$JLL
Jones Lang LaSalle Inc Stock $jll

$jll Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000103797621000009 Filed on February 18, 2021

Income Statement

Concept	2020 Q4	2020 Q1	2019 Q4
Revenue	$4.845B	$4.096B	$5.401B
YoY Change	-10.28%	7.21%	10.45%
Cost Of Revenue	$2.098B	$1.863B	$2.226B
YoY Change	-5.72%	0.22%	7.6%
Gross Profit	$2.747B	$2.233B	$3.175B
YoY Change	-13.47%	13.84%	12.53%
Gross Profit Margin	56.7%	54.52%	58.79%
Selling, General & Admin	$2.292B	$2.099B	$2.680B
YoY Change	-14.46%	12.2%	11.26%
% of Gross Profit	83.44%	94.01%	84.4%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$59.60M	$55.00M	$56.80M
YoY Change	4.93%	18.28%	3.27%
% of Gross Profit	2.17%	2.46%	1.79%
Operating Expenses	$2.352B	$4.031B	$5.032B
YoY Change	-53.26%	6.22%	9.94%
Operating Profit	$395.4M	$64.60M	$368.3M
YoY Change	7.36%	154.33%	17.89%
Interest Expense	-$4.400M	-$42.90M	-$11.20M
YoY Change	-60.71%	832.61%	119.61%
% of Operating Profit	-1.11%	-66.41%	-3.04%
Other Income/Expense, Net	$6.500M	$900.0K	$1.100M
YoY Change	490.91%	-400.0%	-91.85%
Pretax Income	$330.9M	$22.60M	$358.2M
YoY Change	-7.62%	10.24%	11.66%
Income Tax	$74.70M	$5.000M	$86.40M
% Of Pretax Income	22.57%	22.12%	24.12%
Net Earnings	$250.1M	$5.300M	$274.4M
YoY Change	-8.86%	-75.12%	36.31%
Net Earnings / Revenue	5.16%	0.13%	5.08%
Basic Earnings Per Share		$0.10	$5.31
Diluted Earnings Per Share	$4.764M	$0.10	$5.23
COMMON SHARES
Basic Shares Outstanding	51.30M shares	51.61M shares	51.53M shares
Diluted Shares Outstanding		52.46M shares

Balance Sheet

Concept	2020 Q4	2020 Q1	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$574.0M	$721.0M	$452.0M
YoY Change	26.99%	84.87%	-6.03%
Cash & Equivalents	$574.3M	$720.7M	$451.9M
Short-Term Investments
Other Short-Term Assets	$1.978B	$1.955B	$2.049B
YoY Change	-3.47%	5.16%	9.98%
Inventory
Prepaid Expenses
Receivables	$1.636B	$1.725B	$2.034B
Other Receivables	$1.999B	$1.470B	$1.000B
Total Short-Term Assets	$6.454B	$6.197B	$5.869B
YoY Change	9.97%	23.26%	12.73%
LONG-TERM ASSETS
Property, Plant & Equipment	$663.9M	$678.4M	$701.9M
YoY Change	-5.41%	17.27%	23.6%
Goodwill	$4.225B	$4.104B	$4.168B
YoY Change	1.36%	49.88%	54.5%
Intangibles	$679.8M	$658.7M	$682.6M
YoY Change	-0.41%	94.48%	102.61%
Long-Term Investments	$431.0M	$391.0M	$404.0M
YoY Change	6.68%	8.01%	13.17%
Other Assets	$182.3M	$202.4M	$197.2M
YoY Change	-7.56%	3.53%	2.34%
Total Long-Term Assets	$7.863B	$7.704B	$7.804B
YoY Change	0.75%	39.43%	61.93%
TOTAL ASSETS
Total Short-Term Assets	$6.454B	$6.197B	$5.869B
Total Long-Term Assets	$7.863B	$7.704B	$7.804B
Total Assets	$14.32B	$13.90B	$13.67B
YoY Change	4.71%	31.73%	36.38%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.230B	$1.096B	$1.289B
YoY Change	-4.58%	11.16%	2.22%
Accrued Expenses	$1.599B	$1.198B	$1.883B
YoY Change	-15.08%	2.92%	17.32%
Deferred Revenue
YoY Change
Short-Term Debt	$62.00M	$937.0M	$120.1M
YoY Change	-48.38%	685.41%	267.28%
Long-Term Debt Due	$0.00	$125.0M	$120.0M
YoY Change	-100.0%	5.04%	263.64%
Total Short-Term Liabilities	$6.128B	$4.987B	$5.490B
YoY Change	11.61%	18.42%	15.3%
LONG-TERM LIABILITIES
Long-Term Debt	$693.0M	$2.095B	$1.177B
YoY Change	-41.12%	78.45%	79.42%
Other Long-Term Liabilities	$597.5M	$483.7M	$436.2M
YoY Change	36.98%	43.96%	12.63%
Total Long-Term Liabilities	$597.5M	$483.7M	$436.2M
YoY Change	36.98%	43.96%	12.63%
TOTAL LIABILITIES
Total Short-Term Liabilities	$6.128B	$4.987B	$5.490B
Total Long-Term Liabilities	$597.5M	$483.7M	$436.2M
Total Liabilities	$8.699B	$8.863B	$8.459B
YoY Change	2.83%	31.33%	34.47%
SHAREHOLDERS EQUITY
Retained Earnings	$3.976B	$3.573B	$3.588B
YoY Change	10.8%	14.64%	15.91%
Common Stock	$2.024B	$1.970B	$1.963B
YoY Change	3.08%	86.37%	85.6%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$96.10M	$25.00M	$0.00
YoY Change
Treasury Stock Shares	864.9K shares		0.000 shares
Shareholders Equity	$5.521B	$4.947B	$5.118B
YoY Change
Total Liabilities & Shareholders Equity	$14.32B	$13.90B	$13.67B
YoY Change	4.71%	31.73%	36.38%

Cashflow Statement

Concept	2020 Q4	2020 Q1	2019 Q4
OPERATING ACTIVITIES
Net Income	$250.1M	$5.300M	$274.4M
YoY Change	-8.86%	-75.12%	36.31%
Depreciation, Depletion And Amortization	$59.60M	$55.00M	$56.80M
YoY Change	4.93%	18.28%	3.27%
Cash From Operating Activities	$751.6M	-$546.1M	$735.3M
YoY Change	2.22%	-0.98%	21.66%
INVESTING ACTIVITIES
Capital Expenditures	-$36.90M	-$44.40M	-$135.9M
YoY Change	-72.85%	-384.62%	112.34%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	-$9.500M	$2.300M	$80.30M
YoY Change	-111.83%	228.57%	-216.04%
Cash From Investing Activities	-$46.40M	-$90.50M	-$55.60M
YoY Change	-16.55%	-0.55%	-58.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$25.00M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-527.4M	$883.3M	-610.0M
YoY Change	-13.54%	49.0%	94.39%
NET CHANGE
Cash From Operating Activities	751.6M	-$546.1M	735.3M
Cash From Investing Activities	-46.40M	-$90.50M	-55.60M
Cash From Financing Activities	-527.4M	$883.3M	-610.0M
Net Change In Cash	177.8M	$225.6M	69.70M
YoY Change	155.09%	-560.41%	-55.72%
FREE CASH FLOW
Cash From Operating Activities	$751.6M	-$546.1M	$735.3M
Capital Expenditures	-$36.90M	-$44.40M	-$135.9M
Free Cash Flow	$788.5M	-$501.7M	$871.2M
YoY Change	-9.49%	-11.53%	30.34%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Registrant Name EntityRegistrantName	Jones Lang LaSalle Incorporated
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001037976
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q2	dei	Entity Public Float EntityPublicFloat	5309965418	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	51110770	shares
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	66500000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	68100000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss Current ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent	1800000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss Current ContractWithCustomerAssetAccumulatedAllowanceForCreditLossCurrent	0	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	806200000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	660700000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	295300000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	214800000	USD
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	340300000	USD
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	328600000	USD
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	864890	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	51970307	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	51549654	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	51105417	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	51549654	shares
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.86
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.82
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.79
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.70
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Entity File Number EntityFileNumber	1-13145
CY2020	dei	Entity Registrant Name EntityRegistrantName	Jones Lang LaSalle Incorporated
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	36-4150422
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	200 East Randolph Drive
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Chicago,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60601
CY2020	dei	City Area Code CityAreaCode	(312)
CY2020	dei	Local Phone Number LocalPhoneNumber	782-5800
CY2020	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01
CY2020	dei	Trading Symbol TradingSymbol	JLL
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	5309965418	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	51110770	shares
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	574300000	USD
