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Contingencies (Other Smoking and Health Class Actions Narrative) (Details) - Smoking And Health Class Actions And Aggregated Claims Litigation [Member] - case |  | 256 Months Ended | 259 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 29, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Loss Contingencies [Line Items] |  |  |  |  |
Number of cases pending |  |  | 4 | 5 | 5
Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 61 |  |
Philip Morris USA and Altria Group [Member] | Subsequent Event [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss Contingency, Actions Taken by Defendant | 7 |  |  |  |
Arkansas [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
California [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Delaware [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  | 1 |  |  |
District Of Columbia [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 2 |  |
Florida [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 2 |  |
Illinois [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 3 |  |
Iowa [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Kansas [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Louisiana [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Maryland [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Michigan [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Minnesota [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Nevada [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 29 |  |
New Jersey [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 6 |  |
New York [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 2 |  |
Ohio [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Oklahoma [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Oregon [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Pennsylvania [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Puerto Rico [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
South Carolina [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Texas [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Wisconsin [Member] | Philip Morris USA [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims dismissed |  |  | 1 |  |
Canada [Member] | Philip Morris USA and Altria Group [Member] | Subsequent Event [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of cases pending | 7 |  |  |  |
British Columbia [Member] | Philip Morris USA and Altria Group [Member] | Subsequent Event [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of cases pending | 2 |  |  |  |

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