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Condensed Consolidated Statements of Income (Parenthetical) (USD $)
In Millions
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Total other-than-temporary impairment losses$ 2$ 0$ 13$ 41
Other-than-temporary impairment losses recognized in other comprehensive income$ (11)$ (3)$ (9)$ 22