Contingencies (Smoking and Health Litigation) (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
Individual Smoking and Health Cases | Argentina
Loss Contingencies [Line Items]
Cases brought against PM	31
Individual Smoking and Health Cases | Brazil
Loss Contingencies [Line Items]
Cases brought against PM	2
Individual Smoking and Health Cases | Canada
Loss Contingencies [Line Items]
Cases brought against PM	2
Individual Smoking and Health Cases | Chile
Loss Contingencies [Line Items]
Cases brought against PM	1
Individual Smoking and Health Cases | Philippines
Loss Contingencies [Line Items]
Cases brought against PM	1
Individual Smoking and Health Cases | Turkey
Loss Contingencies [Line Items]
Cases brought against PM	1
Individual Smoking and Health Cases | Scotland
Loss Contingencies [Line Items]
Cases brought against PM	1
Individual Smoking and Health Cases | United States District Court, District of Oregon
Loss Contingencies [Line Items]
Cases brought against PM	1
Smoking and Health Class Actions
Loss Contingencies [Line Items]
Cases brought against PM	9	9	10