Contingencies Lights Cases (Details) (EUR €)	Aug. 01, 2012 Litigation_Cases	Aug. 01, 2011 Litigation_Cases	Aug. 01, 2010 Litigation_Cases
ISRAEL [Member] | Lights Class Actions [Member]
Loss Contingencies [Line Items]
Cases brought against PM	2	2	2
ITALY [Member] | Individual Lights Cases - Small Claims Court [Member]
Loss Contingencies [Line Items]
Cases brought against PM	7	9	10
Maximum damage award per case	1,000