Contingencies (Federal Government's Lawsuit) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2006	Dec. 31, 2021	Dec. 31, 2019	Dec. 31, 2014
Loss Contingencies [Line Items]
Provision related to litigation recorded		$ 90
Federal Governments Lawsuit [Member]
Loss Contingencies [Line Items]
Disclosure period	10 years
Implementation of Corrective Communications [Member] | Federal Governments Lawsuit [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Provision related to litigation recorded			$ 36	$ 36
Implementation of Corrective Communications [Member] | Federal Governments Lawsuit [Member] | Altria Group [Member]
Loss Contingencies [Line Items]
Provision related to litigation recorded			$ 36	$ 36