Investments in Equity Securities (Investment in Cronos Narrative) (Details) - Cronos [Member] $ / shares in Units, shares in Thousands, $ in Millions, $ in Billions		3 Months Ended	9 Months Ended
	Oct. 24, 2022 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2022 CAD ($)	Sep. 30, 2022 USD ($) shares	Sep. 30, 2022 $ / shares	Dec. 31, 2021 USD ($)
Investments [Line Items]
Ownership percentage				41.40%
Number of ordinary shares owned (approximately) (in shares) | shares				156,600
Fair value of equity investment		$ 437				$ 617
Equity method investments		437
Impairment of JUUL equity securities		$ 107
Equity method investment, difference between carrying amount and fair value, percentage (approximately)		(20.00%)		5.00%
Equity method investment, difference between carrying amount and fair value				$ 22
Equity Contract, Preemptive Rights [Member]
Investments [Line Items]
Equity method investment, shares purchased, (CAD per share) | $ / shares					$ 16.25
Equity method investment, number of shares eligible for purchase (approximately) (in shares) | shares				8,000
Equity method investment, aggregate exercise price			$ 0.1
Equity Contract, Preemptive Rights [Member] | Subsequent Event [Member]
Investments [Line Items]
Equity method investment, aggregate exercise price	$ 100
Equity Contract, Warrant [Member]
Investments [Line Items]
Equity method investment, shares purchased, (CAD per share) | $ / shares					$ 19.00
Equity method investment, number of shares eligible for purchase (approximately) (in shares) | shares				84,000
Equity method investment, percentage of shares eligible for purchase (approximately)				10.00%
Equity method investment, aggregate exercise price			$ 1.6
Equity Contract, Warrant [Member] | Subsequent Event [Member]
Investments [Line Items]
Equity method investment, aggregate exercise price	$ 1,200
Equity Contract, Warrant And Equity Contract, Preemptive Rights [Member]
Investments [Line Items]
Equity method investment, warrant exercised, ownership percentage			52.00%
Common Stock [Member]
Investments [Line Items]
Equity method investments				$ 415		$ 617