GENERAL (DETAIL) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Prior Period Adjustment Abstract
Prior Period Adjustment, Revenue, Pre Tax	$ 4	$ 2
Prior Period Adjustment, Revenue, After Tax	4	2
Prior Period Adjustment, Expense, Pre Tax		4
Prior Period Adjustment, Expense, After Tax		$ 5