Segment Reporting (Schedule of NPM Adjustment Items) (Details) - Non-Participating Manufacturer Arbitration Panel Decision [Member] - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Litigation settlement, amount	$ (1)	$ 18
PM USA [Member] \| Interest And Other Debt Expense, Net [Member] \| Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Interest and other debt expense, net	7	6
PM USA [Member] \| NPM Adjustment to Cost Of Sales [Member] \| Operating Income (Loss) [Member] \| Operating Segments [Member] \| Smokeable Products [Member]
Segment Reporting Information [Line Items]
Litigation settlement, amount	$ (8)	$ 12

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration