Contingencies (Lights/Ultra Lights Cases) (Details)	1 Months Ended								3 Months Ended			9 Months Ended
	May 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jul. 31, 2016 USD ($)	May 31, 2016 USD ($)	Apr. 30, 2016 USD ($)	Feb. 29, 2016 USD ($) $ / plantiff	Feb. 28, 2014 $ / plantiff	Sep. 30, 2017 USD ($) case	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Sep. 30, 2017 USD ($) case	Sep. 30, 2016 USD ($)	Oct. 23, 2017 case	Oct. 24, 2016 case	Oct. 26, 2015 case
Loss Contingencies [Line Items]
Payments made related to litigation									$ 0	$ 0		$ 18,000,000	$ 145,000,000
Lights [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Claims not certified, number | case														22
Lights [Member] | PM USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of state courts | case														21
Lights Ultra Lights Class Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending | case															9	12
Lights Ultra Lights Class Actions [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending | case														4
Larsen [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of cases pending | case									1			1
Aspinall [Member]
Loss Contingencies [Line Items]
Litigation settlement			$ 15,300,000			$ 32,000,000	$ 4,900,000
Payments made related to litigation					$ 32,000,000
Legal fees			$ 16,500,000
Aspinall [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Damages sought per class member | $ / plantiff								25
Loss Contingency, Damages Awarded, Value, Per Class Plaintiff | $ / plantiff							25
Provision related to litigation recorded											$ 32,000,000
Miner [Member]
Loss Contingencies [Line Items]
Litigation settlement				$ 45,000,000
Provision related to litigation recorded										$ 45,000,000
Payments for legal settlements		$ 45,000,000
Delaware Consumer Fraud Act [Member]
Loss Contingencies [Line Items]
Litigation settlement	$ 3,000