10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______ to  ______

Commission file number   1-11353

LABORATORY CORPORATION OF AMERICA HOLDINGS

(Exact name of registrant as specified in its charter)

Delaware	13-3757370
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

358 South Main Street
Burlington,	North Carolina	27215
(Address of principal executive offices)		(Zip Code)

(Registrant's telephone number, including area code) 336-229-1127

Securities registered pursuant to Section 12(b) of the Exchange Act.

Title of Each Class            Trading Symbol            Name of exchange on which registered

Common Stock, $0.10 par value        LH                New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (paragraph 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company”, and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒.

The number of shares outstanding of the issuer's common stock is 97.4 million shares as of October 28, 2020.

INDEX

PART I. FINANCIAL INFORMATION

Item 1.	Financial Statements (unaudited)
	Condensed Consolidated Balance Sheets	2
	September 30, 2020 and December 31, 2019
	Condensed Consolidated Statements of Operations	3
	Three and nine months ended September 30, 2020 and 2019
	Condensed Consolidated Statements of Comprehensive Earnings	4
	Three and nine months ended September 30, 2020 and 2019
	Condensed Consolidated Statements of Changes in Shareholders’ Equity	5
	Three and nine months ended September 30, 2020 and 2019
	Condensed Consolidated Statements of Cash Flows	6
	Nine months ended September 30, 2020 and 2019
	Notes to Unaudited Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	27
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	38
Item 4.	Controls and Procedures	39

PART II. OTHER INFORMATION

Item 1.	Legal Proceedings	40
Item 1A.	Risk Factors	40
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	42
Item 5.	Other Information	42
Item 6.	Exhibits	42

1

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements (unaudited)

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in millions)

(unaudited)

	September 30, 2020		December 31, 2019
ASSETS
Current assets:
Cash and cash equivalents	$	667.2	$	337.5
Accounts receivable, net of allowance for doubtful accounts of $26.6 and $19.0 as of September 30, 2020, and December 31, 2019, respectively	2,095.2		1,543.9
Unbilled services	603.5		481.4
Supplies inventory	392.5		244.7
Prepaid expenses and other	327.2		373.7
Total current assets	4,085.6		2,981.2
Property, plant and equipment, net	2,608.6		2,636.6
Goodwill, net	7,613.8		7,865.0
Intangible assets, net	3,920.5		4,034.5
Joint venture partnerships and equity method investments	70.7		84.9
Deferred income taxes	3.4		8.8
Other assets, net	437.0		435.4
Total assets	$	18,739.6	$	18,046.4
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	639.5	$	632.3
Accrued expenses and other	1,297.8		942.4
Unearned revenue	494.8		451.0
Short-term operating lease liabilities	193.8		206.5
Short-term finance lease liabilities	7.4		8.4
Short-term borrowings and current portion of long-term debt	376.6		415.2
Total current liabilities	3,009.9		2,655.8
Long-term debt, less current portion	5,417.3		5,789.8
Operating lease liabilities	602.4		596.6
Financing lease liabilities	86.3		91.1
Deferred income taxes and other tax liabilities	891.5		942.8
Other liabilities	473.2		383.2
Total liabilities	10,480.6		10,459.3
Commitments and contingent liabilities
Noncontrolling interest	19.9		20.1
Shareholders’ equity:
Common stock, 97.4 and 97.2 shares outstanding at September 30, 2020, and December 31, 2019, respectively	9.0		9.0
Additional paid-in capital	80.7		26.8
Retained earnings	8,464.0		7,903.6
Accumulated other comprehensive loss	(314.6)		(372.4)
Total shareholders’ equity	8,239.1		7,567.0
Total liabilities and shareholders’ equity	$	18,739.6	$	18,046.4

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

2

co LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in millions, except per share data)

(unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Revenues	$	3,896.1	$	2,928.5	$	9,488.7	$	8,601.4
Cost of revenues	2,336.7		2,111.2		6,440.8		6,169.6
Gross profit	1,559.4		817.3		3,047.9		2,431.8
Selling, general and administrative expenses	419.5		401.5		1,211.3		1,210.6
Amortization of intangibles and other assets	62.2		61.7		184.6		179.0
Goodwill and other asset impairments	23.5		—		460.9		—
Restructuring and other charges	7.1		14.2		38.9		48.4
Operating income	1,047.1		339.9		1,152.2		993.8
Other income (expense):
Interest expense	(51.4)		(60.5)		(159.1)		(176.3)
Equity method income (loss), net	3.0		2.4		(1.8)		7.9
Investment income	2.6		2.9		7.7		4.8
Other, net	(54.2)		2.7		(22.6)		(18.2)
Earnings before income taxes	947.1		287.4		976.4		812.0
Provision for income taxes	243.4		66.4		358.0		214.4
Net earnings	703.7		221.0		618.4		597.6
Less: Net earnings attributable to the noncontrolling interest	(0.3)		(0.3)		(0.6)		(0.9)
Net earnings attributable to Laboratory Corporation of America Holdings	$	703.4	$	220.7	$	617.8	$	596.7
Basic earnings per common share	$	7.22	$	2.26	$	6.35	$	6.08
Diluted earnings per common share	$	7.17	$	2.25	$	6.31	$	6.04

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

3

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS

(in millions, except per share data)

(unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Net earnings	$	703.7	$	221.0	$	618.4	$	597.6
Foreign currency translation adjustments	132.9		(92.6)		52.4		(45.4)
Net benefit plan adjustments	2.1		3.2		7.5		8.7
Other comprehensive earnings (loss) before tax	135.0		(89.4)		59.9		(36.7)
Benefit for income tax related to items of comprehensive earnings	(0.6)		(0.9)		(2.1)		(2.4)
Other comprehensive earnings (loss), net of tax	134.4		(90.3)		57.8		(39.1)
Comprehensive earnings	838.1		130.7		676.2		558.5
Less: Net earnings attributable to the noncontrolling interest	(0.3)		(0.3)		(0.6)		(0.9)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$	837.8	$	130.4	$	675.6	$	557.6

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN

SHAREHOLDERS’ EQUITY

(in millions)

(unaudited)

	Common Stock		Additional Paid-in Capital		Retained Earnings		Treasury Stock		Accumulated Other Comprehensive Earnings (Loss)		Total Shareholders’ Equity
BALANCE AT DECEMBER 31, 2018	$	11.7	$	1,451.1	$	7,079.8	$	(1,108.1)	$	(463.1)	$	6,971.4
Net earnings attributable to Laboratory Corporation of America Holdings	—		—		185.6		—		—		185.6
Other comprehensive earnings, net of tax	—		—		—		—		23.6		23.6
Issuance of common stock under employee stock plans	—		24.7		—		—		—		24.7
Net share settlement tax payments from issuance of stock to employees	—		—		—		(19.4)		—		(19.4)
Stock compensation	—		25.5		—		—		—		25.5
Purchase of common stock	(0.1)		(100.0)		—		—		—		(100.1)
BALANCE AT MARCH 31, 2019	$	11.6	$	1,401.3	$	7,265.4	$	(1,127.5)	$	(439.5)	$	7,111.3
Net earnings attributable to Laboratory Corporation of America Holdings	—		—		190.4		—		—		190.4
Other comprehensive earnings, net of tax	—		—		—		—		27.6		27.6
Issuance of common stock under employee stock plans	—		9.2		—		—		—		9.2
Net share settlement tax payments from issuance of stock to employees	—		—		—		(20.7)		—		(20.7)
Stock compensation	—		26.5		—		—		—		26.5
Retirement of treasury stock	(2.4)		(1,145.8)		—		1,148.2		—		—
Purchase of common stock	(0.1)		(199.8)		—		—		—		(199.9)
BALANCE AT JUNE 30, 2019	$	9.1	$	91.4	$	7,455.8	$	—	$	(411.9)	$	7,144.4
Net earnings attributable to Laboratory Corporation of America Holdings	—		—		220.7		—		—		220.7
Other comprehensive loss, net of tax	—		—		—		—		(90.3)		(90.3)
Issuance of common stock under employee stock plans	—		25.1		—		—		—		25.1
Net share settlement tax payments from issuance of stock to employees	—		(0.3)		—		—		—		(0.3)
Stock compensation	—		31.5		—		—		—		31.5
Purchase of common stock	(0.1)		(99.9)		—		—		—		(100.0)
BALANCE AT SEPTEMBER 30, 2019	$	9.0	$	47.8	$	7,676.5	$	—	$	(502.2)	$	7,231.1
BALANCE AT DECEMBER 31, 2019	$	9.0	$	26.8	$	7,903.6	$	—	$	(372.4)	$	7,567.0
Adoption of credit loss accounting standard	—		—		(7.0)		—		—		(7.0)
Net earnings (loss) attributable to Laboratory Corporation of America Holdings	—		—		(317.2)		—		—		(317.2)
Other comprehensive earnings (loss), net of tax	—		—		—		—		(145.5)		(145.5)
Issuance of common stock under employee stock plans	—		26.9		—		—		—		26.9
Net share settlement tax payments from issuance of stock to employees	—		(22.0)		—		—		—		(22.0)
Stock compensation	—		17.9		—		—		—		17.9
Purchase of common stock	—		(49.6)		(50.4)		—		—		(100.0)
BALANCE AT MARCH 31, 2020	$	9.0	$	—	$	7,529.0	$	—	$	(517.9)	$	7,020.1
Net earnings attributable to Laboratory Corporation of America Holdings	—		—		231.6		—		—		231.6
Other comprehensive earnings, net of tax	—		—		—		—		68.9		68.9
Issuance of common stock under employee stock plans	—		1.8		—		—		—		1.8
Net share settlement tax payments from issuance of stock to employees	—		(9.5)		—		—		—		(9.5)
Stock compensation	—		39.8		—		—		—		39.8
BALANCE AT JUNE 30, 2020	$	9.0	$	32.1	$	7,760.6	$	—	$	(449.0)	$	7,352.7
Net earnings attributable to Laboratory Corporation of America Holdings	$	—	$	—	$	703.4	$	—	$	—	$	703.4
Other comprehensive earnings, net of tax	—		—		—		—		134.4		134.4
Issuance of common stock under employee stock plans	—		21.9		—		—		—		21.9
Net share settlement tax payments from issuance of stock to employees	—		(0.5)		—		—		—		(0.5)
Stock compensation	—		27.2		—		—		—		27.2
BALANCE AT SEPTEMBER 30, 2020	$	9.0	$	80.7	$	8,464.0	$	—	$	(314.6)	$	8,239.1

