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Contingencies (Judgments Recorded and Paid) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Loss Contingency Accrual [Roll Forward] |  |
Accrued liability for tobacco and health litigation items at beginning of period | $ 132 | $ 39
Payments | (17) | (5)
Accrued liability for tobacco and health litigation items at end of period | 153 | 77
Interest Expense Related To Litigation [Member] |  |
Loss Contingency Accrual [Roll Forward] |  |
Pre-tax charges | 2 | 0
Aspinall [Member] |  |
Loss Contingency Accrual [Roll Forward] |  |
Pre-tax charges | 32 | 0
Tobacco and Health Judgment [Member] | Litigation Cases Results [Member] |  |
Loss Contingency Accrual [Roll Forward] |  |
Pre-tax charges | 4 | 0
Engle Progeny Cases, Federal [Member] | Litigation Cases Results [Member] |  |
Loss Contingency Accrual [Roll Forward] |  |
Pre-tax charges | $ 0 | $ 43

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- Definition Amount of loss contingency liability. + 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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- Definition Amount of payments made reducing loss contingency liability. + 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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- 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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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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