Segment Reporting (Narrative) (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($) cases	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Loss Contingency Accrual, Provision	$ 5		$ 31	$ 48	$ 35
Pre-tax gain on sale of manufacturing facility	(4)		10	(4)	8
Engle Progeny Cases, Federal [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Loss Contingency Accrual, Provision	0		0	43	0
Engle Progeny Cases, Federal [Member] | Florida Engle [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Federal Engle Cases Resolved | cases		415
Engle Progeny Cases, Federal [Member] | Florida Engle [Member] | PM USA [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Loss Contingency Accrual, Provision		$ 43
Corporate Segment [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Loss Contingency Accrual, Provision	0		15	0	15
Smokeable Products [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Loss Contingency Accrual, Provision	$ 5		16	$ 48	$ 19
Manufacturing Optimization Plan [Member] | Smokeable Products [Member] | PM USA [Member]
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items]
Proceeds from Sale of Manufacturing Facility			66
Pre-tax gain on sale of manufacturing facility			$ 10