Sale of Operations (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Assets:
Cash and investments	$ 213		$ 205
Deferred policy acquisition costs	107		110
Other assets	84		88
Total assets	404		403
Liabilities:
Accident and health reserves	262		264
Other liabilities	18		15
Total liabilities	280		279
Total revenues	159	164
Total costs and expenses	141	154
Operating earnings before income taxes	$ 18	$ 10