XML 69 R54.htm IDEA: XBRL DOCUMENT v2.3.0.15
Capital Stock (Details) (USD $)
In Millions
1 Months Ended9 Months Ended
Oct. 31, 2011
Dec. 31, 2010
Sep. 30, 2011
Capital Stock   
Amount of authorized stock repurchase approved for continuation$ 150$ 150 
Approximate repurchase authority remaining under stock repurchase program for Indemnity  $ 14