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CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1636100000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2034300000	USD
CY2020Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	469900000	USD
CY2019Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	472800000	USD
CY2020Q4	jll	Accounts Receivable Reimbursedby Client Current AccountsReceivableReimbursedbyClientCurrent	1461300000	USD
CY2019Q4	jll	Accounts Receivable Reimbursedby Client Current AccountsReceivableReimbursedbyClientCurrent	1671200000	USD
CY2020Q4	jll	Loans Receivable Gross Mortgage Warehouse Lending. LoansReceivableGrossMortgageWarehouseLending.	1529200000	USD
CY2019Q4	jll	Loans Receivable Gross Mortgage Warehouse Lending. LoansReceivableGrossMortgageWarehouseLending.	527100000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	265800000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	333400000	USD
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CY2019Q4	us-gaap	Assets Current AssetsCurrent	5868600000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	663900000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	701900000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	707400000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	804400000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	4224700000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4168200000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	679800000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	682600000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	430800000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	404200000	USD
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CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	296500000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	245400000	USD
CY2020Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	446300000	USD
CY2019Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	349900000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	182300000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	197200000	USD
CY2020Q4	us-gaap	Assets Assets	14316500000	USD
CY2019Q4	us-gaap	Assets Assets	13672600000	USD
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CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1289400000	USD
CY2020Q4	jll	Accounts Payable Reimbursedby Client Current AccountsPayableReimbursedbyClientCurrent	1154500000	USD
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CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1433200000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1729200000	USD
CY2020Q4	jll	Shortterm Debt ShorttermDebt	62000000.0	USD
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CY2020Q4	us-gaap	Warehouse Agreement Borrowings WarehouseAgreementBorrowings	1498400000	USD
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CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	165700000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	153400000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	299600000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	203200000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6127800000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	5490200000	USD
CY2020Q4	jll	Longterm Lineof Credit Noncurrent Netof Debt Issuance Costs LongtermLineofCreditNoncurrentNetofDebtIssuanceCosts	-8700000	USD
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CY2020Q4	us-gaap	Senior Long Term Notes SeniorLongTermNotes	702000000.0	USD
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CY2020Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	26200000	USD
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CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	683900000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	751200000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	597500000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	436200000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	8698700000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	8459300000	USD
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	7800000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	8600000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	500000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	500000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2023300000	USD
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CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	96100000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Held In Trust CommonStockHeldInTrust	5600000	USD
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CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-377200000	USD
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CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	5520800000	USD
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CY2020Q4	us-gaap	Minority Interest MinorityInterest	89200000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	86600000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5610000000.0	USD
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CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14316500000	USD
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CY2020	jll	Revenue Before Reimbursements RevenueBeforeReimbursements	8900100000	USD
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CY2018	jll	Revenue Before Reimbursements RevenueBeforeReimbursements	9089500000	USD
CY2020	jll	Reimbursement Revenues ReimbursementRevenues	7689800000	USD
CY2019	jll	Reimbursement Revenues ReimbursementRevenues	7952600000	USD
CY2018	jll	Reimbursement Revenues ReimbursementRevenues	7228900000	USD
CY2020	us-gaap	Revenues Revenues	16589900000	USD
CY2019	us-gaap	Revenues Revenues	17983200000	USD
CY2018	us-gaap	Revenues Revenues	16318400000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5268800000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5812700000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5206800000	USD
CY2020	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	2703400000	USD
CY2019	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	3115700000	USD
CY2018	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	2950900000	USD
CY2020	jll	Costof Reimbursable Expenses CostofReimbursableExpenses	7689800000	USD
CY2019	jll	Costof Reimbursable Expenses CostofReimbursableExpenses	7952600000	USD
CY2018	jll	Costof Reimbursable Expenses CostofReimbursableExpenses	7228900000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	226400000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	202400000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	186100000	USD
CY2020	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	142400000	USD
CY2019	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	184400000	USD
CY2018	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	38800000	USD
CY2020	us-gaap	Operating Expenses OperatingExpenses	16030800000	USD
