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Segment Reporting (Schedule of Pre-tax Tobacco and Health Litigation Charges) (Details) - Tobacco and Health Litigation Cases [Member] - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items] |  |  |
Provision related to litigation recorded | $ 150 | $ 44 | $ 22
Operating Income (Loss) [Member] | Operating Segments [Member] | Smokeable Products [Member] |  |  |
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items] |  |  |
Provision related to litigation recorded | 127 | 27 | 18
General and Administrative Expense [Member] | Corporate, Non-Segment [Member] |  |  |
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items] |  |  |
Provision related to litigation recorded | 0 | 15 | 0
Interest And Other Debt Expense, Net [Member] | Segment Reconciling Items [Member] | Interest Expense [Member] |  |  |
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items] |  |  |
Provision related to litigation recorded | $ 23 | $ 2 | $ 4

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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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