Contingencies (Other Smoking and Health Class Actions) (Details) - Smoking And Health Class Actions And Aggregated Claims Litigation [Member] - case	256 Months Ended
	Sep. 30, 2017	Oct. 23, 2017	Oct. 24, 2016	Oct. 26, 2015
Loss Contingencies [Line Items]
Number of cases pending			5	5
Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending		4
PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	61
ARKANSAS [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
CALIFORNIA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
DELAWARE [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
DISTRICT OF COLUMBIA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	2
Florida [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	2
ILLINOIS [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	3
IOWA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
KANSAS [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
LOUISIANA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
MARYLAND [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
MICHIGAN [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
MINNESOTA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
NEVADA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	29
NEW JERSEY [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	6
NEW YORK [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	2
OHIO [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
OKLAHOMA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
OREGON [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
PENNSYLVANIA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
PUERTO RICO [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
SOUTH CAROLINA [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
TEXAS [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
WISCONSIN [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of claims dismissed	1
CANADA [Member] | Philip Morris USA and Altria Group [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending		7
BRITISH COLUMBIA [Member] | Philip Morris USA and Altria Group [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending		2