Segment Information (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Segment	Mar. 31, 2013 Divested Business [Member] Corporate Benefit Funding [Member]	Mar. 31, 2013 Divested Business [Member] Corporate & Other [Member]
Segment Reporting [Abstract]
Number of segments	6
Segment Reporting Information [Line Items]
Prior Period Reclassification Adjustment		$ 5	$ 3
Prior Period Adjustment To Operating Earnings Tax Expense		$ 3	$ 2