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in millions)

(unaudited)

	Nine Months Ended September 30,
	2020		2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$	618.4	$	597.6
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	440.8		421.4
Stock compensation	84.9		83.5
Operating lease right-of-use asset expense	150.7		144.1
Goodwill and other asset impairments	460.9		—
Deferred income taxes	(48.5)		23.3
Other	55.2		12.5
Change in assets and liabilities (net of effects of acquisitions and divestitures):
Increase in accounts receivable	(546.9)		(144.3)
Increase in unbilled services	(117.8)		(59.5)
Increase in supplies inventory	(147.5)		(14.5)
Decrease in prepaid expenses and other	26.1		5.8
(Decrease) increase in accounts payable	17.3		(28.2)
(Decrease) increase in unearned revenue	44.1		(1.0)
(Decrease) increase in accrued expenses and other	323.0		(165.8)
Net cash provided by operating activities	1,360.7		874.9
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(282.3)		(272.0)
Proceeds from sale of assets	1.1		5.8
Proceeds from sale or distribution of investments	1.0		9.4
Proceeds from exit from swaps	3.1		—
Investments in equity affiliates	(29.3)		(21.3)
Acquisition of businesses, net of cash acquired	(208.8)		(852.9)
Net cash used for investing activities	(515.2)		(1,131.0)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from term loan	—		850.0
Payments on term loan	—		(250.0)
Proceeds from revolving credit facilities	151.7		473.0
Payments on revolving credit facilities	(151.7)		(473.0)
Payments on senior notes	(412.2)		—
Net share settlement tax payments from issuance of stock to employees	(32.0)		(40.4)
Net proceeds from issuance of stock to employees	50.6		59.0
Purchase of common stock	(100.0)		(400.0)
Other	(22.8)		(21.9)
Net cash provided by (used for) financing activities	(516.4)		196.7
Effect of exchange rate changes on cash and cash equivalents	0.6		(6.3)
Net increase (decrease) in cash and cash equivalents	329.7		(65.7)
Cash and cash equivalents at beginning of period	337.5		426.8
Cash and cash equivalents at end of period	$	667.2	$	361.1

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

6

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

1.      BASIS OF FINANCIAL STATEMENT PRESENTATION

Laboratory Corporation of America® Holdings together with its subsidiaries (the Company) is a leading global life sciences company that is deeply integrated in guiding patient care, providing comprehensive clinical laboratory and end-to-end drug development services. The Company’s mission is to improve health and improve lives by delivering world-class diagnostic solutions, bringing innovative medicines to patients faster and using technology to provide better care. The Company serves a broad range of customers, including managed care organizations (MCOs), biopharmaceutical and medical device companies, governmental agencies, physicians and other health care providers (e.g., physician assistants and nurse practitioners, generally referred to herein as physicians), hospitals and health systems, employers, patients and consumers, contract research organizations (CROs), and independent clinical laboratories.

