CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 293,462	$ 183,108	$ 733,305	$ 711,739
Other comprehensive income, net of tax and reclassification adjustments:
Net unrealized gains on investment securities	42,560	34,862	111,931	6,970
Reclassification to income for amortization of gains on terminated cash flow hedges		(70)	(112)	(211)
Foreign currency translation adjustment	482	(699)	351	(503)
Defined benefit plans liability adjustment	4,732	2,143	14,196	6,431
Total other comprehensive income	47,774	36,236	126,366	12,687
Total comprehensive income	$ 341,236	$ 219,344	$ 859,671	$ 724,426