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v2.4.1.9

Benefit Plans (Effects of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates) (Details) | 12 Months Ended
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Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items] |
Effect on total of service and interest cost, One-Percentage-Point Increase | 6.30%mo_DefinedBenefitPlanEffectofOnePercentagePointIncreaseonServiceandInterestCostComponentsPercentage
Effect on total of service and interest cost, One-Percentage-Point Decrease | (5.40%)mo_DefinedBenefitPlanEffectofOnePercentagePointDecreaseonServiceandInterestCostComponentsPercentage
Postretirement Benefit Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Effect on postretirement benefit obligation, One-Percentage-Point Increase | 7.20%mo_DefinedBenefitPlanEffectofOnePercentagePointIncreaseonAccumulatedPostretirementBenefitObligationPercentage / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Effect on postretirement benefit obligation, One-Percentage-Point Decrease | (6.00%)mo_DefinedBenefitPlanEffectofOnePercentagePointDecreaseonAccumulatedPostretirementBenefitObligationPercentage / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember

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- Definition Defined Benefit Plan Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Percentage + References No definition available. + Details
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- Definition Defined Benefit Plan Effect of One Percentage Point Decrease on Service and Interest Cost Components Percentage + References No definition available. + Details
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- Definition Defined Benefit Plan Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Percentage + References No definition available. + Details
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- Definition Defined Benefit Plan Effect of One Percentage Point Increase on Service and Interest Cost Components Percentage + References No definition available. + Details
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