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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 450
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Contingencies (Schedule of Pending Cases) (Details) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 24, 2022 claim lawsuit case	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2022 USD ($)	Oct. 25, 2021 claim	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Loss Contingencies [Line Items]
Pre-tax charge \| $		$ 55	$ 97	$ 55	$ 97	$ 91	$ 25		$ 0	$ 9
Payments \| $		(13)	(8)	(137)	(60)
Loss contingency accrual, provision \| $						$ 90
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending								179
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending								1
E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending								2,951
Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending								3
Tobacco and Health Judgment [Member] \| Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision \| $		$ 41	$ 99	$ 98	$ 142
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit \| lawsuit	17
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	161
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Illinois [Member]
Loss Contingencies [Line Items]
Number of cases pending	18
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| New Mexico [Member]
Loss Contingencies [Line Items]
Number of cases pending	18
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	35
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	54
Subsequent Event [Member] \| ETS Smoking and Health Case, Flight Attendants [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases \| case	1,395
Subsequent Event [Member] \| Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	1
Subsequent Event [Member] \| E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	4,351
Loss contingency, class action lawsuit \| lawsuit	58
Subsequent Event [Member] \| E-vapor Litigation [Member] \| Pending Individual Lawsuits [Member]
Loss Contingencies [Line Items]
Number of cases pending	3,119
Subsequent Event [Member] \| E-vapor Litigation [Member] \| Pending Lawsuits Filed By State Or Local Governments [Member]
Loss Contingencies [Line Items]
Number of cases pending	1,174
Subsequent Event [Member] \| Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	3
Loss contingency, number of inactive cases \| case	1
Loss contingency, number of inactive class action lawsuits \| case	2