Contingencies Contingencies (MSA Term Sheet Agreement) (Narrative) (Details) (USD $)	1 Months Ended		3 Months Ended		24 Months Ended	0 Months Ended	3 Months Ended			6 Months Ended	3 Months Ended
	May 31, 2013 state	Mar. 31, 2013 state	Mar. 31, 2015 state	Mar. 31, 2014	Dec. 31, 2014	Jul. 01, 2014	Dec. 31, 2013	Jun. 30, 2014	Mar. 31, 2013	Jun. 30, 2013	Dec. 31, 2014
Loss Contingencies [Line Items]
Number of States Joining Term Sheet	2		24
Number of States Not Joining Settlement		15
States Not Diligently Enforcing Escrow Statutes			6
States Diligently Enforcing Escrow Statute			9
Percentage of Signatory States Allocable Share of OPM Aggregate 2003-2012 NPM Adjustments Reduction of Future MSA Payments			46.00%
Earnings before income taxes			$ 1,562,000,000	$ 1,806,000,000
PM USA [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
Number of Non-contested States to the 2003 Diligent Enforcement Claims			14
Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member]
Loss Contingencies [Line Items]
Projected Litigation Settlement Interest			(89,000,000)
Litigation Settlement Interest			(64,000,000)
Projected Litigation Settlement Interest Not recorded			(25,000,000)
NPM Adjustment to Cost Of Sales [Member] | 2003 NPM Adjustment Amount [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
NPM Adjustment Items					599,000,000
NPM Adjustment Received As A Reduction To MSA payments					579,000,000
Amount Expected To Be Received As A Reduction To MSA payments					20,000,000
NPM Adjustment to Cost Of Sales [Member] | Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member]
Loss Contingencies [Line Items]
Projected Litigation Settlement, Amount							145,000,000
Appeals Bond Posted By Affiliate						22,000,000
NPM Adjustment to Cost Of Sales [Member] | Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
NPM Adjustment Items								36,000,000	483,000,000	519,000,000
NPM Adjustment to Cost Of Sales [Member] | Smokeable Products [Member] | PM USA [Member] | 2013 Transition Year Adjustment [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
NPM Adjustment Items			35,000,000
NPM Adjustment to Cost Of Sales [Member] | Smokeable Products [Member] | PM USA [Member] | 2014 Transition Year Adjustment [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
NPM Adjustment Items			41,000,000
Indiana/Kentucky [Member] | Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member]
Loss Contingencies [Line Items]
Projected Litigation Settlement, Amount								26,000,000
NPM Adjustment Items			54,000,000
Litigation Settlement Interest			(17,000,000)					17,000,000
Earnings before income taxes								26,000,000
Indiana/Kentucky [Member] | NPM Adjustment to Cost Of Sales [Member] | Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
NPM Adjustment Items				37,000,000			80,000,000	43,000,000
Indiana/Kentucky [Member] | NPM Adjustment to Cost Of Sales [Member] | Smokeable Products [Member] | PM USA [Member] | 2013 Transition Year Adjustment [Member] | Non-Participating Manufacturer Adjustment Settlement [Member]
Loss Contingencies [Line Items]
NPM Adjustment Items			3,000,000
Missouri [Member] | Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member]
Loss Contingencies [Line Items]
Litigation Settlement Amount Possible Refund to States			12,000,000
Projected Litigation Settlement Interest Possible Refund to State			7,000,000
Remaining non-diligent states [Member] | Smokeable Products [Member] | PM USA [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member]
Loss Contingencies [Line Items]
Projected Litigation Settlement, Amount											108,000,000
NPM Adjustment Items											79,000,000
Litigation settlement, amount Recovery available if Successful on Appeal											29,000,000
Projected Litigation Settlement Interest				(66,000,000)
Litigation Settlement Interest				(47,000,000)
Projected litigation settlement Interest Reduced Amount				(48,000,000)
Litigation settlement interest Recovery Available if Successful On Appeal				$ (18,000,000)
Remaining non-diligent states [Member] | Smokeable Products [Member] | PM USA [Member] | 2003 NPM Adjustment Amount [Member] | Non-Participating Manufacturer Arbitration Panel Decision [Member]
Loss Contingencies [Line Items]
States Not Diligently Enforcing Escrow Statutes			4