$LH
LABCORP HOLDINGS INC. Stock $lh

$lh Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000092014820000058 Filed on October 29, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q4
Revenue	$4.490B	$3.896B	$2.953B
YoY Change	52.02%	33.04%	5.95%
Cost Of Revenue	$2.585B	$2.337B	$2.133B
YoY Change	21.2%	10.68%	5.84%
Gross Profit	$1.905B	$1.559B	$820.7M
YoY Change	132.11%	90.8%	6.25%
Gross Profit Margin	42.43%	40.02%	27.79%
Selling, General & Admin	$498.2M	$419.5M	$380.5M
YoY Change	30.93%	4.48%	-4.13%
% of Gross Profit	26.15%	26.9%	46.36%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$183.9M	$152.3M	$155.8M
YoY Change	18.04%	5.54%	13.14%
% of Gross Profit	9.65%	9.77%	18.98%
Operating Expenses	$589.0M	$419.5M	$444.7M
YoY Change	32.45%	4.48%	-1.85%
Operating Profit	$1.316B	$1.047B	$336.4M
YoY Change	291.17%	208.06%	9.33%
Interest Expense	-$49.20M	$51.40M	-$49.70M
YoY Change	-1.01%	-15.04%	-4.05%
% of Operating Profit	-3.74%	4.91%	-14.77%
Other Income/Expense, Net	-$1.300M	-$100.0M	-$4.800M
YoY Change	-72.92%	90.48%	-88.41%
Pretax Income	$1.243B	$947.1M	$292.9M
YoY Change	324.27%	229.54%	36.55%
Income Tax	$304.1M	$243.4M	$65.60M
% Of Pretax Income	24.47%	25.7%	22.4%
Net Earnings	$938.3M	$703.4M	$227.1M
YoY Change	313.17%	-321.75%	43.83%
Net Earnings / Revenue	20.9%	18.05%	7.69%
Basic Earnings Per Share		$7.22	$2.34
Diluted Earnings Per Share	$9.545M	$7.17	$2.32
COMMON SHARES
Basic Shares Outstanding	97.40M shares	97.40M shares	97.10M shares
Diluted Shares Outstanding		98.10M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.321B	$667.0M	$338.0M
YoY Change	290.83%	84.76%	-20.84%
Cash & Equivalents	$1.321B	$667.2M	$337.5M
Short-Term Investments
Other Short-Term Assets	$365.0M	$327.0M	$374.0M
YoY Change	-2.41%	9.73%	21.04%
Inventory	$423.2M	$392.5M	$244.7M
Prepaid Expenses	$364.8M	$327.2M	$373.7M
Receivables	$2.480B	$2.095B	$1.544B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$5.125B	$4.086B	$2.981B
YoY Change	71.92%	36.74%	5.14%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.730B	$2.609B	$2.637B
YoY Change	3.53%	5.92%	51.5%
Goodwill	$7.752B	$7.614B	$7.865B
YoY Change	-1.44%	-2.58%	6.86%
Intangibles	$3.961B	$3.921B	$4.035B
YoY Change	-1.82%	-2.51%	3.16%
Long-Term Investments	$74.00M	$71.00M	$85.00M
YoY Change	-12.94%	-17.44%	39.34%
Other Assets	$410.0M	$437.0M	$435.4M
YoY Change	-5.83%	-4.77%	57.75%
Total Long-Term Assets	$14.95B	$14.65B	$15.07B
YoY Change	-0.79%	-1.39%	12.85%
TOTAL ASSETS
Total Short-Term Assets	$5.125B	$4.086B	$2.981B
Total Long-Term Assets	$14.95B	$14.65B	$15.07B
Total Assets	$20.07B	$18.74B	$18.05B
YoY Change	11.22%	5.0%	11.5%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$638.9M	$639.5M	$632.3M
YoY Change	1.04%	5.22%	-0.36%
Accrued Expenses	$1.358B	$1.298B	$942.4M
YoY Change	44.07%	56.3%	8.32%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Long-Term Debt Due	$383.0M	$384.0M	$424.0M
YoY Change	-9.67%	-24.71%	4140.0%
Total Short-Term Liabilities	$3.079B	$3.010B	$2.656B
YoY Change	15.92%	17.81%	41.35%
LONG-TERM LIABILITIES
Long-Term Debt	$5.419B	$5.417B	$5.790B
YoY Change	-6.4%	-11.21%	-3.36%
Other Long-Term Liabilities	$526.4M	$473.2M	$383.2M
YoY Change	37.37%	35.86%	14.73%
Total Long-Term Liabilities	$5.945B	$5.891B	$6.173B
YoY Change	-3.69%	-8.67%	-2.4%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.079B	$3.010B	$2.656B
Total Long-Term Liabilities	$5.945B	$5.891B	$6.173B
Total Liabilities	$10.61B	$10.48B	$10.46B
YoY Change	1.48%	-1.1%	13.75%
SHAREHOLDERS EQUITY
Retained Earnings	$9.479B	$8.464B	$7.904B
YoY Change	19.94%	10.26%	10.44%
Common Stock	$119.3M	$89.70M	$35.80M
YoY Change	233.24%	57.92%	-97.55%
Preferred Stock
YoY Change
Treasury Stock (at cost)			$0.00
YoY Change			-100.0%
Treasury Stock Shares	0.000 shares		0.000 shares
Shareholders Equity	$9.360B	$8.239B	$7.644B
YoY Change
Total Liabilities & Shareholders Equity	$20.07B	$18.74B	$18.05B
YoY Change	11.22%	5.0%	11.5%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q4
OPERATING ACTIVITIES
Net Income	$938.3M	$703.4M	$227.1M
YoY Change	313.17%	-321.75%	43.83%
Depreciation, Depletion And Amortization	$183.9M	$152.3M	$155.8M
YoY Change	18.04%	5.54%	13.14%
Cash From Operating Activities	$774.6M	$786.2M	$569.8M
YoY Change	35.94%	72.56%	17.15%
INVESTING ACTIVITIES
Capital Expenditures	-$99.40M	-$77.20M	-$128.2M
YoY Change	-22.46%	-16.63%	4.91%
Acquisitions
YoY Change
Other Investing Activities	-$28.60M	-$208.0M	-$23.90M
YoY Change	19.67%	41.4%	-3.24%
Cash From Investing Activities	-$128.0M	-$285.2M	-$152.1M
YoY Change	-15.84%	18.98%	3.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.000M	-396.7M	-449.4M
YoY Change	-99.78%	244.96%	-44.03%
NET CHANGE
Cash From Operating Activities	774.6M	786.2M	569.8M
Cash From Investing Activities	-128.0M	-285.2M	-152.1M
Cash From Financing Activities	-1.000M	-396.7M	-449.4M
Net Change In Cash	645.6M	104.3M	-31.70M
YoY Change	-2136.59%	3.37%	-93.16%
FREE CASH FLOW
Cash From Operating Activities	$774.6M	$786.2M	$569.8M
Capital Expenditures	-$99.40M	-$77.20M	-$128.2M
Free Cash Flow	$874.0M	$863.4M	$698.0M
YoY Change	25.21%	57.5%	14.69%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	26600000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	19000000.0	USD
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	97400000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	97200000	shares
CY2020Q3	dei	Entity Central Index Key EntityCentralIndexKey	0000920148
CY2020Q3	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q3	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020Q3	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
CY2020Q3	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
CY2020Q3	dei	Amendment Flag AmendmentFlag	false
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-11353
