Indemnity Capital Stock (Details 2) - Indemnity - Class A - Stock repurchase program - USD ($) $ in Millions	Sep. 30, 2015	Oct. 31, 2011
Stock repurchases
Amount of authorized stock repurchases approved for continuation under the current program		$ 150
Approximate amount of repurchase authority remaining under the current stock repurchase program	$ 18

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