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Segment Reporting (Schedule of Pre-tax Tobacco and Health Litigation Items) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Non-Participating Manufacturer Arbitration Panel Decision [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Pre-tax (income) expense for NPM adjustment items | $ 0 | $ 5 | $ (145) | $ 4
PM USA [Member] | Tobacco and Health Litigation Cases [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Provision related to litigation recorded | 21 | 0 | 119 | 18
PM USA [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member] | Interest And Other Debt Expense, Net [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest and other debt expense, net | 0 | 2 | 0 | 9
NPM Adjustment to Cost Of Sales [Member] | PM USA [Member] | Smokeable Products [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member] | Cost of Sales [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Pre-tax (income) expense for NPM adjustment items | 0 | 3 | (145) | (5)
Operating Segments [Member] | PM USA [Member] | Smokeable Products [Member] | Tobacco and Health Litigation Cases [Member] | Operating Income (Loss) [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Provision related to litigation recorded | $ 10 | $ 0 | $ 94 | $ 16

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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
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