Contingencies (Judgments Recorded and Paid) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Loss Contingencies Judgments Recorded and Paid [Line Items]
Accrued liability for tobacco and health judgments at beginning of period	$ 6	$ 1	$ 0	$ 122
Pretax Tobacco and Health charges	0	1	5	1
Commitments and Contingencies Accrued Interest	0	0	1	0
Judgments Paid Aggregate	0	0	0	(121)
Accrued liability for tobacco and health judgments at end of period	$ 6	$ 2	$ 6	$ 2