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Income Taxes (Schedule of Unrecognized Tax Benefits and Consolidated Liability for Tax Contingencies) (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefits | $ 158 | $ 258 | $ 227 | $ 262
Accrued interest and penalties | 14 | 57 |  |
Tax credits and other indirect benefits | (3) | (17) |  |
Liability for tax contingencies | 169 | 298 |  |
Altria Group, Inc. [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefits | 158 | 228 |  |
PMI [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefits | $ 0 | 30 |  |
Accrued interest and penalties |  | $ 7 |  |

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