The Company reports its business in two segments, LabCorp Diagnostics (LCD) and Covance Drug Development (CDD). For further financial information about these segments, see Note 15 Business Segment Information to the Condensed Consolidated Financial Statements. During the three months ended September 30, 2020, LCD and CDD contributed approximately 68% and 32% respectively, of revenues to the Company. During the nine months ended September 30, 2020, LCD and CDD contributed approximately 63% and 37%, respectively, of revenues to the Company.

The condensed consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries for which it exercises control. Long-term investments in affiliated companies in which the Company exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which the Company does not exercise significant influence (generally, when the Company has an investment of less than 20.0% and no representation on the investee's board of directors) are accounted for at fair value or at cost minus impairment adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer for those investments that do not have readily determinable fair values. All significant inter-company transactions and accounts have been eliminated. The Company does not have any significant variable interest entities or special purpose entities whose financial results are not included in the condensed consolidated financial statements.

The financial statements of the Company's operating foreign subsidiaries are measured using the local currency as the functional currency. Assets and liabilities are translated at exchange rates as of the balance sheet date. Revenues and expenses are translated at average monthly exchange rates prevailing during the period. Resulting translation adjustments are included in “Accumulated other comprehensive income.”

The accompanying condensed consolidated financial statements of the Company are unaudited. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows, and financial position have been made. Except as otherwise disclosed, all such adjustments are of a normal recurring nature. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.

The condensed consolidated financial statements and notes are presented in accordance with the rules and regulations of the United States (U.S.) Securities and Exchange Commission (SEC) and do not contain certain information included in the Company’s 2019 Annual Report on Form 10-K (Annual Report). Therefore, these interim statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report.

Recently Adopted Guidance

In June 2016, the FASB issued a new accounting standard intended to provide financial statement users with more decision-useful information about expected credit losses and other commitments to extend credit held by the reporting entity. The standard replaces the incurred loss impairment methodology in current generally accepted accounting principles (GAAP) with one that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company recorded an opening retained earnings adjustment of $7.0 with the adoption of this standard on January 1, 2020.

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on fair value measurements. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

In August 2018, the FASB issued a new accounting standard to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred

7

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

to develop or obtain internal-use software. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

New Accounting Pronouncements

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on defined benefit pension and other postretirement plans. The standard is effective on January 1, 2021, with early adoption permitted. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In December 2019, the FASB issued a new accounting standard to simplify accounting for income taxes and remove, modify, and add to the disclosure requirements of income taxes. The standard is effective January 1, 2021, with early adoption permitted. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In January 2020, the FASB issued a new accounting standard to clarify the interaction of the accounting for equity securities and investments accounted for under the equity method of accounting and the accounting for certain forward contracts and purchased options. The standard is effective January 1, 2021. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In March 2020, the FASB issued a new accounting standard to provide optional expedients and exceptions if certain conditions are met for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. The expedients and exceptions in the standard are effective between March 12, 2020, and December 31, 2022. The Company did not elect to apply any of the expedients or exceptions for the period ended September 30, 2020, and is currently evaluating the impact this new standard will have on the consolidated financial statements.

In August 2020, the FASB issued a new accounting standard to address issues identified as a result of the complexity associated with applying generally accepted accounting principles for convertible instruments and contracts in an entity's own equity. The standard is effective January 1, 2022, with early adoption permitted. The Company is evaluating the impact this new standard will have on the consolidated financial statements.

Novel Coronavirus (COVID-19) Financial Statement Impact

In March 2020, COVID-19 was declared a pandemic. COVID-19 has had and continues to have an extensive impact on the global health and economic environments. During the nine months ended September 30, 2020, the Company recorded goodwill and other asset impairment charges of $437.4, as a result of the negative financial impact of COVID-19 during the first quarter of 2020. See Note 6 Goodwill and Intangible Assets for a discussion of goodwill and intangible asset impairment and Note 2 Revenues for a discussion of credit losses and additional price concessions. The Company also impaired certain of the Company's investments by a total of $25.4 during the nine months ended September 30, 2020, due to the impact of COVID-19; $7.1 was included in Equity method earnings (loss), net during the three months ended March 31, 2020, and $13.1 and $5.2 were included in Other, net during the three months ended March 31, 2020, and June 30, 2020, respectively.

