Fair Value |
2,661
|
|
4,994
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(105)
|
|
(97)
|
|
| Total, Fair Value |
16,099
|
|
10,129
|
|
| Total, Gross Unrealized Losses |
(315)
|
|
(218)
|
|
|
Temporarily Impaired [Member] | Residential Mortgage Backed Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
819
|
|
592
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(15)
|
|
(13)
|
|
| Twelve Months or Longer, Fair Value |
1,237
|
|
1,555
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(106)
|
|
(110)
|
|
| Total, Fair Value |
2,056
|
|
2,147
|
|
| Total, Gross Unrealized Losses |
(121)
|
|
(123)
|
|
|
Temporarily Impaired [Member] | Commercial Mortgage Backed Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
286
|
|
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(12)
|
|
|
|
| Twelve Months or Longer, Fair Value |
0
|
|
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
0
|
|
|
|
| Total, Fair Value |
286
|
|
|
|
| Total, Gross Unrealized Losses |
(12)
|
|
|
|
|
Temporarily Impaired [Member] | Foreign Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
0
|
|
1,715
|
|
| Less than Twelve Months, Gross Unrealized Losses |
0
|
|
(1)
|
|
| Twelve Months or Longer, Fair Value |
45
|
|
563
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(24)
|
|
(5)
|
|
| Total, Fair Value |
45
|
|
2,278
|
|
| Total, Gross Unrealized Losses |
(24)
|
|
(6)
|
|
|
Temporarily Impaired [Member] | Corporate Bond Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
106
|
|
0
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(3)
|
|
0
|
|
| Twelve Months or Longer, Fair Value |
282
|
|
277
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(4)
|
|
(16)
|
|
| Total, Fair Value |
388
|
|
277
|
|
| Total, Gross Unrealized Losses |
(7)
|
|
(16)
|
|
|
Temporarily Impaired [Member] | Other Debt Obligations [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
116
|
|
1,678
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(2)
|
|
(1)
|
|
| Twelve Months or Longer, Fair Value |
280
|
|
1,436
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(3)
|
|
(14)
|
|
| Total, Fair Value |
396
|
|
3,114
|
|
| Total, Gross Unrealized Losses |
(5)
|
|
(15)
|
|
|
Temporarily Impaired [Member] | Taxable Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
152,567
|
|
24,713
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(5,760)
|
|
(269)
|
|
| Twelve Months or Longer, Fair Value |
13,848
|
|
15,168
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(740)
|
|
(339)
|
|
| Total, Fair Value |
166,415
|
|
39,881
|
|
| Total, Gross Unrealized Losses |
(6,500)
|
|
(608)
|
|
|
Temporarily Impaired [Member] | Tax-exempt securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
1,789
|
|
1,609
|
|
| Less than Twelve Months, Gross Unrealized Losses |
(30)
|
|
(9)
|
|
| Twelve Months or Longer, Fair Value |
990
|
|
1,072
|
|
| Twelve Months or Longer, Gross Unrealized Losses |
(19)
|
|
(38)
|
|
| Total, Fair Value |
2,779
|
|
2,681
|
|
| Total, Gross Unrealized Losses |
(49)
|
|
(47)
|
|
|
Other Than Temporarily Impaired [Member] | Residential Mortgage Backed Securities [Member]
|
|
|
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
|
|
| Less than Twelve Months, Fair Value |
2
|
[2] |
14
|
[2] |
| Less than Twelve Months, Gross Unrealized Losses |
(1)
|
[2] |
(1)
|
[2] |
| Twelve Months or Longer, Fair Value |
1
|
[2] |
74
|
[2] |
| Twelve Months or Longer, Gross Unrealized Losses |
(1)
|
[2] |
(4)
|
[2] |
| Total, Fair Value |
3
|
[2] |
88
|
[2] |
| Total, Gross Unrealized Losses |
$ (2)
|
[2] |
$ (5)
|
[2] |
|
|
|