Income Taxes (Narrative) (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
	Sep. 29, 2025	Oct. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Unrecognized tax benefits if recognized would impact effective tax rate			$ 4	$ 189
Unrecognized tax benefits if recognized would affect deferred taxes			515	27
Additions based on tax positions related to the current year			21	0	$ 1,548
Ordinary loss					4,000
Capital loss					2,400
Decrease in unrecognized tax benefits				1,343
Income tax expense (benefit)			2,442	2,394	2,798
Reversed receivable	$ 45
Reserve for uncertain tax position	348
Deferred tax liabilities			4,224	4,878
Increase (decrease) in valuation allowance			0	(491)	(663)
Worldwide changes in unrecognized tax benefits			(104)	(15)	8
Penalties and interest accrued			83	18	36
Interest (income) expense associated with uncertain tax position			94	(24)	20
Domestic state and local, net of federal effect			278	557	463
Nondeductible goodwill			243	0	0
Valuation reversal, amount				939
Capital loss carryforwards		$ 1,400
Capital losses not yet recognized		6,100	6,100
Deferred tax assets, valuation allowance			779	668	2,256	$ 2,800
E-Vapor [Member]
Income Taxes [Line Items]
Nondeductible goodwill			243
IQOS [Member]
Income Taxes [Line Items]
Capital loss		1,700
Deferred Tax Assets, Domestic Subsidiary Shares [Member]
Income Taxes [Line Items]
Deferred tax assets, valuation allowance					1,808
United States [Member]
Income Taxes [Line Items]
Net operating losses carry forward			106
Capital losses not yet recognized		3,500
State and Local Tax Jurisdiction, Other [Member]
Income Taxes [Line Items]
Net operating losses carry forward			1,212
Outside of U.S. [Member]
Income Taxes [Line Items]
Net operating losses carry forward			38
Capital losses not yet recognized		1,200
ABI [Member]
Income Taxes [Line Items]
Deferred tax liabilities	498
Increase (decrease) in valuation allowance	77
Worldwide changes in unrecognized tax benefits	$ 28		104
JUUL [Member]
Income Taxes [Line Items]
Equity securities, FV-NI, ordinary loss, tax basis of investments		6,400
Ordinary loss				4,000
Capital loss		$ 12,800
Income tax expense (benefit)				(887)
Domestic state and local, net of federal effect				557
Investment					53
Capital loss carryforwards			1,400
Deferred tax assets, valuation allowance			290	207
Cronos Group Inc. [Member]
Income Taxes [Line Items]
Deferred tax assets, valuation allowance			$ 405	$ 402	$ 397