	dei	Entity Registrant Name EntityRegistrantName	LABORATORY CORPORATION OF AMERICA HOLDINGS
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-3757370
	dei	Entity Address Address Line1 EntityAddressAddressLine1	358 South Main Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Burlington,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NC
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	27215
	dei	City Area Code CityAreaCode	336
	dei	Local Phone Number LocalPhoneNumber	229-1127
	dei	Security12b Title Security12bTitle	Common Stock, $0.10 par value
	dei	Trading Symbol TradingSymbol	LH
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	97400000	shares
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	667200000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	337500000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2095200000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1543900000	USD
CY2020Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	603500000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	481400000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	392500000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	244700000	USD
CY2020Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	327200000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	373700000	USD
CY2020Q3	us-gaap	Assets Current AssetsCurrent	4085600000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	2981200000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2608600000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2636600000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	7613800000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	7865000000.0	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3920500000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4034500000	USD
CY2020Q3	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	70700000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	84900000	USD
CY2020Q3	us-gaap	Deferred Income Taxes And Other Assets Current DeferredIncomeTaxesAndOtherAssetsCurrent	3400000	USD
CY2019Q4	us-gaap	Deferred Income Taxes And Other Assets Current DeferredIncomeTaxesAndOtherAssetsCurrent	8800000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	437000000.0	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	435400000	USD
CY2020Q3	us-gaap	Assets Assets	18739600000	USD
CY2019Q4	us-gaap	Assets Assets	18046400000	USD
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	639500000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	632300000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1297800000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	942400000	USD
CY2020Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	494800000	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	451000000.0	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	193800000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	206500000	USD
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	7400000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	8400000	USD
CY2020Q3	us-gaap	Debt Current DebtCurrent	376600000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	415200000	USD
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	3009900000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2655800000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5417300000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5789800000	USD
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	86300000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	602400000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	596600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	91100000	USD
CY2020Q3	lh	Deferred Income Taxes And Other Tax Liabilities DeferredIncomeTaxesAndOtherTaxLiabilities	891500000	USD
CY2019Q4	lh	Deferred Income Taxes And Other Tax Liabilities DeferredIncomeTaxesAndOtherTaxLiabilities	942800000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	473200000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	383200000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	10480600000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	10459300000	USD
CY2020Q3	lh	Noncontrolling Interest Mezzanine Equity NoncontrollingInterestMezzanineEquity	19900000	USD
CY2019Q4	lh	Noncontrolling Interest Mezzanine Equity NoncontrollingInterestMezzanineEquity	20100000	USD
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	9000000.0	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	9000000.0	USD
CY2020Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	80700000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	26800000	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	8464000000.0	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	7903600000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-314600000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-372400000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	8239100000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	7567000000.0	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	18739600000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	18046400000	USD
CY2020Q3	us-gaap	Revenues Revenues	3896100000	USD
CY2019Q3	us-gaap	Revenues Revenues	2928500000	USD
	us-gaap	Revenues Revenues	9488700000	USD
	us-gaap	Revenues Revenues	8601400000	USD
CY2020Q3	us-gaap	Cost Of Revenue CostOfRevenue	2336700000	USD
CY2019Q3	us-gaap	Cost Of Revenue CostOfRevenue	2111200000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	6440800000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	6169600000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	1559400000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	817300000	USD
	us-gaap	Gross Profit GrossProfit	3047900000	USD
