Contingencies (Non-Engle Progeny Litigation) (Details) - USD ($)	1 Months Ended	3 Months Ended
	Oct. 31, 2023	Mar. 31, 2025	Oct. 31, 2025	Apr. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Aug. 31, 2023	Feb. 28, 2023	Sep. 30, 2022
Non-Engle Progeny Smoking And Health Case, Perez-Trinidad [Member] | PM USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded			$ 1,000,000
Punitive damages awarded			$ 5,500,000
Non-Engle Progeny Smoking And Health Case, Amaral [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded		$ 4,000,000
Punitive damages awarded		25,000,000
Non-Engle Progeny Smoking And Health Case, Taylor [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded				$ 1,000,000
Non-Engle Progeny Smoking And Health Case, Ricapor-Hall [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded	$ 3,000,000						$ 6,000,000
Punitive damages awarded							$ 8,000,000
Damages awarded, value	$ 11,000,000
Non-Engle Progeny Smoking And Health Case, Woodley [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded								$ 5,000,000
Punitive damages awarded								$ 0
Pre-tax provision		$ 5,000,000
Non-Engle Progeny Smoking And Health Case, Fontaine [Member]
Loss Contingencies [Line Items]
Punitive damages awarded						$ 56,000,000
Non-Engle Progeny Smoking And Health Case, Fontaine [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded					$ 8,000,000				$ 8,000,000
Punitive damages awarded					$ 56,000,000				$ 1,000,000,000