Contingencies (Label-Related Cases) (Details) - Combustible Products - Individual Label-Related Cases - litigationCase	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Cases brought against PM	3	5	5
Italy
Loss Contingencies [Line Items]
Cases brought against PM	1
Chile
Loss Contingencies [Line Items]
Cases brought against PM	2