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Contingencies (Engle Progeny Cases Trial Results - Pending and Concluded) (Details) $ in Millions |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 26, 2021 USD ($) | Jun. 30, 2021 USD ($) case | May 31, 2021 USD ($) | Apr. 29, 2021 USD ($) | Mar. 31, 2021 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2018 USD ($) | Jun. 30, 2021 USD ($) case | Feb. 29, 2020 USD ($) | Jan. 31, 2020 USD ($) | Nov. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Feb. 28, 2019 USD ($) | Sep. 30, 2018 USD ($) | Jul. 31, 2018 USD ($) | Nov. 30, 2017 USD ($) | Apr. 30, 2017 USD ($) | Sep. 30, 2015 USD ($) | Jan. 31, 2015 USD ($)
Engle Progeny Cases, Garcia [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  | $ 3.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Duignan [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  | $ 3.0 |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Duignan [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  | $ 12.0 |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Cuddihee [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  | $ 3.0 |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Cuddihee [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Rintoul [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  | $ 9.0 |  |  |  |  |  |  |  |
Engle Progeny Cases, Rintoul [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  | 74.0 |  |  |  |  |  |  |  |
Engle Progeny Cases, Gloger [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  | 15.0 |  |  |  |  |  |  |  |
Engle Progeny Cases, Gloger [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  | $ 11.0 |  |  |  |  |  |  |  |
Engle Progeny Cases, McCall [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.0 |  |  |  |  |  |  |
Engle Progeny Cases, McCall [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  | 1.0 |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |
Engle Progeny Cases, Neff [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  | 4.0 |  |  |  |  |  |  |
Engle Progeny Cases, Neff [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.0 |  |  |  |  |  |  |
Engle Progeny Cases, Mahfuz [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12.0 |  |  |  |  |  |
Engle Progeny Cases, Mahfuz [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.0 |  |  |  |  |  |
Engle Progeny Cases, Holliman [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.0 |  |  |  |  |  |
Engle Progeny Cases, Holliman [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  |  |  |
Engle Progeny Cases, Chadwell [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.0 |  |  |  |  |
Engle Progeny Cases, Chadwell [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  |  |
Engle Progeny Cases, Kaplan [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.0 |  |  |  |
Engle Progeny Cases, Kaplan [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.0 |  |  |  |
Engle Progeny Cases, R. Douglas [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.0 |  |  |
Engle Progeny Cases, R. Douglas [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |
Engle Progeny Cases, Sommers [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.0 |  |
Provision related to litigation recorded |  |  |  |  |  |  |  |  | $ 1.0 |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  | $ 3.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Sommers [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |
Engle Progeny Cases, Cooper [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.0 |
Engle Progeny Cases, Cooper [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.0 |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |
Engle Progeny Cases, D. Brown [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8.0
Engle Progeny Cases, D. Brown [Member] | Pending Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Punitive damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9.0
Engle Progeny Cases, Berger [Member] | Settled Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  | 29.0 |  |  | $ 29.0 |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Santoro [Member] | Settled Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  | $ 1.0 |  | $ 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Dean (Kerrivan) [Member] | Settled Litigation [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pre-tax charges (gain) included in net earning |  |  |  |  |  | $ 26.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Landi [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  | $ 3.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Landi [Member] | Settled Litigation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  |  |  | $ 10.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Naugle, Gore, M. Brown, Jordan, Theis [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, number of cases with payments a year or more ago | case |  | 5 |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Naugle [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  |  |  |  |  | $ 8.0 |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Gore [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  |  |  |  |  | 2.0 |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, M. Brown [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  |  |  |  |  | 8.0 |  |  |  |  |  |  |  |  |  |  |
Judgments paid (approximately) |  |  |  | $ 8.2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Jordan [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value |  |  |  |  |  |  |  |  | $ 4.0 |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Theis [Member] | PM USA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Judgments paid (approximately) |  |  | $ 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Engle Progeny Cases, Theis [Member] | PM USA [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded, value | $ 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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