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Stock Plans (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Minimum Retirement Age 58 years  
Deferred Compensation, Share-based Payments [Member]    
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Number of shares of stock awards granted during period (in shares) 1,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
2,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
Grant date fair value of stock awards, per share (in dollars per share) $ 82.28us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
$ 77.74us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
Compensation expense for stock awards $ 58us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
$ 66us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
Unrecognized compensation cost related to non-vested stock awards 251us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
 
Stock awards vested during period (in shares) 2,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
 
Deferred Compensation, Share-based Payments [Member] | Grant Date Fair Value [Member]    
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Fair value of vested stock awards 196us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
/ pm_ShareBasedCompensationComponentsAxis
= pm_GrantDateFairValueMember
 
Deferred Compensation, Share-based Payments [Member] | Total Fair Value [Member]    
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Fair value of vested stock awards $ 203us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
/ pm_ShareBasedCompensationComponentsAxis
= pm_TotalFairValueMember
 
Deferred Compensation, Share-based Payments [Member] | Minimum [Member]    
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Expected period for recognition of unamortized compensation expense, in years 3 years  
2012 Performance Incentive Plan [Member]    
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Estimated common stock to be awarded under a stock benefit plan, maximum limit (in shares) 30,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= pm_A2012PerformanceIncentivePlanMember
 
Shares available for grant under the plan (in shares) 23,252,170us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= pm_A2012PerformanceIncentivePlanMember
 
Non Employee Directors Plan [Member]    
Employee Service Share Based Compensation Allocation of Recognized Period Costs [Line Items]    
Estimated common stock to be awarded under a stock benefit plan, maximum limit (in shares) 1,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= pm_NonEmployeeDirectorsPlanMember
 
Shares available for grant under the plan (in shares) 715,185us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= pm_NonEmployeeDirectorsPlanMember
 
Percentage of voting shares that PMI may own, used in determining non-employee director status 50.00%pm_NonEmployeeDirectorOwnershipLimit
/ us-gaap_PlanNameAxis
= pm_NonEmployeeDirectorsPlanMember