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Segment Reporting (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Oral Tobacco Segment [Member]
Restructuring Cost and Reserve [Line Items]
Business combination, acquisition related costs	$ 37,000,000
Smokeable Products Segment [Member] | Non-Participating Manufacturer Arbitration Panel Decision | Operating Income (Loss) [Member] | NPM Adjustment to Cost Of Sales | PM USA [Member]
Restructuring Cost and Reserve [Line Items]
Gain (loss) related to litigation settlement	32,000,000	$ 0
Wine Business Strategic Reset [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,000,000	392,000,000
Wine Business Strategic Reset [Member] | Inventory Write-Off [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		292,000,000
Wine Business Strategic Reset [Member] | Purchase Commitment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 100,000,000

X

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

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-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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-SubTopic 10
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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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