Contingencies (Health Care Cost Recovery Litigation) (Details) - Health Care Cost Recovery Actions [Member]	May 21, 2019	Apr. 14, 2014 patient	Oct. 17, 2008	Mar. 13, 2008	Feb. 26, 2008	May 25, 2007	May 09, 2007	Oct. 23, 2020 litigation_case	Oct. 22, 2019 litigation_case	Oct. 23, 2018 litigation_case
Brazil [Member] | Pending Litigation [Member] | The Attorney General of Brazil [Member]
Loss Contingencies [Line Items]
Damages sought, period of past reimbursements	6 years
Korea [Member]
Loss Contingencies [Line Items]
Damages sought, number of patients | patient		3,484
Nigeria [Member] | Pending Litigation [Member] | The Attorney General Of Lagos State [Member]
Loss Contingencies [Line Items]
Damages sought, period of past reimbursements				20 years
Damages sought, period of future reimbursements				20 years
Nigeria [Member] | Pending Litigation [Member] | The Attorney General Of Kano State [Member]
Loss Contingencies [Line Items]
Damages sought, period of past reimbursements							20 years
Damages sought, period of future reimbursements							20 years
Nigeria [Member] | Pending Litigation [Member] | The Attorney General Of Gombe State [Member]
Loss Contingencies [Line Items]
Damages sought, period of past reimbursements			20 years
Damages sought, period of future reimbursements			20 years
Nigeria [Member] | Pending Litigation [Member] | The Attorney General Of Oyo State [Member]
Loss Contingencies [Line Items]
Damages sought, period of past reimbursements						20 years
Damages sought, period of future reimbursements						20 years
Nigeria [Member] | Pending Litigation [Member] | The Attorney General Of Ogun State [Member]
Loss Contingencies [Line Items]
Damages sought, period of past reimbursements					20 years
Damages sought, period of future reimbursements					20 years
Combustible Products [Member]
Loss Contingencies [Line Items]
Cases brought against PM									17	16
Subsequent Event [Member] | Combustible Products [Member]
Loss Contingencies [Line Items]
Cases brought against PM								17
Subsequent Event [Member] | Combustible Products [Member] | Brazil [Member]
Loss Contingencies [Line Items]
Cases brought against PM								1
Subsequent Event [Member] | Combustible Products [Member] | Canada [Member]
Loss Contingencies [Line Items]
Cases brought against PM								10
Subsequent Event [Member] | Combustible Products [Member] | Korea [Member]
Loss Contingencies [Line Items]
Cases brought against PM								1
Subsequent Event [Member] | Combustible Products [Member] | Nigeria [Member]
Loss Contingencies [Line Items]
Cases brought against PM								5