	us-gaap	Gross Profit GrossProfit	2431800000	USD
CY2020Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	419500000	USD
CY2019Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	401500000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1211300000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1210600000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	62200000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	61700000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	184600000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	179000000.0	USD
CY2020Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	23500000	USD
CY2019Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	460900000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020Q3	lh	Net Restructuring And Other Special Charges NetRestructuringAndOtherSpecialCharges	7100000	USD
CY2019Q3	lh	Net Restructuring And Other Special Charges NetRestructuringAndOtherSpecialCharges	14200000	USD
	lh	Net Restructuring Charges NetRestructuringCharges	38900000	USD
CY2019	lh	Net Restructuring Charges NetRestructuringCharges	48400000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1047100000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	339900000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1152200000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	993800000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	51400000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	60500000	USD
	us-gaap	Interest Expense InterestExpense	159100000	USD
	us-gaap	Interest Expense InterestExpense	176300000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3000000.0	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2400000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1800000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7900000	USD
CY2020Q3	us-gaap	Investment Income Net InvestmentIncomeNet	2600000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	900000	USD
CY2019Q3	us-gaap	Investment Income Net InvestmentIncomeNet	2900000	USD
	us-gaap	Investment Income Net InvestmentIncomeNet	7700000	USD
	us-gaap	Investment Income Net InvestmentIncomeNet	4800000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-54200000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2700000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-22600000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-18200000	USD
CY2020Q3	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	947100000	USD
CY2019Q3	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	287400000	USD
	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	976400000	USD
	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	812000000.0	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	243400000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66400000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	358000000.0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	214400000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	703700000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	221000000.0	USD
	us-gaap	Profit Loss ProfitLoss	618400000	USD
	us-gaap	Profit Loss ProfitLoss	597600000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	600000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	900000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	703400000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	220700000	USD
	us-gaap	Net Income Loss NetIncomeLoss	617800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	596700000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.22
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.26
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.35
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.08
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.17
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.25
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.31
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.04
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-36700000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	600000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	703700000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	221000000.0	USD
	us-gaap	Profit Loss ProfitLoss	618400000	USD
	us-gaap	Profit Loss ProfitLoss	597600000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	132900000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-92600000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	52400000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-45400000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-2100000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-3200000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-7500000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-8700000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	135000000.0	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-89400000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	59900000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2100000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	6971400000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	185600000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2400000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	134400000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-90300000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	57800000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-39100000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	838100000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	130700000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	676200000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	558500000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	600000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	900000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	837800000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	130400000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	675600000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	557600000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	23600000	USD
