Income Taxes (Schedule of Deferred Income Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred income tax assets:
Accrued postretirement and postemployment benefits	$ 302	$ 303
Settlement charges	644	729
IQOS deferred gain	691	0
Net operating losses and tax credit carryforwards	217	31
Other	125	0
Total deferred income tax assets	4,404	4,471
Deferred income tax liabilities:
Property, plant and equipment	(237)	(233)
Intangible assets	(3,210)	(2,849)
Investment in ABI	(1,391)	(1,226)
Accrued pension costs	(81)	(70)
Other	0	(115)
Total deferred income tax liabilities	(4,919)	(4,493)
Valuation allowances	(2,256)	(2,800)	$ (3,097)	$ (2,817)
Net deferred income tax liabilities	(2,771)	(2,822)
JUUL [Member]
Deferred income tax assets:
JUUL related losses	2,028	3,001
Deferred income tax liabilities:
Valuation allowances		(2,394)	(2,652)
Cronos Group Inc. [Member]
Deferred income tax assets:
Investment in Cronos	397	407
Deferred income tax liabilities:
Valuation allowances	$ (397)	$ (379)	$ (407)