Goodwill and Other Intangible Assets, net (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 128,000,000	$ 73,000,000	$ 72,000,000
Estimated future amortization, year 1	165,000,000
Estimated future amortization, year 2	165,000,000
Estimated future amortization, year 3	165,000,000
Estimated future amortization, year 4	165,000,000
Estimated future amortization, year 5	165,000,000
Disposal group, including discontinued operation, interest income	54,000,000	21,000,000
Goodwill impairment	0	0	0
Accumulated goodwill impairment charges	0	0
Impairment of intangible assets, indefinite-lived (excluding goodwill)	0	0	$ 0
Impairment of intangible assets, indefinite-lived, hypothetical one percent increase to discount rate	150,000,000
Skoal [ Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks	$ 3,900,000,000
Reporting unit, percentage of fair value in excess of carrying amount	6.00%
Reporting unit, amount of fair value in excess of carrying amount	$ 200,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | IQOS Tobacco Heating System [Member]
Finite-Lived Intangible Assets [Line Items]
Disposal group, purchase agreement, consideration, additional payment				$ 1,800,000,000
Disposal group, purchase agreement, consideration, initial payment		$ 1,000,000,000
Disposal group, deferred gain on sale of rights under an agreement	2,700,000,000
Middleton [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks	2,600,000,000
UST Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks	8,800,000,000
UST Inc. [Member] | Skoal [ Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks	3,900,000,000
UST Inc. [Member] | Copenhagen [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks	4,000,000,000
UST Inc. [Member] | Trademarks, MST [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived trademarks	$ 900,000,000
Weighted Average [Member] | Definite-Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets amortization period, weighted average, in years	18 years