Acquisition of NJOY - Narrative (Details)		1 Months Ended	9 Months Ended	12 Months Ended
	Jun. 01, 2023 USD ($)	Jul. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 21, 2024 product	Jun. 30, 2023 USD ($)
Business Acquisition [Line Items]
Business acquisition, intangible assets, expected tax deductible amount	$ 0
Term Loan [Member]
Business Acquisition [Line Items]
Debt instrument, face value	2,000,000,000.0						$ 2,000,000,000.0
NJOY Holdings, Inc. [Member]
Business Acquisition [Line Items]
Total consideration	2,901,000,000
Payments to acquire businesses, gross	2,750,000,000	$ 250,000,000
Business combination, contingent consideration arrangements, range of outcomes, value, high	500,000,000
Business combination, contingent consideration, liability	130,000,000		$ 20,000,000	$ 20,000,000	$ 130,000,000
Number of products | product						4
Pre-tax charge for change in fair value of contingent payments				140,000,000
Business combination, acquisition related costs				$ 176,000,000	$ 72,000,000
NJOY Holdings, Inc. [Member] | Menthol Pod [Member]
Business Acquisition [Line Items]
Business combination, contingent consideration arrangements, range of outcomes, value, high	250,000,000
NJOY Holdings, Inc. [Member] | Blueberry Pod [Member]
Business Acquisition [Line Items]
Business combination, contingent consideration arrangements, range of outcomes, value, high	125,000,000
NJOY Holdings, Inc. [Member] | Watermelon Pod [Member]
Business Acquisition [Line Items]
Business combination, contingent consideration arrangements, range of outcomes, value, high	$ 125,000,000
NJOY Holdings, Inc. [Member] | Weighted Average [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life			18 years