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Segment Reporting (Schedule of Pre-tax Tobacco and Health Litigation Items) (Details) - Tobacco and Health Litigation Cases [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Mar. 31, 2016 | Jun. 30, 2015 | Mar. 31, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Schedule of Pre-tax Tobacco and Health Litigation Items [Line Items] |  |  |  |  |  |
Provision related to litigation recorded | $ 5 |  | $ 5 |  | $ 43 | $ 48
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 | 1 | $ 26 | 5 | $ 43 | 27 | 48
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 | $ 4 | $ 12 | $ 0 |  | $ 16 | $ 0

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- Definition [Line Items] for Schedule of Pre-tax Tobacco and Health Litigation Charges [Table] + References No definition available. + Details
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- 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 + Details
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