Contingencies (Schedule of Pending Cases) (Details)	Oct. 25, 2021 claim case lawsuit	Oct. 27, 2020 claim	Oct. 28, 2019 claim
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending		142	95
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending		1	1
E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending		1,145	0
Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending		4	4
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit	16
Subsequent Event [Member] | Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	179
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Illinois [Member]
Loss Contingencies [Line Items]
Number of cases pending	18
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | New Mexico [Member]
Loss Contingencies [Line Items]
Number of cases pending	17
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	40
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	70
Subsequent Event [Member] | ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases | case	1,471
Subsequent Event [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	1
Subsequent Event [Member] | E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	2,951
Loss contingency, class action lawsuit | lawsuit	53
Subsequent Event [Member] | E-vapor Litigation [Member] | Pending Individual Lawsuits [Member]
Loss Contingencies [Line Items]
Number of cases pending	2,548
Subsequent Event [Member] | E-vapor Litigation [Member] | Pending Lawsuits Filed By State Or Local Governments [Member]
Loss Contingencies [Line Items]
Number of cases pending	350
Subsequent Event [Member] | Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	3
Loss contingency, number of inactive cases | case	1
Loss contingency, number of inactive class action lawsuits | case	2