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Consolidated Statements of Comprehensive Income (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Net income (loss) $ 184.1 $ 249.2 $ 403.0 $ 458.0
Other comprehensive income (loss), net:        
Net unrealized gains (losses) on available-for-sale securities 100.7 146.7 262.0 322.1
Noncredit component of impairment losses on fixed maturities, available-for-sale (9.9) 9.0 (10.8) 26.3
Net unrealized gains (losses) on derivative instruments 48.9 (8.2) 45.4 (12.6)
Foreign currency translation adjustment (86.7) 49.7 (21.4) 71.5
Net unrecognized postretirement benefit obligation 8.8 (21.9) 17.5 27.3
Other comprehensive income (loss) 61.8 175.3 292.7 434.6
Comprehensive income (loss) 245.9 424.5 695.7 892.6
Comprehensive income (loss) attributable to noncontrolling interest 2.1 23.6 12.1 42.2
Comprehensive income (loss) attributable to Principal Financial Group, Inc. $ 243.8 $ 400.9 $ 683.6 $ 850.4