Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Contingencies (Public Civil Actions) (Details) - Combustible Products - Public Civil Actions - litigationCase	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Cases brought against PM	1	2	2
Venezuela
Loss Contingencies [Line Items]
Cases brought against PM	1