CY2019	us-gaap	Operating Expenses OperatingExpenses	17267800000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	15611500000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	559100000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	715400000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	706900000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-52800000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-56400000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-51100000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8000000.0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	36300000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	32800000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	15300000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2300000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	17400000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	529600000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	697600000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	706000000.0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	106900000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159700000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	214300000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	422700000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	537900000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	491700000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	20200000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2600000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7200000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	402500000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	535300000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	484500000	USD
CY2020	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	0	USD
CY2019	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	900000	USD
CY2018	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	400000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	402500000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	534400000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	484100000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.79
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.98
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.64
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51683000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48647000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45517000	shares
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.70
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.87
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.54
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52282000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49154000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45931000	shares
CY2020	us-gaap	Net Income Loss NetIncomeLoss	402500000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	535300000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	484500000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	9200000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	14600000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-3100000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	59800000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	43000000.0	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-118200000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	453100000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	563700000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	369400000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3378200000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	491700000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2900000	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	12400000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26800000	USD
CY2018	jll	Increase Decrease In Common Stock Held In Trust IncreaseDecreaseInCommonStockHeldInTrust	100000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	37800000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-3100000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-118200000	USD
CY2018	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-2300000	USD
CY2018	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	2400000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3734500000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	537700000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3700000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	841200000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	13600000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	74200000	USD
CY2019	jll	Increase Decrease In Common Stock Held In Trust IncreaseDecreaseInCommonStockHeldInTrust	100000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	42700000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	14600000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	43000000.0	USD
CY2019	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	41200000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5204700000	USD
CY2020	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	423000000.0	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4100000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	23500000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	83800000	USD
CY2020	jll	Increase Decrease In Common Stock Held In Trust IncreaseDecreaseInCommonStockHeldInTrust	100000	USD
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	896937	shares
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	100000000.0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	9200000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	59800000	USD
CY2020	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-17900000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5610000000.0	USD
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-300000	USD
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	200000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	422700000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	537900000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	491700000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	226400000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	202400000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	186100000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8000000.0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	36300000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	32800000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-1200000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-900000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	12900000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	11700000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	21000000.0	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	59500000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	45600000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	30800000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	18800000	USD
CY2020	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	83800000	USD
CY2019	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	74200000	USD
CY2018	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	26800000	USD
CY2020	jll	Net Non Cash Mortgage Servicing Rights And Mortgage Banking Derivative Activity NetNonCashMortgageServicingRightsAndMortgageBankingDerivativeActivity	-66600000	USD
CY2019	jll	Net Non Cash Mortgage Servicing Rights And Mortgage Banking Derivative Activity NetNonCashMortgageServicingRightsAndMortgageBankingDerivativeActivity	-21200000	USD
CY2018	jll	Net Non Cash Mortgage Servicing Rights And Mortgage Banking Derivative Activity NetNonCashMortgageServicingRightsAndMortgageBankingDerivativeActivity	-8300000	USD
CY2020	us-gaap	Accretion Expense AccretionExpense	5100000	USD
CY2019	us-gaap	Accretion Expense AccretionExpense	5300000	USD
CY2018	us-gaap	Accretion Expense AccretionExpense	4900000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-27100000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	11300000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-10000000.0	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-414300000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	330000000.0	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	229500000	USD
CY2020	jll	Increase Decreasein Reimbursable Receivablesand Reimbursable Payables IncreaseDecreaseinReimbursableReceivablesandReimbursablePayables	122200000	USD
