Contingencies (Antitrust Litigation) (Details) - shareholder |
3 Months Ended | ||||
|---|---|---|---|---|---|
Jan. 25, 2021 |
Dec. 31, 2019 |
Dec. 31, 2020 |
Apr. 30, 2020 |
Dec. 31, 2018 |
|
| Loss Contingencies [Line Items] | |||||
| Loss contingency, number of shareholders filing class action lawsuits | 2 | ||||
| Subsequent Event [Member] | |||||
| Loss Contingencies [Line Items] | |||||
| Loss contingency, number of shareholders filing class action lawsuits | 16 | ||||
| JUUL [Member] | |||||
| Loss Contingencies [Line Items] | |||||
| Equity securities without readily determinable fair value, ownership percentage | 35.00% | 35.00% | 35.00% |