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Contingencies (Overview of Altria Group, Inc. and/or PM USA Tobacco-Related Litigation Narrative) (Details) $ in Millions |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 142 Months Ended | 210 Months Ended | 242 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 22, 2016 case | Mar. 31, 2015 USD ($) | Feb. 28, 2015 case | May 31, 2001 USD ($) | Mar. 31, 2015 case | Jun. 30, 2016 USD ($) case | Jul. 22, 2016 USD ($) case | Jun. 30, 2016 USD ($) case | Jun. 30, 2016 USD ($) case | Jul. 27, 2016 case | Jul. 24, 2015 case | Jul. 18, 2014 case
Aspinall [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement interest expense (income) | $ |  |  |  |  |  | $ 10 |  |  |  |  |  |
Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  |  | 1 | 1
Smoking And Health Class Actions And Aggregated Claims Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  |  | 5 | 5
Individual Smoking And Health Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  |  | 65 | 67
Lights Ultra Lights Class Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  |  | 12 | 14
Subsequent Event [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  | 1 |  |
Subsequent Event [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  | 5 |  |
Subsequent Event [Member] | Engle Progeny Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Judgments paid | $ |  |  |  |  |  |  | $ 82 |  |  |  |  |
Litigation settlement interest expense (income) | $ |  |  |  |  |  |  | 21 |  |  |  |  |
Subsequent Event [Member] | Individual Smoking And Health Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  |  |  |  |  | 62 |  |
Subsequent Event [Member] | Tobacco and Health Judgment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Judgments paid | $ |  |  |  |  |  |  | 428 |  |  |  |  |
Litigation settlement interest expense (income) | $ |  |  |  |  |  |  | $ 183 |  |  |  |  |
Subsequent Event [Member] | Lights Ultra Lights Class Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 9 |  |  |  |  |  | 9 |  |  | 9 |  |
Philip Morris USA and Altria Group [Member] | Subsequent Event [Member] | Health Care Cost Recovery Actions [Member] | CANADA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 8 |  |  |  |  |  | 8 |  |  |  |  |
Philip Morris USA and Altria Group [Member] | Subsequent Event [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | CANADA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 7 |  |  |  |  |  | 7 |  |  |  |  |
PM USA [Member] | Pending Litigation [Member] | Other Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Security posted for appeal of judgments | $ |  |  |  |  |  | $ 104 |  | $ 104 | $ 104 |  |  |
PM USA [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 60 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | CALIFORNIA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 1 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | FLORIDA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 2 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | LOUISIANA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 1 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | NEW JERSEY |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 6 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | NEW YORK |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 2 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | OHIO |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 1 |  |  |
PM USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | PENNSYLVANIA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims dismissed |  |  |  |  |  |  |  |  | 1 |  |  |
PM USA [Member] | Engle Progeny Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments made | $ |  |  |  | $ 500 |  |  |  |  |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of verdicts returned |  |  |  |  |  |  |  | 61 |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 41 |  |  |  |
Number of unfavorable verdicts |  |  |  |  |  |  |  | 20 |  |  |  |
Number of claims resolved |  |  |  |  |  |  |  | 17 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | ALASKA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | CALIFORNIA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 7 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | FLORIDA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 10 |  |  |  |
Number cases with granted new trial |  |  |  |  |  | 1 |  | 1 | 1 |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | LOUISIANA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | MASSACHUSETTS |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 2 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | MISSISSIPPI |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | MISSOURI |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 4 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | NEW HAMPSHIRE |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | NEW JERSEY |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | NEW YORK |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 5 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | OHIO |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 2 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | PENNSYLVANIA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | RHODE ISLAND |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 1 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | TENNESSEE |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 2 |  |  |  |
PM USA [Member] | Non Engle Progeny Cases [Member] | WEST VIRGINIA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts |  |  |  |  |  |  |  | 2 |  |  |  |
PM USA [Member] | Engle Progeny Cases, Federal [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of claims resolved |  |  | 415 |  | 415 |  |  |  |  |  |  |
Payments made | $ |  | $ 43 |  |  |  |  |  |  |  |  |  |
PM USA [Member] | Medical Monitoring Class Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  | 1 |  | 1 | 1 |  |  |
PM USA [Member] | Subsequent Event [Member] | Health Care Cost Recovery Actions [Member] | CANADA |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 10 |  |  |  |  |  | 10 |  |  |  |  |
PM USA [Member] | Subsequent Event [Member] | Engle Progeny Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 2 |  |  |  |  |  | 2 |  |  |  |  |
Number of cases set for trial | 7 |  |  |  |  |  | 7 |  |  |  |  |
Number of verdicts returned | 100 |  |  |  |  |  |  |  |  |  |  |
Number of favorable verdicts | 42 |  |  |  |  |  |  |  |  |  |  |
Number of unfavorable verdicts | 56 |  |  |  |  |  |  |  |  |  |  |
PM USA [Member] | Subsequent Event [Member] | Engle Progeny Cases [Member] | Remanded For a New Trial [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 1 |  |  |  |  |  | 1 |  |  |  |  |
PM USA [Member] | Subsequent Event [Member] | Individual Smoking And Health Cases [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases set for trial | 0 |  |  |  |  |  | 0 |  |  |  |  |
PM USA [Member] | Subsequent Event [Member] | Engle Progeny Cases, Federal [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases pending | 14 |  |  |  |  |  | 14 |  |  |  |  |
Number of favorable verdicts | 9 |  |  |  |  |  |  |  |  |  |  |
Payments made | $ |  |  |  |  |  |  | $ 43 |  |  |  |  |
PM USA [Member] | Subsequent Event [Member] | Medical Monitoring Class Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases set for trial | 0 |  |  |  |  |  | 0 |  |  |  |  |
PM USA [Member] | Subsequent Event [Member] | Lights Ultra Lights Class Actions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of cases set for trial | 1 |  |  |  |  |  | 1 |  |  |  |  |

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