Contingencies (Health Care Cost Recovery Litigation) (Details)	1 Months Ended	3 Months Ended
	Nov. 30, 1998 USD ($) state	Mar. 31, 2022 USD ($) manufacture claim	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Oct. 27, 2020 claim	Oct. 28, 2019 claim	Sep. 30, 2019 manufacture
Loss Contingencies [Line Items]
Litigation settlement			$ 90,000,000
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim					1	1
Number of states with settled litigation | state	46
State settlement agreements annual payments	$ 9,400,000,000
State settlement agreements attorney fees annual cap	$ 500,000,000
Litigation settlement		$ 900,000,000		$ 900,000,000
Threatened Litigation [Member] | Canada [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim		10
Canadian Tobacco Manufacturers [Member] | Canada [Member] | Smoking and Health Class Actions and Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of manufacturers | manufacture		3					3