Segment Reporting Schedule of Pre-tax Tobacco and Health Litigation Items (Details) - Tobacco and Health Litigation Cases [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Provision related to litigation recorded	$ 67	$ 4	$ 115	$ 39
Operating Income (Loss) [Member] | Operating Segments [Member] | Smokeable Products [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Provision related to litigation recorded	54	3	102	22
General Corporate Expense [Member] | Segment Reconciling Items [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Provision related to litigation recorded	0	0	0	15
Interest And Other Debt Expense, Net [Member] | Segment Reconciling Items [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Provision related to litigation recorded	$ 13	$ 1	$ 13	$ 2