Investments in Equity Securities (Investment in JUUL Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
JUUL [Member]
Schedule of Equity Method Investments [Line Items]
Loss on disposition of JUUL equity securities	$ 0	$ 250	$ 1,155	$ 250	$ 1,255