CY2019	jll	Increase Decreasein Reimbursable Receivablesand Reimbursable Payables IncreaseDecreaseinReimbursableReceivablesandReimbursablePayables	26200000	USD
CY2018	jll	Increase Decreasein Reimbursable Receivablesand Reimbursable Payables IncreaseDecreaseinReimbursableReceivablesandReimbursablePayables	-215600000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	32900000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	110000000.0	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	229200000	USD
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	37100000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	18700000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	25200000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	177100000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-64700000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	372400000	USD
CY2020	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-223700000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	154700000	USD
CY2018	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	207400000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1114700000	USD
CY2020	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	44400000	USD
CY2019	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	77300000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	483800000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	604100000	USD
CY2020	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	149400000	USD
CY2019	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	187800000	USD
CY2018	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	161900000	USD
CY2020	jll	Netinvestmentactivitylessthanwhollyowned Netinvestmentactivitylessthanwhollyowned	-1000000.0	USD
CY2019	jll	Netinvestmentactivitylessthanwhollyowned Netinvestmentactivitylessthanwhollyowned	79200000	USD
CY2018	jll	Netinvestmentactivitylessthanwhollyowned Netinvestmentactivitylessthanwhollyowned	14300000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	801300000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	101300000	USD
CY2020	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	80300000	USD
CY2019	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	137700000	USD
CY2018	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	58800000	USD
CY2020	us-gaap	Proceeds From Real Estate And Real Estate Joint Ventures ProceedsFromRealEstateAndRealEstateJointVentures	41500000	USD
CY2019	us-gaap	Proceeds From Real Estate And Real Estate Joint Ventures ProceedsFromRealEstateAndRealEstateJointVentures	113800000	USD
CY2018	us-gaap	Proceeds From Real Estate And Real Estate Joint Ventures ProceedsFromRealEstateAndRealEstateJointVentures	51900000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-16600000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-42500000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4000000.0	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-170600000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1049700000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-280400000	USD
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	5217000000.0	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	5864000000.0	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	3145000000.0	USD
CY2020	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	5742000000.0	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	5339000000.0	USD
CY2018	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	3145000000.0	USD
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-64300000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	86800000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-41400000	USD
CY2018	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	57100000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	23500000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	13600000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	12400000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100000000.0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	42700000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37800000	USD
CY2020	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-900000	USD
CY2019	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	40600000	USD
CY2018	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	3600000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13100000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	65800000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	3800000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-771200000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	584600000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-141300000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	14800000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-800000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-19900000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	187700000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	17900000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	162500000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	652100000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	634200000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	471700000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	839800000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	652100000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	634200000	USD
CY2020Q4	jll	Restricted Cash Beginning Of Period RestrictedCashBeginningOfPeriod	200200000	USD
CY2019Q4	jll	Restricted Cash Beginning Of Period RestrictedCashBeginningOfPeriod	153300000	USD
CY2018Q4	jll	Restricted Cash Beginning Of Period RestrictedCashBeginningOfPeriod	203700000	USD
CY2020Q4	jll	Restricted Cashendofperiod RestrictedCashendofperiod	265500000	USD
CY2019Q4	jll	Restricted Cashendofperiod RestrictedCashendofperiod	200200000	USD
CY2018Q4	jll	Restricted Cashendofperiod RestrictedCashendofperiod	153300000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	50200000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	58500000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	49200000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-138500000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-280800000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-153400000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	191400000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	171200000	USD
CY2020	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	0	USD
CY2019	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	846100000	USD
CY2018	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	11600000	USD
CY2020	jll	Business Combinations Guaranteed Deferred Acquisition Obligation BusinessCombinationsGuaranteedDeferredAcquisitionObligation	0	USD
CY2019	jll	Business Combinations Guaranteed Deferred Acquisition Obligation BusinessCombinationsGuaranteedDeferredAcquisitionObligation	17000000.0	USD
CY2018	jll	Business Combinations Guaranteed Deferred Acquisition Obligation BusinessCombinationsGuaranteedDeferredAcquisitionObligation	3900000	USD
CY2020	us-gaap	Nature Of Operations NatureOfOperations	<div style="margin-bottom:6pt;margin-top:12pt;padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:130%">1. ORGANIZATION</span></div><div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:130%">Jones Lang LaSalle Incorporated ("Jones Lang LaSalle," which we may refer to as "JLL," "we," "us," "our," or the "Company") was incorporated in 1997. We have corporate offices worldwide and nearly 91,000 employees, including approximately 41,100 employees whose costs are reimbursed by our clients. We provide comprehensive integrated real estate and investment management expertise on a local, regional and global level to owner, occupier and investor clients. We are an industry leader in property and facility management services, with a managed portfolio of approximately 5.4 billion square feet worldwide as of December 31, 2020. LaSalle Investment Management ("LaSalle") is one of the world's largest and most diversified real estate investment management firms, with $68.9 billion of assets under management (unaudited) as of December 31, 2020.</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:130%">The following table shows our revenue by service line.</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:45.328%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.757%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.757%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.758%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Year Ended December 31,</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(in millions)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2019</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2018</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Real Estate Services:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Leasing</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,884.2</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,524.0 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,372.1 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Capital Markets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,407.4</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,542.2 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,145.4 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Property & Facility Management</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">9,485.4</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,364.7 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,782.8 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Project & Development Services</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2,530.1</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,121.5 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,669.0 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Advisory, Consulting and Other</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">861.0</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">904.7 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">815.2 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">LaSalle</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">421.8</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">526.1 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">533.9 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Total revenue</span></td><td style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">16,589.9</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">17,983.2 </span></td><td style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">16,318.4 </span></td><td style="background-color:#ffffff;border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-bottom:9pt;margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:130%">We work for a broad range of clients representing a wide variety of industries in markets throughout the world. Our clients vary greatly in size and include for-profit and not-for-profit entities of all kinds, public-private partnerships and governmental (public sector) entities looking to outsource real estate services. We provide real estate investment management services on a global basis for both public and private assets through LaSalle. Our integrated global business model, industry-leading research capabilities, client relationship management focus, consistent worldwide service delivery and strong brand are attributes that enhance our services.</span></div>
CY2020Q4	dei	Entity Number Of Employees EntityNumberOfEmployees	91000	employee
CY2020Q4	jll	Number Of Employees Whose Costs Are Reimbursed By Clients NumberOfEmployeesWhoseCostsAreReimbursedByClients	41100	employee
CY2020Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	5400000000	sqft
CY2020Q4	us-gaap	Assets Under Management Carrying Amount AssetsUnderManagementCarryingAmount	68900000000	USD
CY2020	us-gaap	Revenues Revenues	16589900000	USD
CY2019	us-gaap	Revenues Revenues	17983200000	USD
CY2018	us-gaap	Revenues Revenues	16318400000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	3800000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-3800000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	0	USD
CY2019	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	8400000	USD
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	200000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	8600000	USD
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-300000	USD
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	500000	USD
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	7800000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:130%">Use of Estimates</span></div><div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:130%">The preparation of the Consolidated Financial Statements in conformity with U.S. GAAP requires us to make estimates and assumptions about future events that affect reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and reported amounts of revenue and expenses during the reporting periods. Such estimates include the value and allocation of purchase consideration, valuation of accounts receivable, Reimbursable receivables, Warehouse receivables, Investments in real estate ventures, Goodwill, intangible assets, derivative financial instruments, other long-lived assets, earn-out liabilities, legal contingencies, assumptions used in the calculation of income taxes, incentive compensation, self-insurance program liabilities, and retirement and other post-employment benefits, among others.</span></div><div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:130%">These estimates and assumptions are based on management's best estimate and judgment. We evaluate these estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which we believe to be reasonable under the circumstances. We adjust such estimates and assumptions when facts and circumstances dictate. Market factors, such as illiquid credit markets, volatile equity markets and foreign currency exchange rate fluctuations can increase the uncertainty in such estimates and assumptions. Because future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. Although actual amounts may differ from such estimated amounts, we believe such differences are not likely to be material.</span></div>
CY2020	jll	Percentageof Revenue Constrainedduetouncertainty PercentageofRevenueConstrainedduetouncertainty	0.05
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	347800000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	419300000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	2100000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	345700000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	419300000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	111000000.0	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	87700000	USD
CY2020	jll	Percentageof Revenue Remaining Performance Obligation PercentageofRevenueRemainingPerformanceObligation	0.05
CY2020Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	460100000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	586600000	USD
CY2020	jll	Bank Servicing Fees. BankServicingFees.	80000000.0	USD
CY2019	jll	Bank Servicing Fees. BankServicingFees.	63000000.0	USD
CY2018	jll	Bank Servicing Fees. BankServicingFees.	49600000	USD
CY2020Q4	jll	Loan Loss Guarantee Reserve LoanLossGuaranteeReserve	36700000	USD
CY2020Q4	jll	Loanlossaccrual Loanlossaccrual	22100000	USD
