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Consolidated Statements Of Comprehensive Income (Loss) (Parenthetical) (USD $)
In Millions
3 Months Ended6 Months Ended12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Dec. 31, 2009
Consolidated Statements Of Comprehensive Income (Loss)      
Net income attributable to the redeemable noncontrolling interests not included in equity$ 7.8$ 9.8$ 15.3$ 18.3$ 35.0$ 3.7