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Segment Reporting (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |  |  |
Loss contingency accrual, provision |  |  |  |  | $ 90
Tobacco and Health Litigation Cases [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Loss contingency accrual, provision | $ 46 | $ 8 | $ 58 | $ 43 |
Smokeable Products Segment [Member] | Operating Segments [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 |  |  | 60 | 32 |
Smokeable Products Segment [Member] | Operating Segments [Member] | Tobacco and Health Litigation Cases [Member] | Operating Income (Loss) [Member] | PM USA [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Loss contingency accrual, provision | $ 38 | $ 8 | $ 50 | 43 |
Oral Tobacco Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Business combination, acquisition related costs |  |  |  | $ 37 |

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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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X
- 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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X
- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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