CY2019Q4	jll	Loanlossaccrual Loanlossaccrual	20600000	USD
CY2020Q4	jll	Mortgage Servicing Rights MortgageServicingRights	424300000	USD
CY2019Q4	jll	Mortgage Servicing Rights MortgageServicingRights	376400000	USD
CY2020Q4	us-gaap	Mortgage Backed Securities Held To Maturity Fair Value Disclosure MortgageBackedSecuritiesHeldToMaturityFairValueDisclosure	459600000	USD
CY2019Q4	us-gaap	Mortgage Backed Securities Held To Maturity Fair Value Disclosure MortgageBackedSecuritiesHeldToMaturityFairValueDisclosure	423700000	USD
CY2020	us-gaap	Depreciation Depreciation	169300000	USD
CY2019	us-gaap	Depreciation Depreciation	157600000	USD
CY2018	us-gaap	Depreciation Depreciation	156500000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1470100000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1362600000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	806200000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	660700000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	663900000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	701900000	USD
CY2020Q4	jll	Equity Method Investment Ownership Percentage Minimum EquityMethodInvestmentOwnershipPercentageMinimum	0.01
CY2020Q4	jll	Equity Method Investment Ownership Percentage Maximum EquityMethodInvestmentOwnershipPercentageMaximum	0.10
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-4600000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2400000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-4100000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	68100000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	71700000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	245400000	USD
CY2020Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	250900000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	1700000	USD
CY2020Q1	jll	Loan Loss Guarantee Reserve LoanLossGuaranteeReserve	15100000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3588300000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3573400000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8000000.0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	36300000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	32800000	USD
CY2020	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	142400000	USD
CY2019	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	184400000	USD
CY2018	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	38800000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	559100000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	715400000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	706900000	USD
CY2020	us-gaap	Revenues Revenues	16589900000	USD
CY2019	us-gaap	Revenues Revenues	17983200000	USD
CY2018	us-gaap	Revenues Revenues	16318400000	USD
CY2020	jll	Paymentfor Contingent Consideration Liability Total PaymentforContingentConsiderationLiabilityTotal	67700000	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	40400000	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	3800000	USD
CY2019	jll	Business Combinations Guaranteed Deferred Acquisition Obligation BusinessCombinationsGuaranteedDeferredAcquisitionObligation	17000000.0	USD
CY2019	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	12700000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	4700000	USD
CY2019	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	8400000	USD
CY2019	jll	Paymentfor Contingent Consideration Liability Total PaymentforContingentConsiderationLiabilityTotal	104700000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1460500000	USD
CY2019Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	25400000	USD
CY2020Q4	jll	Number Of Acquisitions Subject To Potential Earn Out Payments Provisions NumberOfAcquisitionsSubjectToPotentialEarnOutPaymentsProvisions	35	acquisition
CY2019Q4	jll	Number Of Acquisitions Subject To Potential Earn Out Payments Provisions NumberOfAcquisitionsSubjectToPotentialEarnOutPaymentsProvisions	44	acquisition
CY2020Q4	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	199200000	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	268900000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	4224700000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	625800000	USD
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	54000000.0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	2697800000	USD
CY2019	jll	Goodwill Additions Net Of Adjustments GoodwillAdditionsNetOfAdjustments	1461500000	USD
CY2019	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	4400000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	13300000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4168200000	USD
CY2020	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	700000	USD
CY2019	jll	Accelerated Depreciationon Intangibles AcceleratedDepreciationonIntangibles	500000	USD
CY2019	jll	Accumulated Amortization Finite Lived Intangible Assets Translation Adjustments AccumulatedAmortizationFiniteLivedIntangibleAssetsTranslationAdjustments	200000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	214800000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	148200000	USD
CY2020	jll	Accumulated Amortization Adjustmentforfully Amortized Intangibles AccumulatedAmortizationAdjustmentforfullyAmortizedIntangibles	69200000	USD
CY2020	jll	Accumulated Amortization Finite Lived Intangible Assets Translation Adjustments AccumulatedAmortizationFiniteLivedIntangibleAssetsTranslationAdjustments	1500000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	295300000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	679800000	USD
CY2020	us-gaap	Servicing Asset At Amortized Cost Other Than Temporary Impairments ServicingAssetAtAmortizedCostOtherThanTemporaryImpairments	23700000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	57200000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	4224700000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	506700000	USD
CY2019	jll	Finite And Indefinite Lived Intangible Assets Additions FiniteAndIndefiniteLivedIntangibleAssetsAdditions	454000000.0	USD
CY2019	jll	Adjustment For Fully Amortized Intangibles AdjustmentForFullyAmortizedIntangibles	64100000	USD
CY2019	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	500000	USD
CY2019	jll	Finite And Indefinite Lived Intangible Assets Translation Adjustments FiniteAndIndefiniteLivedIntangibleAssetsTranslationAdjustments	1300000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	897400000	USD
CY2020	jll	Finite And Indefinite Lived Intangible Assets Additions FiniteAndIndefiniteLivedIntangibleAssetsAdditions	139500000	USD
CY2020	jll	Adjustment For Fully Amortized Intangibles AdjustmentForFullyAmortizedIntangibles	69200000	USD
CY2020	jll	Finite And Indefinite Lived Intangible Assets Translation Adjustments FiniteAndIndefiniteLivedIntangibleAssetsTranslationAdjustments	7400000	USD
CY2020Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	975100000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	169800000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	109800000	USD
CY2019	jll	Accumulated Amortization Adjustmentforfully Amortized Intangibles AccumulatedAmortizationAdjustmentforfullyAmortizedIntangibles	64100000	USD
CY2019	us-gaap	Servicing Asset At Amortized Cost Other Than Temporary Impairments ServicingAssetAtAmortizedCostOtherThanTemporaryImpairments	16600000	USD
CY2020	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	100000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	120600000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	108700000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	100400000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	88400000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	63200000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	144500000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	625800000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	430800000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	404200000	USD