CY2019Q1	lh	Issuanceofcommonstockunderemployeeplans Issuanceofcommonstockunderemployeeplans	24700000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	19400000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	25500000	USD
CY2019Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	100100000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	7111300000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	190400000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	27600000	USD
CY2019Q2	lh	Issuanceofcommonstockunderemployeeplans Issuanceofcommonstockunderemployeeplans	9200000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	20700000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26500000	USD
CY2019Q2	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2019Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	199900000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	7144400000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	220700000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	220700000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-90300000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-90300000	USD
CY2019Q3	lh	Issuanceofcommonstockunderemployeeplans Issuanceofcommonstockunderemployeeplans	25100000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	300000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	31500000	USD
CY2019Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	100000000.0	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	7231100000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	7567000000.0	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-317200000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-145500000	USD
CY2020Q1	lh	Issuanceofcommonstockunderemployeeplans Issuanceofcommonstockunderemployeeplans	26900000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	22000000.0	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	17900000	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	100000000.0	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	7020100000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	231600000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	68900000	USD
CY2020Q2	lh	Issuanceofcommonstockunderemployeeplans Issuanceofcommonstockunderemployeeplans	1800000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	9500000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	39800000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	7352700000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	703400000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	134400000	USD
CY2020Q3	lh	Issuanceofcommonstockunderemployeeplans Issuanceofcommonstockunderemployeeplans	21900000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	500000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	27200000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	8239100000	USD
	us-gaap	Profit Loss ProfitLoss	618400000	USD
	us-gaap	Profit Loss ProfitLoss	597600000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	440800000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	421400000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	84900000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	83500000	USD
	lh	Depreciation And Amortization Of Leased Assets DepreciationAndAmortizationOfLeasedAssets	150700000	USD
	lh	Depreciation And Amortization Of Leased Assets DepreciationAndAmortizationOfLeasedAssets	144100000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	460900000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-48500000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	23300000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	55200000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	12500000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	546900000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	144300000	USD
	lh	Increase Decreasein Unbilled Contract Receivable IncreaseDecreaseinUnbilledContractReceivable	117800000	USD
	lh	Increase Decreasein Unbilled Contract Receivable IncreaseDecreaseinUnbilledContractReceivable	59500000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	147500000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	14500000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-26100000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-5800000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	17300000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-28200000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	44100000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1000000.0	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	323000000.0	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-165800000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1360700000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	874900000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	282300000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	272000000.0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1100000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5800000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	1000000.0	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	9400000	USD
	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	3100000	USD
