Consolidated Statement Of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net Income	$ 191.1	$ 179.6	$ 355.1	$ 340.8
Other Comprehensive Income (Net of Tax and Reclassifications)
Net Unrealized Gains (Losses) on Securities Available for Sale	(81.5)	11.7	(80.2)	31.7
Net Unrealized Gains (Losses) on Cash Flow Hedges	2.1	(8.9)	(3.1)	2.4
Foreign Currency Translation Adjustments	5.8	(5.9)	1.6	9.9
Pension and Other Postretirement Benefit Adjustments	7.0	5.3	14.0	27.5
Other Comprehensive Income	(66.6)	2.2	(67.7)	71.5
Comprehensive Income	$ 124.5	$ 181.8	$ 287.4	$ 412.3