Contingencies (Number of Tobacco Related Cases Pertaining to Combustible Products Pending Against Us and/or Our Subsidiaries or Indemnitees) (Details) - Combustible Products - litigationCase	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Individual Smoking and Health Cases
Loss Contingencies [Line Items]
Cases brought against PM	40	43	50
Smoking and Health Class Actions
Loss Contingencies [Line Items]
Cases brought against PM	9	9	10
Health Care Cost Recovery Actions
Loss Contingencies [Line Items]
Cases brought against PM	17	17	17
Label-Related Class Actions
Loss Contingencies [Line Items]
Cases brought against PM	0	0	0
Individual Label-Related Cases
Loss Contingencies [Line Items]
Cases brought against PM	3	5	5
Public Civil Actions
Loss Contingencies [Line Items]
Cases brought against PM	1	2	2