Contingencies (Overview of Altria and/or PM USA Tobacco-Related Litigation Narrative) (Details) - case		244 Months Ended
	Apr. 22, 2019	Apr. 22, 2019	Apr. 23, 2018	Apr. 27, 2017
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			4	5
Individual Smoking And Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending			102	80
Subsequent Event [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	1	1
Subsequent Event [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	2	2
Subsequent Event [Member] | Individual Smoking And Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	98	98
Subsequent Event [Member] | PM USA [Member] | Health Care Cost Recovery Actions [Member] | CANADA [Member]
Loss Contingencies [Line Items]
Number of cases pending	10	10
Subsequent Event [Member] | PM USA [Member] | Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of cases set for trial	4	4
Number of verdicts returned	130
Number of favorable verdicts	46
Number of unfavorable verdicts	73
Subsequent Event [Member] | PM USA [Member] | Individual Smoking And Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases set for trial	0	0
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of verdicts returned		65
Number of favorable verdicts		43
Number of unfavorable verdicts		22
Number of claims resolved		20
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | ALASKA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | CALIFORNIA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		7
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | CONNECTICUT [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | FLORIDA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		10
Number cases with granted new trial	1	1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | LOUISIANA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | MASSACHUSETTS [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		3
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | MISSISSIPPI [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | MISSOURI [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		4
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | NEW HAMPSHIRE [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | NEW JERSEY [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | NEW YORK [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		5
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | OHIO [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		2
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | PENNSYLVANIA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | RHODE ISLAND [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		1
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | TENNESSEE [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		2
Subsequent Event [Member] | PM USA [Member] | Non Engle Progeny Cases [Member] | WEST VIRGINIA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts		2
Subsequent Event [Member] | Philip Morris USA and Altria Group [Member] | Health Care Cost Recovery Actions [Member] | CANADA [Member]
Loss Contingencies [Line Items]
Number of cases pending	8	8
Subsequent Event [Member] | Philip Morris USA and Altria Group [Member] | Smoking And Health Class Actions And Aggregated Claims Litigation [Member] | CANADA [Member]
Loss Contingencies [Line Items]
Number of cases pending	7	7