Contingencies (Lights Cases) (Details)	May 01, 2014 litigation_case	May 01, 2013 litigation_case	May 01, 2012 litigation_case
Israel [Member] | Lights Class Actions [Member]
Loss Contingencies [Line Items]
Cases brought against PM	1	2	2
CHILE | Individual Lights Cases [Member]
Loss Contingencies [Line Items]
Cases brought against PM	1
Italy [Member] | Individual Lights Cases [Member]
Loss Contingencies [Line Items]
Cases brought against PM	1	1	9