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Debt (Fair Values) (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Billions | Jun. 30, 2015 | Dec. 31, 2014
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Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Aggregate value of Altria's total debt | $ 15.4 | $ 17.0
Carrying Value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Aggregate value of Altria's total debt | $ 13.9 | $ 14.7

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