Contingencies (Engle Class Action And Engle Progeny Trial Results Narrative) (Details)		1 Months Ended				12 Months Ended				147 Months Ended
	Jan. 27, 2017 USD ($) case	Jun. 30, 2009 USD ($) case	Feb. 29, 2008 USD ($)	Jul. 31, 2006 USD ($) plantiff	May 31, 2001 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) case	Dec. 31, 2014 USD ($)	Dec. 31, 2008 court	Dec. 31, 2016 USD ($)	Jun. 30, 2014 case	Mar. 31, 2014 case	Jul. 31, 2000 USD ($)
Loss Contingencies [Line Items]
Payments made related to litigation | $						$ 190,000,000	$ 57,000,000	$ 8,000,000
Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Punitive damages awarded | $													$ 145,000,000,000
Litigation settlement, amount | $							$ 59,000,000
Number of cases with petitions for writ of certiorari												8
Number of cases with petitions for writ of certiorari denied											11
Engle Progeny Cases [Member] | FLORIDA
Loss Contingencies [Line Items]
Number of district courts with rulings | court									3
Number of rulings certified by trial court for interlocutory review | court									2
Engle Progeny Cases [Member] | Philip Morris USA [Member]
Loss Contingencies [Line Items]
Punitive damages awarded | $													$ 74,000,000,000
Amounts placed in escrow | $					$ 500,000,000
Period for members of decertified class to file individual actions against defendants				1 year
Number of cases with petitions for writ of certiorari												1
Engle Progeny Cases [Member] | Philip Morris USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending	3
Number of verdicts returned	105
Number of unfavorable verdicts	58
Number of favorable verdicts	44
Engle Progeny Cases, State [Member] | FLORIDA
Loss Contingencies [Line Items]
Florida bond cap | $		$ 200,000,000
Engle Progeny Cases, State [Member] | Escambia County, Florida [Member]
Loss Contingencies [Line Items]
Number of cases in which plaintiffs that challenged constitutionality of bond cap statute		1
Engle Progeny Cases, State [Member] | Alachua County, Florida [Member]
Loss Contingencies [Line Items]
Number of cases in which plaintiffs that challenged constitutionality of bond cap statute		3
Engle Progeny Cases, State [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending	2,600
Number of plaintiffs	3,500
Engle Progeny Cases, State [Member] | Philip Morris USA [Member]
Loss Contingencies [Line Items]
Number of claims resolved							7
Engle Progeny Cases, State [Member] | Philip Morris USA [Member] | FLORIDA
Loss Contingencies [Line Items]
Compensatory damages awarded | $				$ 6,900,000
Number of individual plaintiffs reinstated | plantiff				2
Payments made related to litigation | $			$ 3,000,000
Engle Progeny Cases, State [Member] | Philip Morris USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of favorable verdicts	35
Engle Progeny Cases, Federal [Member] | Philip Morris USA [Member]
Loss Contingencies [Line Items]
Amounts placed in escrow | $							$ 43,000,000			$ 43,000,000
Number of claims resolved							415
Engle Progeny Cases, Federal [Member] | Philip Morris USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending	14
Number of favorable verdicts	9
Engle Progeny Cases, Reider and Banks [Member] | Philip Morris USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Damages awarded, value | $	$ 0
Engle Progeny Cases, Weingart and Hancock [Member] | Philip Morris USA [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Damages awarded, value | $	$ 0