|
Fair Values of Assets and Liabilities (Recurring basis) (Details) (Recurring Basis [Member], USD $)
In Thousands, unless otherwise specified
|
Jun. 30, 2013
|
Dec. 31, 2012
|
| Assets measured at fair value on a recurring basis |
|
|
| Mortgage loans held for sale |
$ 418,386
|
$ 452,949
|
| Trading account securities |
80,927
|
91,205
|
| Available-for-sale and other securities |
6,499,486
|
7,258,100
|
| Automobile loans |
91,140
|
142,762
|
| MSR's |
37,544
|
35,202
|
| Derivative assets |
248,782
|
385,697
|
| Liabilities measured at fair value on a recurring basis |
|
|
| Derivative liabilities |
139,497
|
152,188
|
| Other liabilities |
0
|
0
|
|
U.S. Treasury [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
51,778
|
52,311
|
|
Federal agencies - mortgage backed securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
3,502,077
|
4,264,670
|
|
Federal agencies: Other agencies [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
345,114
|
359,626
|
|
Municipal securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
5,668
|
15,218
|
| Available-for-sale and other securities |
571,663
|
501,000
|
|
Mortgage-backed Securities, Issued by Private Enterprises [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
52,834
|
71,568
|
|
Asset-backed Securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
1,180,930
|
1,029,083
|
|
Covered Bonds [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
286,911
|
290,625
|
|
Corporate debt [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
485,563
|
668,142
|
|
Other securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
75,259
|
75,987
|
| Available-for-sale and other securities |
22,616
|
21,075
|
|
Level 1 [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Mortgage loans held for sale |
0
|
0
|
| Trading account securities |
75,145
|
75,729
|
| Available-for-sale and other securities |
70,624
|
69,488
|
| Automobile loans |
0
|
0
|
| MSR's |
0
|
0
|
| Derivative assets |
47,821
|
6,368
|
| Liabilities measured at fair value on a recurring basis |
|
|
| Derivative liabilities |
18,083
|
6,813
|
| Other liabilities |
0
|
0
|
|
Level 1 [Member] | U.S. Treasury [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
51,778
|
52,311
|
|
Level 1 [Member] | Federal agencies - mortgage backed securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Federal agencies: Other agencies [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Municipal securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Asset-backed Securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Covered Bonds [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Corporate debt [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 1 [Member] | Other securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
75,145
|
75,729
|
| Available-for-sale and other securities |
18,846
|
17,177
|
|
Level 2 [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Mortgage loans held for sale |
418,386
|
452,949
|
| Trading account securities |
5,782
|
15,476
|
| Available-for-sale and other securities |
6,217,975
|
6,968,572
|
| Automobile loans |
0
|
0
|
| MSR's |
0
|
0
|
| Derivative assets |
259,971
|
465,517
|
| Liabilities measured at fair value on a recurring basis |
|
|
| Derivative liabilities |
162,163
|
228,312
|
| Other liabilities |
0
|
0
|
|
Level 2 [Member] | U.S. Treasury [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 2 [Member] | Federal agencies - mortgage backed securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
3,502,077
|
4,264,670
|
|
Level 2 [Member] | Federal agencies: Other agencies [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
345,114
|
359,626
|
|
Level 2 [Member] | Municipal securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
5,668
|
15,218
|
| Available-for-sale and other securities |
513,563
|
439,772
|
|
Level 2 [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
19,908
|
22,793
|
|
Level 2 [Member] | Asset-backed Securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
1,061,069
|
919,046
|
|
Level 2 [Member] | Covered Bonds [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
286,911
|
290,625
|
|
Level 2 [Member] | Corporate debt [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
485,563
|
668,142
|
|
Level 2 [Member] | Other securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
114
|
258
|
| Available-for-sale and other securities |
3,770
|
3,898
|
|
Level 3 [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Mortgage loans held for sale |
0
|
0
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
210,887
|
220,040
|
| Automobile loans |
91,140
|
142,762
|
| MSR's |
37,544
|
35,202
|
| Derivative assets |
1,581
|
13,180
|
| Liabilities measured at fair value on a recurring basis |
|
|
| Derivative liabilities |
5,807
|
478
|
| Other liabilities |
0
|
0
|
|
Level 3 [Member] | U.S. Treasury [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 3 [Member] | Federal agencies - mortgage backed securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 3 [Member] | Federal agencies: Other agencies [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 3 [Member] | Municipal securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
58,100
|
61,228
|
|
Level 3 [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
32,926
|
48,775
|
|
Level 3 [Member] | Asset-backed Securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
119,861
|
110,037
|
|
Level 3 [Member] | Covered Bonds [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
|
0
|
|
Level 3 [Member] | Corporate debt [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Level 3 [Member] | Other securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Mortgage loans held for sale |
0
|
0
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
| Automobile loans |
0
|
0
|
| MSR's |
0
|
0
|
| Derivative assets |
(60,591)
|
(99,368)
|
| Liabilities measured at fair value on a recurring basis |
|
|
| Derivative liabilities |
(46,556)
|
(83,415)
|
| Other liabilities |
0
|
0
|
|
Netting Adjustments [Member] | U.S. Treasury [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Federal agencies - mortgage backed securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Federal agencies: Other agencies [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Municipal securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Asset-backed Securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Covered Bonds [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Corporate debt [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Available-for-sale and other securities |
0
|
0
|
|
Netting Adjustments [Member] | Other securities [Member]
|
|
|
| Assets measured at fair value on a recurring basis |
|
|
| Trading account securities |
0
|
0
|
| Available-for-sale and other securities |
$ 0
|
$ 0
|