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Contingencies Contingencies (Judgments Recorded and Paid) (Details) - Litigation Case [Domain] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2015 | Mar. 31, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Loss Contingencies Judgments Recorded and Paid [Line Items] |  |  |  |  |
Accrued liability for tobacco and health litigation items at beginning of period | $ 77 | $ 39 | $ 7 | $ 39 | $ 3
Loss Contingency Accrual, Provision | 5 |  | 31 | 48 | 35
Payments for tobacco and health litigation items | (5) |  | (4) | (10) | (4)
Accrued liability for tobacco and health litigation items at end of period | 77 | $ 77 | 34 | 77 | 34
Tobacco and Health Judgment [Member] |  |  |  |  |
Loss Contingencies Judgments Recorded and Paid [Line Items] |  |  |  |  |
Loss Contingency Accrual, Provision | 5 |  | 0 | 5 | 3
Engle Progeny Cases, Federal [Member] |  |  |  |  |
Loss Contingencies Judgments Recorded and Paid [Line Items] |  |  |  |  |
Loss Contingency Accrual, Provision | 0 |  | 0 | 43 | 0
Interest Expense [Member] |  |  |  |  |
Loss Contingencies Judgments Recorded and Paid [Line Items] |  |  |  |  |
Loss Contingency Accrual, Provision | 0 |  | 0 | 0 | 1
Federal Governments Lawsuit [Member] | Health Care Cost Recovery Litigation [Member] |  |  |  |  |
Loss Contingencies Judgments Recorded and Paid [Line Items] |  |  |  |  |
Loss Contingency Accrual, Provision | $ 0 |  | $ 31 | $ 0 | $ 31

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- Definition [Line Items] for Loss Contingencies Judgments Recorded and Paid [Table] + References No definition available. + Details
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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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