Contingencies Smoking And Health Litigation (Details)	May 01, 2012	May 01, 2011	May 01, 2010
Individual Smoking And Health Cases [Member]
Cases brought against PM	76	93	119
Individual Smoking And Health Cases [Member] | Argentina [Member]
Cases brought against PM	31
Individual Smoking And Health Cases [Member] | Brazil [Member]
Cases brought against PM	31
Individual Smoking And Health Cases [Member] | CANADA
Cases brought against PM	2
Individual Smoking And Health Cases [Member] | Chile [Member]
Cases brought against PM	2
Individual Smoking And Health Cases [Member] | Greece [Member]
Cases brought against PM	1
Individual Smoking And Health Cases [Member] | ITALY
Cases brought against PM	5
Individual Smoking And Health Cases [Member] | The Philippines [Member]
Cases brought against PM	1
Individual Smoking And Health Cases [Member] | Scotland [Member]
Cases brought against PM	1
Individual Smoking And Health Cases [Member] | THAILAND
Cases brought against PM	1
Individual Smoking And Health Cases [Member] | Turkey [Member]
Cases brought against PM	1
Smoking And Health Class Actions [Member]
Cases brought against PM	10	11	9
Smoking And Health Class Actions [Member] | Brazil [Member]
Cases brought against PM	2
Smoking And Health Class Actions [Member] | CANADA
Cases brought against PM	8