Investments in Equity Securities (Investment in Cronos) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Equity Method Investments [Line Items]
Unrealized gain (loss) on derivatives	$ 0	$ 135	$ 14	$ 128
Fixed-price Preemptive Rights [Member]
Schedule of Equity Method Investments [Line Items]
Unrealized gain (loss) on derivatives	0	17	1	21
Cronos Warrant [Member]
Schedule of Equity Method Investments [Line Items]
Unrealized gain (loss) on derivatives	$ 0	$ 118	$ 13	$ 107

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Name:	us-gaap_UnrealizedGainLossOnDerivatives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration