XML 48 R50.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Business Segments, Assets (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Identifiable Assets | $ 13,672.6 | $ 10,025.5
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 404.2 | 356.9
Reportable Subsegments [Member] | Americas [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Identifiable Assets | 8,256.4 | 5,288.9
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 23.9 | 17.0
Reportable Subsegments [Member] | EMEA [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Identifiable Assets | 2,658.4 | 2,325.4
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 2.4 | 3.5
Reportable Subsegments [Member] | Asia Pacific [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Identifiable Assets | 1,642.8 | 1,437.3
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 13.3 | 11.9
LaSalle [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Identifiable Assets | 774.5 | 666.8
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 321.7 | 305.8
Corporate [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Identifiable Assets | 340.5 | 307.1
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | $ 42.9 | $ 18.7

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in equity method investee and investment in and advance to affiliate. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_SegmentReportingAssetReconcilingItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_ReportableSubsegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=us-gaap_EMEAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jll_InvestmentManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_MaterialReconcilingItemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |