Segment Reporting (Narrative) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net revenues	$ 6,304,000,000	$ 7,123,000,000	$ 6,367,000,000	$ 6,359,000,000	$ 6,007,000,000	$ 6,856,000,000	$ 6,619,000,000	$ 5,628,000,000	$ 26,153,000,000	$ 25,110,000,000	$ 25,364,000,000
Cost of sales									7,818,000,000	7,085,000,000	7,373,000,000
Philip Morris Capital Corporation [Member]
Segment Reporting Information [Line Items]
Increase (decrease) residual value									125,000,000	$ 0	$ 0
COVID-19 [Member]
Segment Reporting Information [Line Items]
Cost of sales	$ 0	$ 0	$ 50,000,000	$ 0					$ 50,000,000
Revenue Benchmark [Member] | Credit Concentration Risk [Member] | McLane Company Inc [Member]
Segment Reporting Information [Line Items]
Contribution of net revenues by major customer percentage									26.00%	25.00%	27.00%
Revenue Benchmark [Member] | Credit Concentration Risk [Member] | Core-Mark Holding Company, Inc. [Member]
Segment Reporting Information [Line Items]
Contribution of net revenues by major customer percentage									17.00%	15.00%	14.00%
Smokeable Products [Member]
Segment Reporting Information [Line Items]
Net revenues									$ 23,089,000,000	$ 21,996,000,000	$ 22,297,000,000
Smokeable Products [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member] | Operating Income (Loss) [Member] | NPM Adjustment to Cost Of Sales [Member] | PM USA [Member]
Segment Reporting Information [Line Items]
(Gain) Loss Related to Litigation Settlement									4,000,000	0	(145,000,000)
Smokeable Products [Member] | COVID-19 [Member]
Segment Reporting Information [Line Items]
Cost of sales									41,000,000
Smokeable Products [Member] | Cigarettes [Member]
Segment Reporting Information [Line Items]
Net revenues									22,135,000,000	21,158,000,000	21,506,000,000
Smokeable Products [Member] | Cigars [Member]
Segment Reporting Information [Line Items]
Net revenues									954,000,000	838,000,000	791,000,000
Wine [Member]
Segment Reporting Information [Line Items]
Net revenues									$ 614,000,000	$ 689,000,000	$ 691,000,000
Wine [Member] | Revenue Benchmark [Member] | Credit Concentration Risk [Member] | Two Distributors [Member]
Segment Reporting Information [Line Items]
Contribution of net revenues by major customer percentage									68.00%	67.00%	64.00%
Oral Tobacco Products [Member]
Segment Reporting Information [Line Items]
Net revenues									$ 2,533,000,000	$ 2,367,000,000	$ 2,262,000,000
Oral Tobacco Products [Member] | COVID-19 [Member]
Segment Reporting Information [Line Items]
Cost of sales									$ 9,000,000