Shareholders Equity and Dividend Restrictions (Tables)

12 Months Ended

Dec. 31, 2011

Shareholders Equity And Dividend Restrictions Tables [Abstract]

Schedule of statutory net income and surplus

(In millions)	2011		2010		2009
Net income	$	953	$	1,697	$	1,088
Surplus	$	5,286	$	5,107	$	4,728