	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	29300000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	21300000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	208800000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	852900000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-515200000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1131000000.0	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	850000000.0	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	0	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	250000000.0	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	151700000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	473000000.0	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	151700000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	473000000.0	USD
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	412200000	USD
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	32000000.0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	40400000	USD
	lh	Net Proceeds From Issuance Of Stock To Employees NetProceedsFromIssuanceOfStockToEmployees	50600000	USD
	lh	Net Proceeds From Issuance Of Stock To Employees NetProceedsFromIssuanceOfStockToEmployees	59000000.0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100000000.0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	400000000.0	USD
	lh	Other Financing Cash Flows OtherFinancingCashFlows	22800000	USD
	lh	Other Financing Cash Flows OtherFinancingCashFlows	21900000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-516400000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	196700000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	600000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-6300000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	329700000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-65700000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	337500000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	426800000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	667200000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	361100000	USD
	lh	Cost Method Investments Maximum Ownership Percentage CostMethodInvestmentsMaximumOwnershipPercentage	0.200
	lh	Covid19 Pandemic Goodwill And Intangible Asset Impairment COVID19PandemicGoodwillAndIntangibleAssetImpairment	437400000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	25400000	USD
CY2020Q2	lh	Cash Payment Received Appropriatedby U.S.Congress Covid19 CashPaymentReceivedAppropriatedbyU.S.CongressCovid19	55900000	USD
CY2020Q3	lh	Cash Payment Received Appropriatedby U.S.Congress Covid19 CashPaymentReceivedAppropriatedbyU.S.CongressCovid19	76200000	USD
CY2020Q2	lh	Cash Payment Received Appropriatedby U.S.Congress Covid19 CashPaymentReceivedAppropriatedbyU.S.CongressCovid19	55900000	USD
CY2020Q3	lh	Cash Payment Received Appropriatedby U.S.Congress Covid19 CashPaymentReceivedAppropriatedbyU.S.CongressCovid19	76200000	USD
CY2020Q3	lh	Cares Act Funds Accrued Liabilities And Other Liabilities CARESActFundsAccruedLiabilitiesAndOtherLiabilities	132100000	USD
CY2020Q3	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	12900000	USD
CY2019Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	14900000	USD
CY2020Q3	us-gaap	Amount Of Deferred Costs Related To Long Term Contracts AmountOfDeferredCostsRelatedToLongTermContracts	45700000	USD
	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	16800000	USD
CY2019Q4	us-gaap	Amount Of Deferred Costs Related To Long Term Contracts AmountOfDeferredCostsRelatedToLongTermContracts	43500000	USD
CY2020Q3	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	6000000.0	USD
CY2019Q3	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	5800000	USD
CY2020Q3	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:3pt;margin-top:3pt;text-align:justify;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The extent to which the COVID-19 pandemic has and will impact the Company’s business and financial results depend on numerous evolving factors including, but not limited to: the magnitude and duration of the COVID-19 pandemic, the impact to worldwide macroeconomic conditions including interest rates, employment rates and health insurance coverage, the speed of the anticipated recovery, and governmental and business reactions to the pandemic. The Company assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to the Company and the unknown future impacts of COVID-19 as of September 30, 2020, and through the date of this </span></div>report. The accounting matters assessed included, but were not limited to, the Company’s implicit price concessions and credit losses, equity investments, notes receivable and the carrying value of goodwill and other long-lived assets. The Company’s future assessment of the magnitude and duration of COVID-19, as well as other factors, could result in additional material impacts to the Company’s consolidated financial statements in future reporting periods.
CY2020Q3	lh	Percentof Revenue Contributed PercentofRevenueContributed	1
CY2019Q3	lh	Percentof Revenue Contributed PercentofRevenueContributed	1
	lh	Percentof Revenue Contributed PercentofRevenueContributed	1
	lh	Percentof Revenue Contributed PercentofRevenueContributed	1
CY2020Q3	lh	Sales Commission Amortization Period Minimum SalesCommissionAmortizationPeriodMinimum	P1Y
CY2020Q3	lh	Sales Commission Amortization Period Maximum SalesCommissionAmortizationPeriodMaximum	P5Y
CY2020Q3	us-gaap	Accrued Sales Commission Current And Noncurrent AccruedSalesCommissionCurrentAndNoncurrent	32800000	USD
CY2019Q4	us-gaap	Accrued Sales Commission Current And Noncurrent AccruedSalesCommissionCurrentAndNoncurrent	28600000	USD
	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	15300000	USD
