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Segment Reporting (Narrative) (Details) $ in Millions	1 Months Ended	3 Months Ended				6 Months Ended
	Feb. 28, 2015 case	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($) case	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Tobacco and Health Litigation Cases [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded		$ 5		$ 5		$ 43	$ 48
Engle Progeny Cases, Federal [Member] | PM USA [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded					$ 43
Number of claims resolved | case	415				415
Operating Segments [Member] | Operating Income (Loss) [Member] | Smokeable Products [Member] | Tobacco and Health Litigation Cases [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded		1	$ 26	5	$ 43	27	48
Segment Reconciling Items [Member] | Interest And Other Debt Expense, Net [Member] | Tobacco and Health Litigation Cases [Member]
Segment Reporting Information [Line Items]
Provision related to litigation recorded		$ 4	$ 12	$ 0		$ 16	$ 0

X

- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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