Asset Impairment and Exit Costs (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) employee	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Exit costs	$ 216	$ 149	$ 422
European Union | Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit costs			342
Total separation programs			251
Asset impairment charges			91
Contract Termination
Restructuring Cost and Reserve [Line Items]
Exit costs	57	0
Contract Termination | East Asia & Australia | Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit costs	57	0
Employee Severance
Restructuring Cost and Reserve [Line Items]
Exit costs		141	303
Employee Severance | East Asia & Australia | Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit costs	31	25	0
Employee Severance | European Union | Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit costs	68	53	251
Asset Impairment
Restructuring Cost and Reserve [Line Items]
Exit costs	0	8	119
Asset Impairment | East Asia & Australia | Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit costs	0	1	0
Asset Impairment | European Union | Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit costs	0	4	91
Philip Morris Korea | Contract Termination | East Asia & Australia
Restructuring Cost and Reserve [Line Items]
Exit costs	$ 57
Organizational Design Optimization
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	1,020
Cost incurred to date	$ 308
Organizational Design Optimization | Employee Severance
Restructuring Cost and Reserve [Line Items]
Exit costs	159	$ 149
Cost incurred to date	300
Organizational Design Optimization | Asset Impairment
Restructuring Cost and Reserve [Line Items]
Cost incurred to date	$ 8
Global Manufacturing Infrastructure Optimization Plan
Restructuring Cost and Reserve [Line Items]
Exit costs			80
Global Manufacturing Infrastructure Optimization Plan | Argentina | Operating Segments
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs			15
Global Manufacturing Infrastructure Optimization Plan | Colombia | Operating Segments
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs			45
Global Manufacturing Infrastructure Optimization Plan | Pakistan | Operating Segments
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs			$ 20