Note 8 - Segment Disclosures (Details) - Segment Revenue Per Service (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	$ 1,330.8	$ 1,314.8
Americas Commercial [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	613.2	638.3
Americas PT [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	236.4	242.6
Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	849.6	880.9
EMEA Commercial [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	221.9	201.0
EMEA PT [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	47.7	43.5
EMEA [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	269.6	244.5
APAC Commercial [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	83.0	81.5
APAC PT [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	8.6	10.2
APAC [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	91.6	91.7
OCG [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	134.4	107.4
Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment Revenue from Services	$ (14.4)	$ (9.7)