CY2020Q3	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	2300000	USD
CY2019Q3	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	2300000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	7600000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	6100000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	609800000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	483700000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	492900000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	449200000	USD
	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	237200000	USD
	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	232800000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	19000000.0	USD
CY2019Q4	lh	Unbilled Services Allowancefor Credit Loss UnbilledServicesAllowanceforCreditLoss	2300000	USD
CY2019Q4	lh	Note Receivable Allowancefor Credit Loss NoteReceivableAllowanceforCreditLoss	0	USD
CY2019Q4	lh	Allowancefor Credit Loss AllowanceforCreditLoss	21300000	USD
	lh	Current Expected Credit Losses Opening Balance Sheet Impacton Retained Earnings CurrentExpectedCreditLossesOpeningBalanceSheetImpactonRetainedEarnings	7000000.0	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	10000000.0	USD
	lh	Unbilled Services Credit Loss Expense Reversal UnbilledServicesCreditLossExpenseReversal	3900000	USD
	lh	Note Receivable Credit Loss Expense Reversal NoteReceivableCreditLossExpenseReversal	700000	USD
	lh	Credit Loss Expense Reversal CreditLossExpenseReversal	14600000	USD
	lh	Allowancefor Credit Loss Write Off AllowanceforCreditLossWriteOff	4300000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	26600000	USD
CY2020Q3	lh	Unbilled Services Allowancefor Credit Loss UnbilledServicesAllowanceforCreditLoss	6300000	USD
CY2020Q3	lh	Note Receivable Allowancefor Credit Loss NoteReceivableAllowanceforCreditLoss	5700000	USD
CY2020Q3	lh	Allowancefor Credit Loss AllowanceforCreditLoss	38600000	USD
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4795000000.0	USD
CY2020Q3	lh	Percentofremainingperformanceobligationsrecognizedasrevenueinnextyear Percentofremainingperformanceobligationsrecognizedasrevenueinnextyear	0.32
CY2020Q3	lh	Long Term Contracts Duration Minimum LongTermContractsDurationMinimum	P1Y
CY2020Q3	lh	Long Term Contracts Duration Maximum LongTermContractsDurationMaximum	P8Y
	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	44800000	USD
	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	67700000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	6000000.0	USD
CY2019Q2	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	110000000.0	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-12200000	USD
CY2019Q2	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	110000000.0	USD
CY2019Q2	lh	Totalacquisitionconsiderationcashstocknotesetc. Totalacquisitionconsiderationcashstocknotesetc.	711000000.0	USD
CY2020Q2	lh	Totalacquisitionconsiderationcashstocknotesetc. Totalacquisitionconsiderationcashstocknotesetc.	711000000.0	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3899700000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	2969000000.0	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	9524200000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	8827700000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	744900000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	224300000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	666300000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	612900000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	703400000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97400000	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.22
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	220700000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.26
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97600000	shares
	us-gaap	Net Income Loss NetIncomeLoss	617800000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97300000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.35
	us-gaap	Net Income Loss NetIncomeLoss	596700000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	98100000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.08
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CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.25
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CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	200000	shares
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CY2019	lh	Net Restructuring Charges NetRestructuringCharges	48400000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	26200000	USD
CY2019	us-gaap	Business Exit Costs1 BusinessExitCosts1	22000000.0	USD
CY2019	lh	Employee Severance Benefits Related Restructuring Reserve Accrual Adjustment EmployeeSeveranceBenefitsRelatedRestructuringReserveAccrualAdjustment	400000	USD
CY2019	lh	Unusedfacilityrestructuringreserves Unusedfacilityrestructuringreserves	200000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	13400000	USD
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CY2020Q3	us-gaap	Restructuring Reserve RestructuringReserve	10400000	USD
CY2020Q3	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	8100000	USD
CY2020Q3	us-gaap	Restructuring Reserve Noncurrent RestructuringReserveNoncurrent	2300000	USD
CY2020Q3	us-gaap	Restructuring Reserve RestructuringReserve	10400000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	7865000000.0	USD
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	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	32100000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	7613800000	USD
