Contingencies (Public Civil Actions and Other Litigation) (Narrative) (Details) $ in Millions, ₩ in Billions, THB in Billions					1 Months Ended				2 Months Ended
	Jan. 26, 2017 USD ($)	Jan. 26, 2017 THB	Jan. 18, 2016 USD ($) import_entry	Jan. 18, 2016 THB import_entry	Jan. 31, 2017 USD ($)	Jan. 31, 2017 KRW (₩)	Dec. 31, 2016 USD ($) litigation_case	Dec. 31, 2016 KRW (₩) litigation_case	Feb. 14, 2017 USD ($)	Feb. 14, 2017 KRW (₩)	Dec. 31, 2015 litigation_case	Dec. 31, 2014 litigation_case
Public Civil Actions [Member]
Loss Contingencies [Line Items]
Cases brought against PM							2	2			3	2
Public Civil Actions [Member] | Argentina [Member]
Loss Contingencies [Line Items]
Cases brought against PM							1	1
Public Civil Actions [Member] | Venezuela [Member]
Loss Contingencies [Line Items]
Cases brought against PM							1	1
The Department of Special Investigations of the Government of Thailand [Member] | Other Litigation [Member] | Thailand [Member]
Loss Contingencies [Line Items]
Number of defendants			8	8
Number of import entries | import_entry			272	272
Loss contingency, damages sought, value			$ 2,290	THB 80.8
The South Korean Board Of Audit And Inspection [Member] | Other Litigation [Member] | South Korea [Member]
Loss Contingencies [Line Items]
Payments for Legal Settlements							$ 85	₩ 100
Subsequent Event [Member] | The Department of Special Investigations of the Government of Thailand [Member] | Other Litigation [Member] | Thailand [Member]
Loss Contingencies [Line Items]
Number of import entries	780	780
Loss contingency, damages sought, value	$ 561	THB 19.8
Subsequent Event [Member] | The South Korean Board Of Audit And Inspection [Member] | Other Litigation [Member] | South Korea [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought, value									$ 47	₩ 54
Payments for Legal Settlements					$ 101	₩ 118