Goodwill and Other Intangible Assets, net (Narrative) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 01, 2024	Apr. 30, 2024 USD ($)	Oct. 01, 2023	Sep. 30, 2023 USD ($)
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles		$ 139	$ 128	$ 73
Estimated future amortization, year 1		150
Estimated future amortization, year 2		150
Estimated future amortization, year 3		150
Estimated future amortization, year 4		150
Estimated future amortization, year 5		150
Gain on the sale of IQOS System commercialization rights		2,700	0	0
Other intangible assets, net		$ 12,973	13,686	12,384
Skoal [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks			$ 3,900
Percentage exceeded over carrying value		7.00%	6.00%
Amount over carrying value		$ 300	$ 200
Asset impairment charges	$ 354	354
Other intangible assets, net	$ 3,600
Impairment charge from hypothetical 1% discount rate increase		$ 85
Skoal [Member] | Measurement Input, Long-Term Revenue Growth Rate
Finite-Lived Intangible Assets [Line Items]
Measurement input					0		0.01
Skoal [Member] | Measurement Input, Discount Rate
Finite-Lived Intangible Assets [Line Items]
Measurement input					0.115		0.110
E-Vapor [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage exceeded over carrying value		28.00%
Amount over carrying value		$ 300
Impairment charge from hypothetical 1% discount rate increase		125
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | IQOS Tobacco Heating System [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group, purchase agreement, consideration, additional payment				$ 1,000		$ 2,800		$ 1,800
Deferred gain on disposal			$ 2,700
Gain on the sale of IQOS System commercialization rights		2,700
UST Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks		8,500
UST Inc. [Member] | Copenhagen [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks		4,000
UST Inc. [Member] | Skoal [ Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks		3,600
UST Inc. [Member] | Trademarks, MST [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks		900
Middleton [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks		$ 2,600
Weighted Average [Member] | Definite-Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets amortization period, weighted average, in years		19 years