XML 57 R60.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue from services	$ 5,355.6	$ 5,513.9	$ 5,374.4
Outcome-Based Services
Disaggregation of Revenue [Line Items]
Revenue from services	641.4	515.1
Global Talent Solutions
Disaggregation of Revenue [Line Items]
Revenue from services	2,024.5	1,997.4
Americas Staffing
Disaggregation of Revenue [Line Items]
Revenue from services	2,320.1	2,417.7
Americas Staffing | Commercial
Disaggregation of Revenue [Line Items]
Revenue from services	1,502.3	1,679.6
Americas Staffing | Education
Disaggregation of Revenue [Line Items]
Revenue from services	451.9	428.0
Americas Staffing | PT
Disaggregation of Revenue [Line Items]
Revenue from services	332.4	272.2
Americas Staffing | Permanent Placement
Disaggregation of Revenue [Line Items]
Revenue from services	33.5	37.9
International Staffing
Disaggregation of Revenue [Line Items]
Revenue from services	1,025.9	1,116.6
International Staffing | Permanent Placement
Disaggregation of Revenue [Line Items]
Revenue from services	24.8	28.9
International Staffing | Staffing Solutions
Disaggregation of Revenue [Line Items]
Revenue from services	1,001.1	1,087.7
Talent Fulfillment
Disaggregation of Revenue [Line Items]
Revenue from services	1,383.1	1,482.3
Talent Fulfillment | Permanent Placement
Disaggregation of Revenue [Line Items]
Revenue from services	1.8	1.9
Talent Fulfillment | Staffing Solutions
Disaggregation of Revenue [Line Items]
Revenue from services	1,015.5	1,117.6
Talent Fulfillment | Talent Solutions
Disaggregation of Revenue [Line Items]
Revenue from services	365.8	362.8
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from services	$ (14.9)	$ (17.8)

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	srt_ProductOrServiceAxis=kelya_OutcomeBasedServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=kelya_GlobalTalentSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=kelya_AmericasStaffingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=kelya_CommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=kelya_EducationalStaffingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=kelya_PTMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=kelya_PermanentPlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=kelya_InternationalStaffingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=kelya_StaffingSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=kelya_TalentFulfillmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=kelya_TalentSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: