Contingencies (Engle Progeny Cases Trial Results - Pending and Concluded) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2022	Jun. 30, 2024	Oct. 31, 2023	Sep. 30, 2021	Mar. 31, 2019	Sep. 30, 2018	Jul. 31, 2018	Sep. 30, 2015
Engle Progeny Cases, Garcia [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded		$ 6
Engle Progeny Cases, Garcia [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded		10
Engle Progeny Cases, Garcia [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Damages awarded, value		3
Engle Progeny Cases, Chacon [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded			$ 1
Engle Progeny Cases, Chacon [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded			$ 1
Engle Progeny Cases, Schertzer [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded	$ 3
Engle Progeny Cases, Schertzer [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded	0
Fees and costs	$ 3
Engle Progeny Cases, Lipp [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded				$ 15
Engle Progeny Cases, Lipp [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded				$ 28
Engle Progeny Cases, McCall [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded					$ 1
Engle Progeny Cases, McCall [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded					1
Punitive damages awarded					$ 1
Engle Progeny Cases, Chadwell [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded						$ 2
Engle Progeny Cases, Chadwell [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded						$ 0
Engle Progeny Cases, Kaplan [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded							$ 2
Engle Progeny Cases, Kaplan [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded							$ 0
Engle Progeny Cases, Cooper [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded								$ 5
Engle Progeny Cases, Cooper [Member] | Pending Litigation [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded								1
Punitive damages awarded								$ 0
Engle Progeny Cases, Hoffman [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Damages awarded, value		3
Engle Progeny Cases, Levine [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Damages awarded, value		1
Engle Progeny Cases, Duignan [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Damages awarded, value		4
Engle Progeny Cases, Ferraiuolo [Member] | Settled Litigation [Member]
Loss Contingencies [Line Items]
Damages awarded, value		$ 1