Contingencies (Lights/Ultra Lights Cases) (Details) - Subsequent Event [Member]	Apr. 26, 2021 case court claim
Lights [Member]
Loss Contingencies [Line Items]
Claims not certified, number | case	23
Number of cases pending	2
Lights [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of state courts | court	21
Smoking and Health Class Actions and Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	1