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Contingencies (Engle Class Action And Engle Progeny Trial Results Narrative) (Details) (USD $) In Millions, unless otherwise specified | 1 Months Ended |  | 1 Months Ended | 12 Months Ended |  |  |  | 3 Months Ended
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Aug. 31, 2013 Engle Progeny Cases, State [Member] | Jun. 30, 2013 Engle Progeny Cases, State [Member] | Jan. 31, 2013 Engle Progeny Cases, State [Member] | Apr. 21, 2014 Engle Progeny Cases, State [Member] | Apr. 21, 2014 Engle Progeny Cases, Federal [Member] | Feb. 29, 2008 Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Florida Engle [Member] | Dec. 31, 2001 Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Florida Engle [Member] | Mar. 31, 2014 Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Florida Engle [Member] | Jul. 31, 2006 Smoking And Health Class Actions And Aggregated Claims Litigation [Member] Florida Engle [Member] | Apr. 21, 2014 Engle Progeny Cases [Member] Since January1999 [Member] | Mar. 31, 2014 Florida Engle [Member] Smoking And Health Class Actions And Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Claims Decided Unfavorably, Number |  |  |  |  |  |  |  |  |  | 28 |
Loss Contingency, Claims Decided Favorably, Number |  |  |  |  |  |  |  |  |  | 28 |
Number of plaintiffs |  |  |  | 4,250 |  |  |  |  |  |  |
Loss contingency, period of occurrence |  |  |  |  |  |  |  |  |  |  | July 2000
Punitive damages jury award total all defendants |  |  |  |  |  |  |  |  |  |  | $ 145,000
Punitive damages jury award allocation amount PM USA |  |  |  |  |  |  |  |  |  |  | 74,000.0
Amounts placed in escrow |  |  |  |  |  |  | 500 |  |  |  |
Reinstated compensatory damages, award total |  |  |  |  |  |  |  |  | 6.9 |  |
Loss contingency, damages paid |  |  |  |  |  | 3 |  |  |  |  |
Loss Contingency, Damages Paid Date |  |  |  |  |  | February 2008 |  |  |  |  |
Loss contingency, pending claims |  |  |  | 3,100 | 1,100 |  |  |  |  |  |
Active Cases Pending In Federal Court |  |  |  |  | 600 |  |  |  |  |  |
Federal Engle Progeny Cases Dismissed | 37 | 306 | 521 |  |  |  |  |  |  |  |
Florida bond cap |  |  |  |  |  |  |  | $ 200 |  |  |

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