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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of fair value of reporting unit in excess of carrying amount.

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Percentage of fair value of reporting unit in excess of carrying amount.

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Goodwill and Other Intangible Assets, net (Narrative) (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($) d	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Loss Contingencies [Line Items]
Amortization of intangible assets	$ 37,000,000	$ 27,000,000	$ 139,000,000
Goodwill	6,072,000,000		6,945,000,000	$ 6,791,000,000
Impairment of goodwill	873,000,000	$ 0	0
Goodwill, accumulated impairment loss	873,000,000		$ 0
E-vapor [Member]
Loss Contingencies [Line Items]
Percentage exceeded over carrying value			28.00%
Amount over carrying value			$ 300,000,000
Goodwill	895,000,000
Impairment of goodwill	$ 873,000,000
E-vapor [Member] \| E-vapor Cases [Member]
Loss Contingencies [Line Items]
Number of days to review \| d	60
Weighted Average
Loss Contingencies [Line Items]
Finite-lived intangible asset, useful life	19 years
MST and snus [Member]
Loss Contingencies [Line Items]
Indefinite-lived trademarks	$ 8,500,000,000
MST and snus [Member] \| Copenhagen [Member]
Loss Contingencies [Line Items]
Indefinite-lived trademarks	4,000,000,000.0
MST and snus [Member] \| Skoal [Member]
Loss Contingencies [Line Items]
Indefinite-lived trademarks	3,600,000,000
MST and snus [Member] \| Other [Member]
Loss Contingencies [Line Items]
Indefinite-lived trademarks	900,000,000
Middleton [Member]
Loss Contingencies [Line Items]
Indefinite-lived trademarks	$ 2,600,000,000