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Segment Disclosures - Segment Revenue Per Service (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Revenue from Services
Segment revenue from services	$ 1,333.6	$ 1,375.5	$ 2,623.3	$ 2,724.6
Less: Intersegment revenue
Revenue from Services
Segment revenue from services	(4.3)	(4.8)	(8.6)	(9.7)
Americas Staffing | Reporting Segments
Revenue from Services
Segment revenue from services	575.6	542.4	1,148.7	1,096.5
Global Talent Solutions | Reporting Segments
Revenue from Services
Segment revenue from services	505.5	500.6	992.8	991.5
International Staffing | Reporting Segments
Revenue from Services
Segment revenue from services	$ 256.8	$ 337.3	$ 490.4	$ 646.3

X

- Definition

Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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+ References

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