Investments in Equity Securities (Summary of Investments) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Investments [Line Items]
Total	$ 10,011	$ 9,600
ABI [Member]
Investments [Line Items]
Equity method investments	9,676	8,975
Cronos [Member]
Investments [Line Items]
Equity method investments including warrants and fixed price preemptive rights	335	375
JUUL [Member]
Investments [Line Items]
Equity securities, FV-NI	$ 0	$ 250

Equity Method Investments, Including Fixed-Price Preemptive Rights

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- Definition

[Line Items] for Investments [Table]

+ References

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481664/323-10-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
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-Section S99
-Paragraph 1
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Section 50
-Paragraph 25
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-25

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(b))
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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-Section 45
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-URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

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