Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Unrecognized tax benefits if recognized would impact effective tax rate	$ 31	$ 47
Unrecognized tax benefits if recognized would affect deferred taxes	22	27
Interest (income) expense associated with uncertain tax position	(4)	4	$ 6
Potential decrease in liability for uncertain tax positions	17
Provision for income taxes	1,349	2,436	2,064
Effective income tax rate reconciliation, Tax Cuts and Jobs Act, transition tax on accumulated foreign earnings, amount			84
Effective income tax rate reconciliation, Tax Cuts and Jobs Act, tax credit, foreign			38
Audit Adjustments Prior Year Tax Audits [Member]
Income Taxes [Line Items]
Tax benefit recorded			105
Accruals no longer required [Member]
Income Taxes [Line Items]
Tax benefit recorded			100
Equity Method Investments [Member]
Income Taxes [Line Items]
Tax benefit recorded			79
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Net operating losses carry forward	272
JUUL [Member]
Income Taxes [Line Items]
Provision for income taxes		612
Valuation allowance release		24
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount	2,652	2,610	$ 2,024
Cronos Group Inc. [Member]
Income Taxes [Line Items]
Provision for income taxes	128
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount	$ 407	$ 121