Contingencies (Engle Class Action And Engle Progeny Trial Results) (Details)		1 Months Ended
	Jan. 24, 2022 USD ($) case contract plantiff	Jul. 31, 2021 USD ($)	Jul. 31, 2006	Jan. 31, 2008 case	Jul. 31, 2000 USD ($)
Loss Contingencies [Line Items]
Damages awarded, value | $		$ 3,000,000
Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Punitive damages awarded | $					$ 145,000,000,000
Engle Progeny Cases [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded | $					$ 74,000,000,000
Period for decertified class members could file individual actions			1 year
Engle Progeny Cases, State [Member]
Loss Contingencies [Line Items]
Number of cases pending				9,300
Subsequent Event [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Provision recorded number of cases | contract	0
Subsequent Event [Member] | Engle Progeny Cases [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of verdicts returned	137
Number of unfavorable verdicts	76
Number of claims with unfavorable verdicts pending/reversed	7
Number of favorable verdicts	54
Subsequent Event [Member] | Engle Progeny Cases, Federal [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of cases pending	2
Subsequent Event [Member] | Engle Progeny Cases, State [Member]
Loss Contingencies [Line Items]
Number of cases pending	969
Number of plaintiffs | plantiff	1,172
Subsequent Event [Member] | Engle Progeny Cases, State [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts	44
Subsequent Event [Member] | Engle Progeny Cases, Pearson, D Cohen, Collar, Chacon [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Verdicts reversed, number	4
Subsequent Event [Member] | Engle Progeny Cases, Reider and Banks [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Zero damages verdicts	2
Damages awarded, value | $	$ 0
Subsequent Event [Member] | Engle Progeny Cases, Weingart and Hancock [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Damages awarded, value | $	$ 0
Zero damages verdict modified	2
Subsequent Event [Member] | Engle Progeny Cases, Pollari [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts	1
Subsequent Event [Member] | Engle Progeny Cases, Gloger, Rintoul and Duignam [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts	3
Subsequent Event [Member] | Engle Progeny Cases, Freeman [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts	2