Contingencies (Other Smoking and Health Class Actions) (Details) - Smoking and Health Class Actions and Aggregated Claims Litigation [Member] $ in Billions	1 Months Ended	296 Months Ended
	Mar. 31, 2019 CAD ($) ruling manufacture	Dec. 31, 2020 case manufacture	Jan. 25, 2021 case
PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		61
Arkansas [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
California [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Delaware [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
District of Columbia [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		2
Florida [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		2
Illinois [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		3
Iowa [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Kansas [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Louisiana [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Maryland [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Michigan [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Minnesota [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Nevada [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		29
New Jersey [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		6
New York [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		2
Ohio [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Oklahoma [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Oregon [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Pennsylvania [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Puerto Rico [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
South Carolina [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Texas [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Wisconsin [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Class not certified		1
Canada [Member] | Canadian Tobacco Manufacturers [Member]
Loss Contingencies [Line Items]
Number of manufacturers | manufacture	3	3
Number of verdicts upheld | ruling	2
Amount awarded to other party | $	$ 13
Subsequent Event [Member] | Canada [Member] | Philip Morris USA and Altria Group [Member]
Loss Contingencies [Line Items]
Number of cases pending			7
Subsequent Event [Member] | British Columbia and Saskatchewan [Member] | Philip Morris USA and Altria Group [Member]
Loss Contingencies [Line Items]
Number of cases pending			2