CY2020Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	5953100000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2032600000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3920500000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	5885600000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1851100000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4034500000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	62200000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	61700000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	184600000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	179000000.0	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	60000000.0	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	238500000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	232600000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	229500000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	224600000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2380200000	USD
CY2020Q3	lh	A4.625 Seniornotesdue2020 A4.625Seniornotesdue2020	0	USD
CY2019Q4	lh	A4.625 Seniornotesdue2020 A4.625Seniornotesdue2020	413700000	USD
CY2020Q3	lh	A2019 Term Loan A2019TermLoan	375000000.0	USD
CY2019Q4	lh	A2019 Term Loan A2019TermLoan	0	USD
CY2020Q3	lh	Shorttermdebtissuancecosts Shorttermdebtissuancecosts	600000	USD
CY2019Q4	lh	Shorttermdebtissuancecosts Shorttermdebtissuancecosts	700000	USD
CY2020Q3	us-gaap	Notes Payable Current NotesPayableCurrent	2200000	USD
CY2019Q4	us-gaap	Notes Payable Current NotesPayableCurrent	2200000	USD
CY2020Q3	us-gaap	Debt Current DebtCurrent	376600000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	415200000	USD
CY2020Q3	lh	A2.30seniornotesdue2024 A2.30seniornotesdue2024	400000000.0	USD
CY2019Q4	lh	A2.30seniornotesdue2024 A2.30seniornotesdue2024	400000000.0	USD
CY2020Q3	lh	A2.95seniornotesdue2029 A2.95seniornotesdue2029	650000000.0	USD
CY2019Q4	lh	A2.95seniornotesdue2029 A2.95seniornotesdue2029	650000000.0	USD
CY2019Q4	us-gaap	Line Of Credit Facility Fair Value Of Amount Outstanding LineOfCreditFacilityFairValueOfAmountOutstanding	375000000.0	USD
CY2020Q3	lh	Longtermdebtissuancecosts Longtermdebtissuancecosts	38800000	USD
CY2020Q3	us-gaap	Notes Payable NotesPayable	6100000	USD
CY2019Q4	lh	Longtermdebtissuancecosts Longtermdebtissuancecosts	42200000	USD
CY2019Q4	us-gaap	Notes Payable NotesPayable	7000000.0	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5417300000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5789800000	USD
CY2020Q3	lh	Balance Of Senior Notes Mature During Q42020 BalanceOfSeniorNotesMatureDuringQ42020	412200000	USD
CY2020Q3	lh	Gain Interest Rate Swap Arrangement GainInterestRateSwapArrangement	1600000	USD
CY2019Q2	lh	A2019 Term Loan A2019TermLoan	850000000.0	USD
CY2020Q3	lh	A2019 Term Loan A2019TermLoan	375000000.0	USD
CY2019Q4	us-gaap	Line Of Credit Facility Fair Value Of Amount Outstanding LineOfCreditFacilityFairValueOfAmountOutstanding	375000000.0	USD
CY2020Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1000000000.0	USD
CY2020Q3	lh	Credit Facility Optionto Increase CreditFacilityOptiontoIncrease	350000000.0	USD
CY2020Q3	lh	Credit Facility Maximum Swing Line Borrowings CreditFacilityMaximumSwingLineBorrowings	100000000.0	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	667200000	USD
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	265000000.0	shares
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	30000000.0	shares
CY2020Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.10
CY2020Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	lh	Common Stock Repurchase Authorization Outstanding CommonStockRepurchaseAuthorizationOutstanding	900000000.0	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	600000	shares
CY2020Q3	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	800000000.0	shares
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-285400000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-87000000.0	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-372400000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax	52400000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	7500000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	59900000	USD
	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	2100000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2100000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-233000000.0	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-81600000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-314600000	USD
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.50
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41300000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	31700000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41300000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	31700000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	9000000.0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	5500000	USD
CY2020Q3	lh	Non Elective Contribution NonElectiveContribution	0.03
CY2020Q3	lh	Discretionary Contribution Percentage Minimum DiscretionaryContributionPercentageMinimum	0.01
CY2020Q3	lh	Discretionary Contribution Percentage Maximum DiscretionaryContributionPercentageMaximum	0.03
CY2020Q3	lh	Defined Contribution Plan Total Expense DefinedContributionPlanTotalExpense	14000000.0	USD
CY2019Q3	lh	Defined Contribution Plan Total Expense DefinedContributionPlanTotalExpense	16700000	USD
	lh	Defined Contribution Plan Total Expense DefinedContributionPlanTotalExpense	41400000	USD
	lh	Defined Contribution Plan Total Expense DefinedContributionPlanTotalExpense	48900000	USD
CY2020Q3	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.045
CY2020Q3	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-92600000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-93400000	USD
CY2020Q3	lh	Fair Value Liabilities Measured On Recurring Basis Noncontrolling Interest Puts FairValueLiabilitiesMeasuredOnRecurringBasisNoncontrollingInterestPuts	15400000	USD