CY2020Q4	jll	Number Of Separate Property Or Fund Co Investments NumberOfSeparatePropertyOrFundCoInvestments	50	investment
CY2020Q4	jll	Variable Interest Entity Nonconsolidated Carrying Amount Net Assets And Liabilities VariableInterestEntityNonconsolidatedCarryingAmountNetAssetsAndLiabilities	76400000	USD
CY2019Q4	jll	Variable Interest Entity Nonconsolidated Carrying Amount Net Assets And Liabilities VariableInterestEntityNonconsolidatedCarryingAmountNetAssetsAndLiabilities	65500000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	12700000	USD
CY2020Q4	jll	Equity Method Investment Summarized Information Noncurrent Assets EquityMethodInvestmentSummarizedInformationNoncurrentAssets	24320400000	USD
CY2019Q4	jll	Equity Method Investment Summarized Information Noncurrent Assets EquityMethodInvestmentSummarizedInformationNoncurrentAssets	22006600000	USD
CY2020Q4	jll	Equity Method Investment Summarized Information Assets EquityMethodInvestmentSummarizedInformationAssets	28129300000	USD
CY2019Q4	jll	Equity Method Investment Summarized Information Assets EquityMethodInvestmentSummarizedInformationAssets	24784800000	USD
CY2020Q4	jll	Equity Method Investment Summarized Financial Information Mortgage Indebtedness EquityMethodInvestmentSummarizedFinancialInformationMortgageIndebtedness	7980200000	USD
CY2019Q4	jll	Equity Method Investment Summarized Financial Information Mortgage Indebtedness EquityMethodInvestmentSummarizedFinancialInformationMortgageIndebtedness	7345100000	USD
CY2020Q4	jll	Equity Method Investment Summarized Information Other Borrowings EquityMethodInvestmentSummarizedInformationOtherBorrowings	1332900000	USD
CY2019Q4	jll	Equity Method Investment Summarized Information Other Borrowings EquityMethodInvestmentSummarizedInformationOtherBorrowings	1118200000	USD
CY2020Q4	jll	Equity Method Investment Summarized Information Liabilities EquityMethodInvestmentSummarizedInformationLiabilities	10720500000	USD
CY2019Q4	jll	Equity Method Investment Summarized Information Liabilities EquityMethodInvestmentSummarizedInformationLiabilities	9853900000	USD
CY2020Q4	jll	Equity Method Investment Summarized Information Equity EquityMethodInvestmentSummarizedInformationEquity	17408800000	USD
CY2019Q4	jll	Equity Method Investment Summarized Information Equity EquityMethodInvestmentSummarizedInformationEquity	14930900000	USD
CY2020	jll	Equity Method Investment Summarized Information Revenue EquityMethodInvestmentSummarizedInformationRevenue	1702300000	USD
CY2019	jll	Equity Method Investment Summarized Information Revenue EquityMethodInvestmentSummarizedInformationRevenue	1247600000	USD
CY2018	jll	Equity Method Investment Summarized Information Revenue EquityMethodInvestmentSummarizedInformationRevenue	1199500000	USD
CY2020	jll	Equity Method Investment Summarized Information Net Income Loss EquityMethodInvestmentSummarizedInformationNetIncomeLoss	241500000	USD
CY2019	jll	Equity Method Investment Summarized Information Net Income Loss EquityMethodInvestmentSummarizedInformationNetIncomeLoss	831200000	USD
CY2018	jll	Equity Method Investment Summarized Information Net Income Loss EquityMethodInvestmentSummarizedInformationNetIncomeLoss	1046300000	USD
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	328600000	USD
CY2018Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	247300000	USD
CY2017Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	242300000	USD
CY2020	jll	Investmentsin Real Estate Venturesat Fair Value Additions InvestmentsinRealEstateVenturesatFairValueAdditions	51700000	USD
CY2019	jll	Investmentsin Real Estate Venturesat Fair Value Additions InvestmentsinRealEstateVenturesatFairValueAdditions	144900000	USD
CY2018	jll	Investmentsin Real Estate Venturesat Fair Value Additions InvestmentsinRealEstateVenturesatFairValueAdditions	55200000	USD
CY2020	jll	Investmentsin Real Estate Venturesat Fair Value Distributions InvestmentsinRealEstateVenturesatFairValueDistributions	-46800000	USD
CY2019	jll	Investmentsin Real Estate Venturesat Fair Value Distributions InvestmentsinRealEstateVenturesatFairValueDistributions	-101700000	USD
CY2018	jll	Investmentsin Real Estate Venturesat Fair Value Distributions InvestmentsinRealEstateVenturesatFairValueDistributions	-63800000	USD
CY2020	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-1000000.0	USD
CY2019	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	35300000	USD
CY2018	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	13900000	USD
CY2020	jll	Investmentsin Real Estate Venturesat Fair Value Foreign Currency Translation InvestmentsinRealEstateVenturesatFairValueForeignCurrencyTranslation	7800000	USD
CY2019	jll	Investmentsin Real Estate Venturesat Fair Value Foreign Currency Translation InvestmentsinRealEstateVenturesatFairValueForeignCurrencyTranslation	2800000	USD
CY2018	jll	Investmentsin Real Estate Venturesat Fair Value Foreign Currency Translation InvestmentsinRealEstateVenturesatFairValueForeignCurrencyTranslation	-300000	USD
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	340300000	USD
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	328600000	USD
CY2018Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	247300000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16400000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	38200000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	39800000	USD
CY2020	jll	Noncurrent Federal Tax Expense NoncurrentFederalTaxExpense	0	USD
CY2019	jll	Noncurrent Federal Tax Expense NoncurrentFederalTaxExpense	700000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	47500000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	76400000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	26900000	USD
CY2020	jll	Number Of Contributory Defined Benefit Pension Plans NumberOfContributoryDefinedBenefitPensionPlans	5	plan
CY2018	jll	Noncurrent Federal Tax Expense NoncurrentFederalTaxExpense	35700000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3800000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-12900000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-20100000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	20200000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	26000000.0	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	55400000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12500000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	15100000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12500000	USD
CY2020	jll	Noncurrent Stateand Local Tax Expense Benefit NoncurrentStateandLocalTaxExpenseBenefit	0	USD
CY2019	jll	Noncurrent Stateand Local Tax Expense Benefit NoncurrentStateandLocalTaxExpenseBenefit	0	USD
CY2018	jll	Noncurrent Stateand Local Tax Expense Benefit NoncurrentStateandLocalTaxExpenseBenefit	7500000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	200000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-7000000.0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5000000.0	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	8100000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	15000000.0	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	103700000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	156900000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	145300000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-29700000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-31300000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1400000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	74000000.0	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	125600000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	143900000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	106900000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159700000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	214300000	USD
