Income Taxes (Schedule of Deferred Income Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred income tax assets:
Accrued postretirement and postemployment benefits	$ 387	$ 524
Settlement charges	835	888
Accrued pension costs	0	148
Net operating losses and tax credit carryforwards	46	81
Total deferred income tax assets	4,323	4,411
Deferred income tax liabilities:
Property, plant and equipment	(216)	(273)
Intangible assets	(2,802)	(2,806)
Investment in ABI	(1,695)	(2,819)
Finance assets, net	(29)	(117)
Accrued pension costs	(55)	0
Other	(94)	(12)
Total deferred income tax liabilities	(4,891)	(6,027)
Valuation allowances	(3,097)	(2,817)	$ (2,324)	$ (71)
Net deferred income tax liabilities	(3,665)	(4,433)
JUUL [Member]
Deferred income tax assets:
Deferred tax assets, equity method investments	2,652	2,642
Cronos Group Inc. [Member]
Deferred income tax assets:
Deferred tax assets, equity method investments	$ 403	$ 128