Contingencies Contingencies (Judgments Recorded and Paid) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Loss Contingency Accrual [Roll Forward]
Accrued liability for tobacco and health litigation items at beginning of period	$ 77	$ 38	$ 34	$ 39	$ 3
Payments	(3)		0	(13)	(4)
Accrued liability for tobacco and health litigation items at end of period	141	$ 39	38	141	38
Interest Expense Related To Litigation [Member]
Loss Contingency Accrual [Roll Forward]
Pre-tax charges	13		1	13	2
Implementation of Corrective Communications [Member]
Loss Contingency Accrual [Roll Forward]
Pre-tax charges	0		0	0	31
Tobacco and Health Judgment [Member] | Litigation Cases Results [Member]
Loss Contingency Accrual [Roll Forward]
Pre-tax charges	54		3	59	6
Engle Progeny Cases, Federal [Member] | Litigation Cases Results [Member]
Loss Contingency Accrual [Roll Forward]
Pre-tax charges	$ 0		$ 0	$ 43	$ 0