Contingencies (Lights/Ultra Lights Cases) (Details)	Oct. 22, 2018 case court	Oct. 23, 2017 case	Oct. 24, 2016 case
Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending		4	9
Subsequent Event [Member] | Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	2
Subsequent Event [Member] | Lights [Member]
Loss Contingencies [Line Items]
Claims not certified, number	23
Subsequent Event [Member] | Lights [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of state courts | court	21