Consolidated Statements of Changes in Stockholders Equity (Unaudited) (Parenthetical) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Common stock issued		$ 20.6
Tax on other comprehensive loss	89.0	296.5
Common Stock
Common stock issued		20.6
Additional Paid-in Capital
Common stock issued		20.6
Accumulated Other Comprehensive Income (Loss)
Tax on other comprehensive loss	$ 89.0	$ 296.5