|
Consolidated Statement of Comprehensive Income (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Statement of Income and Comprehensive Income [Abstract] | |||
| Net income | $ 641,022 | $ 542,613 | $ 312,347 |
| Non-credit-related impairment losses (recoveries) on debt (equity) securities not expected to be sold, after-tax | 12,490 | 7,499 | 15,320 |
| Net change in unrealized holding gains (losses) on debt (equity) securities available for sale | 55,305 | 64,921 | (9,406) |
| Unrealized gains (losses) on cash flow hedging derivatives | 6,186 | 5,188 | (23,155) |
| Change in accumulated unrealized losses for pension and other postretirement obligations | (51,035) | (53,875) | (19,021) |
| Other Comprehensive Income (Loss), Net of Tax | 22,946 | 23,733 | (36,262) |
| Comprehensive Income | $ 663,968 | $ 566,346 | $ 276,085 |
| X | ||||||||||
|
- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net of tax amount of the appreciation (loss) in the value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net of tax and reclassification adjustments amount of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net of tax amount of other comprehensive income (loss) attributable to both parent entity and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net of tax and reclassifications amount of pension and other postretirement benefit plans (gain) loss included in accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net of tax amount of the income statement impact of the reclassification adjustment for unrealized (losses) realized upon the write-down of available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|