CY2020Q3	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	8800000	USD
CY2020Q3	us-gaap	Cash Surrender Value Fair Value Disclosure CashSurrenderValueFairValueDisclosure	82900000	USD
CY2020Q3	lh	Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability FairValueLiabilitiesMeasuredOnRecurringBasisDeferredCompensationLiability	81000000.0	USD
CY2020Q3	us-gaap	Contingent Consideration Classified As Equity Fair Value Disclosure ContingentConsiderationClassifiedAsEquityFairValueDisclosure	9000000.0	USD
CY2019Q4	lh	Fair Value Liabilities Measured On Recurring Basis Noncontrolling Interest Puts FairValueLiabilitiesMeasuredOnRecurringBasisNoncontrollingInterestPuts	15800000	USD
CY2019Q4	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	3200000	USD
CY2019Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	1500000	USD
CY2019Q4	us-gaap	Cash Surrender Value Fair Value Disclosure CashSurrenderValueFairValueDisclosure	80200000	USD
CY2019Q4	lh	Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability FairValueLiabilitiesMeasuredOnRecurringBasisDeferredCompensationLiability	76700000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	9100000	USD
CY2019Q4	us-gaap	Contingent Consideration Classified As Equity Fair Value Disclosure ContingentConsiderationClassifiedAsEquityFairValueDisclosure	9900000	USD
	lh	Lh Business Combination Contingent Consideration Arrangements Payments Lh_BusinessCombinationContingentConsiderationArrangementsPayments	4800000	USD
	lh	Contingentconsiderationadjustment Contingentconsiderationadjustment	2100000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	6000000.0	USD
CY2020Q3	lh	Numberof Measurement Funds Available For Participant Election NumberofMeasurementFundsAvailableForParticipantElection	16
CY2020Q3	lh	Senior Notes Fair Value SeniorNotesFairValue	6107900000	USD
CY2019Q4	lh	Senior Notes Fair Value SeniorNotesFairValue	6140600000	USD
CY2020Q3	lh	Balance Of Senior Notes Mature During Q42020 BalanceOfSeniorNotesMatureDuringQ42020	412200000	USD
CY2020Q3	us-gaap	Fair Value Hedge Liabilities At Fair Value FairValueHedgeLiabilitiesAtFairValue	0	USD
CY2019Q4	us-gaap	Fair Value Hedge Liabilities At Fair Value FairValueHedgeLiabilitiesAtFairValue	1500000	USD
CY2020Q3	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	-23100000	USD
	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	-12000000.0	USD
CY2020Q3	lh	Gain Interest Rate Swap Arrangement GainInterestRateSwapArrangement	1600000	USD
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	lh	Conversion Of Zero Coupon Convertible Debt ConversionOfZeroCouponConvertibleDebt	1700000	USD
	lh	Decreasein Capital Expenditures Incurredbutnotyet Paid DecreaseinCapitalExpendituresIncurredbutnotyetPaid	24500000	USD
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CY2020Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	0	USD
CY2019Q3	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	110000000.0	USD
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CY2019Q3	lh	Intercompanyrevenueelimination Intercompanyrevenueelimination	6200000	USD
	lh	Intercompanyrevenueelimination Intercompanyrevenueelimination	90000000.0	USD
	lh	Intercompanyrevenueelimination Intercompanyrevenueelimination	17100000	USD
CY2020Q3	us-gaap	Revenues Revenues	3896100000	USD
CY2019Q3	us-gaap	Revenues Revenues	2928500000	USD
	us-gaap	Revenues Revenues	9488700000	USD
	us-gaap	Revenues Revenues	8601400000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1047100000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	339900000	USD
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CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-100000000.0	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-52500000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-175700000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-181800000	USD
CY2020Q3	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	947100000	USD
CY2019Q3	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	287400000	USD
	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	976400000	USD
	lh	Income Lossfrom Continuing Operations Before Income Taxesand Noncontrolling Interest IncomeLossfromContinuingOperationsBeforeIncomeTaxesandNoncontrollingInterest	812000000.0	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	243400000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66400000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	358000000.0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	214400000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	703700000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	221000000.0	USD
	us-gaap	Profit Loss ProfitLoss	618400000	USD
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CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	600000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	900000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	703400000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	220700000	USD
	us-gaap	Net Income Loss NetIncomeLoss	617800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	596700000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	52400000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-45400000	USD
CY2020Q3	lh	A2019 Term Loan A2019TermLoan	375000000.0	USD

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LABCORP HOLDINGS INC. Stock $lh

2020 Q4 Form 10-Q Financial Statement

#000092014820000058 Filed on October 29, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LH LABCORP HOLDINGS INC. Stock $lh

2020 Q4 Form 10-Q Financial Statement

#000092014820000058 Filed on October 29, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LH
LABCORP HOLDINGS INC. Stock $lh