Contingencies (Overview of Altria Group, Inc. and/or PM USA Tobacco-Related Litigation Narrative) (Details) $ in Millions		1 Months Ended			12 Months Ended			135 Months Ended	204 Months Ended	236 Months Ended
	Jan. 26, 2016 case	Mar. 31, 2015 USD ($)	Feb. 28, 2015 case	May. 31, 2001 USD ($)	Dec. 31, 2015 USD ($) case	Dec. 31, 2014 USD ($) case	Dec. 31, 2013 USD ($) case	Dec. 31, 2015 USD ($) case	Dec. 31, 2015 USD ($) case	Dec. 31, 2015 USD ($) case
Loss Contingencies [Line Items]
Litigation settlement interest expense (income) | $					$ 13	$ (47)	$ 0
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending					1	1	1	1	1	1
Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending					5	5	6	5	5	5
Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Judgments paid | $								$ 22
Litigation settlement interest expense (income) | $					$ 14			$ 3
Individual Smoking And Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending					65	67	67	65	65	65
Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending					11	12	15	11	11	11
Tobacco and Health Judgment [Member]
Loss Contingencies [Line Items]
Judgments paid | $								$ 323
Litigation settlement interest expense (income) | $								144
Philip Morris USA [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of claims dismissed									1
Philip Morris USA [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										60
Philip Morris USA [Member] | Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Amounts placed in escrow | $				$ 500
Philip Morris USA [Member] | Engle Progeny Cases, Federal [Member]
Loss Contingencies [Line Items]
Number of claims resolved			415		415
Amounts placed in escrow | $		$ 43						$ 43
Philip Morris USA [Member] | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of verdicts returned									57
Number of favorable verdicts									38
Number of unfavorable verdicts									19
Number of claims resolved									15
Philip Morris USA [Member] | ALASKA | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | CALIFORNIA | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										1
Philip Morris USA [Member] | CALIFORNIA | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									7
Philip Morris USA [Member] | FLORIDA | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										2
Philip Morris USA [Member] | FLORIDA | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									10
Number cases with granted new trial					1			1	1	1
Philip Morris USA [Member] | LOUISIANA | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										1
Philip Morris USA [Member] | LOUISIANA | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | MASSACHUSETTS | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | MISSISSIPPI | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | MISSOURI | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									3
Philip Morris USA [Member] | NEW HAMPSHIRE | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | NEW JERSEY | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										6
Philip Morris USA [Member] | NEW JERSEY | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | NEW YORK | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										2
Philip Morris USA [Member] | NEW YORK | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									5
Philip Morris USA [Member] | OHIO | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										1
Philip Morris USA [Member] | OHIO | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									2
Philip Morris USA [Member] | PENNSYLVANIA | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed										1
Philip Morris USA [Member] | PENNSYLVANIA | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | RHODE ISLAND | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									1
Philip Morris USA [Member] | TENNESSEE | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									2
Philip Morris USA [Member] | WEST VIRGINIA | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts									2
Subsequent Event [Member] | Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	11
Subsequent Event [Member] | Philip Morris USA [Member] | Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	2
Number of cases set for trial	5
Number of verdicts returned	92
Number of favorable verdicts	39
Number of unfavorable verdicts	51
Subsequent Event [Member] | Philip Morris USA [Member] | Engle Progeny Cases, Federal [Member]
Loss Contingencies [Line Items]
Number of cases pending	23
Number of favorable verdicts	9
Subsequent Event [Member] | Philip Morris USA [Member] | Individual Smoking And Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases set for trial	0
Number of cases in trial	1
Subsequent Event [Member] | Philip Morris USA [Member] | Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Number of cases set for trial	1
Subsequent Event [Member] | Philip Morris USA [Member] | CANADA | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	10
Subsequent Event [Member] | Philip Morris USA and Altria Group [Member] | CANADA | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	8
Subsequent Event [Member] | Philip Morris USA and Altria Group [Member] | CANADA | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	7
Pending Litigation [Member] | Philip Morris USA [Member] | Other Assets [Member]
Loss Contingencies [Line Items]
Security posted for appeal of judgments | $					$ 77			$ 77	$ 77	$ 77