CY2018	jll	Tax Expense Adjustmentsfor Income Tax Provision Transition Tax TaxExpenseAdjustmentsforIncomeTaxProvisionTransitionTax	47000000.0	USD
CY2019	jll	Tax Expense Adjustmentsfor Income Tax Provision Transition Tax TaxExpenseAdjustmentsforIncomeTaxProvisionTransitionTax	-4300000	USD
CY2020	jll	Increase Or Decrease In Current Tax Expense From Utilization Of Prior Years Net Operating Loss Carryovers IncreaseOrDecreaseInCurrentTaxExpenseFromUtilizationOfPriorYearsNetOperatingLossCarryovers	-2900000	USD
CY2019	jll	Increase Or Decrease In Current Tax Expense From Utilization Of Prior Years Net Operating Loss Carryovers IncreaseOrDecreaseInCurrentTaxExpenseFromUtilizationOfPriorYearsNetOperatingLossCarryovers	300000	USD
CY2018	jll	Increase Or Decrease In Current Tax Expense From Utilization Of Prior Years Net Operating Loss Carryovers IncreaseOrDecreaseInCurrentTaxExpenseFromUtilizationOfPriorYearsNetOperatingLossCarryovers	-22200000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	111200000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	146500000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	148300000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9400000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.018
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8900000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2800000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.004
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-3300000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization	-0.006
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-3700000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization	-0.005
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-3400000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization	-0.005
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	11200000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.021
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	18900000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.027
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	14600000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.021
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-20500000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.039
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-8700000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.013
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-21100000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.030
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	4300000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.008
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	7200000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.010
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	12400000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.018
CY2020	jll	Tax Expense Adjustmentsfor Income Tax Provision Transition Tax TaxExpenseAdjustmentsforIncomeTaxProvisionTransitionTax	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2019	jll	Tax Expense Adjustmentsfor Income Tax Provision Transition Tax TaxExpenseAdjustmentsforIncomeTaxProvisionTransitionTax	-4300000	USD
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CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-5400000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-5100000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.007
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	13700000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.019
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	106900000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.202
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159700000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.229
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	214300000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.304
CY2020Q4	jll	Number Of Countries In Which Company Has Operations That Constitute Income Tax Presence NumberOfCountriesInWhichCompanyHasOperationsThatConstituteIncomeTaxPresence	92	country
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	145900000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	101300000	USD
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	551700000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	604700000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	529600000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	697600000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	706000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	344300000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	17900000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	26500000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	21100000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	20200000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	163400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	141500000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	25000000.0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	20300000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	13100000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	15600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	584800000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	492400000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	176500000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	71400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	70400000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	513400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	422000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	14800000	USD
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CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	296800000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	244800000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	10100000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	12900000	USD
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CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1100000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	9500000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	336900000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	282600000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	139400000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	176500000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	20600000	USD
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CY2020Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	163600000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	4400000	USD
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CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	75300000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	78200000	USD
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CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	13700000	USD
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CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	156400000	USD
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Files In Submission

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$JLL
Jones Lang LaSalle Inc Stock $jll

2020 Q4 Form 10-K Financial Statement

#000103797621000009 Filed on February 18, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$JLL Jones Lang LaSalle Inc Stock $jll

2020 Q4 Form 10-K Financial Statement

#000103797621000009 Filed on February 18, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$JLL
Jones Lang LaSalle Inc Stock $jll