In April 2020, the Company received cash payments of approximately $55.9 from the Public Health and Social Services Emergency Fund for provider relief that was appropriated by Congress to the Department of Health and Human Services (HHS) in the Coronavirus Aid, Relief, and Economic Security Act (CARES Act Provider Relief Funds). Upon receiving and satisfying the terms and conditions associated with the distributed funds, the Company accounted for the transaction by applying the guidance in ASC 450-30 Gain Contingencies, and recorded these funds in Other, net non-operating income in the Consolidated Statement of Operations as of June 30, 2020. In August 2020, the Company received an additional $76.2 in CARES Act Provider Relief Funds. As the Company's Diagnostic business demonstrated recovery and demand for COVID-19 testing increased, the Company determined that the negative financial impact of COVID-19 which the CARES Act Provider Relief Funds were designed to address no longer applied to the Company. As a result, the Company derecognized the income associated with the $55.9 received during the second quarter as a change in estimate and did not recognize any income related to the cash payment of $76.2 received in the third quarter. The Company plans to return the CARES Act Provider Relief Funds to the government in the fourth quarter of 2020 and has recorded a liability of $132.1 in Accrued expenses and other as of September 30, 2020.

Use of Estimates

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

8

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

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.

2.      REVENUES

The Company's revenues by segment payers/customer groups for the three and nine months ended September 30, 2020, and 2019, were as follows:

	For the Three Months Ended September 30, 2020
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	21	%	1	%	—	%	—	%	—	%	—	%	22	%
Patients	5	%	—	%	—	%	—	%	—	%	—	%	5	%
Medicare and Medicaid	7	%	—	%	—	%	—	%	—	%	—	%	7	%
Third-party	33	%	1	%	—	%	—	%	—	%	—	%	34	%
Total LCD revenues by payer	66	%	2	%	—	%	—	%	—	%	—	%	68	%
CDD
Biopharmaceutical and medical device companies	16	%	—	%	4	%	4	%	2	%	6	%	32	%
Total revenues	82	%	2	%	4	%	4	%	2	%	6	%	100	%

	For the Three Months Ended September 30, 2019
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	16	%	1	%	—	%	—	%	—	%	—	%	17	%
Patients	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Medicare and Medicaid	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Third-party	25	%	2	%	—	%	—	%	—	%	—	%	27	%
Total LCD revenues by payer	57	%	3	%	—	%	—	%	—	%	—	%	60	%
CDD
Biopharmaceutical and medical device companies	21	%	—	%	5	%	4	%	3	%	7	%	40	%
Total revenues	78	%	3	%	5	%	4	%	3	%	7	%	100	%

9

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

	For the Nine Months Ended September 30, 2020
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	19	%	1	%	—	%	—	%	—	%	—	%	20	%
Patients	6	%	—	%	—	%	—	%	—	%	—	%	6	%
Medicare and Medicaid	7	%	—	%	—	%	—	%	—	%	—	%	7	%
Third-party	29	%	1	%	—	%	—	%	—	%	—	%	30	%
Total LCD revenues by payer	61	%	2	%	—	%	—	%	—	%	—	%	63	%
CDD
Biopharmaceutical and medical device companies	18	%	—	%	5	%	4	%	3	%	7	%	37	%
Total revenues	79	%	2	%	5	%	4	%	3	%	7	%	100	%

	For the Nine Months Ended September 30, 2019
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	16	%	1	%	—	%	—	%	—	%	—	%	17	%
Patients	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Medicare and Medicaid	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Third-party	26	%	2	%	—	%	—	%	—	%	—	%	28	%
Total LCD revenues by payer	58	%	3	%	—	%	—	%	—	%	—	%	61	%
CDD
Biopharmaceutical and medical device companies	20	%	—	%	4	%	5	%	3	%	7	%	39	%
Total revenues	78	%	3	%	4	%	5	%	3	%	7	%	100	%

Contract costs

CDD incurs sales commissions in the process of obtaining contracts with customers, which are recoverable through the service fees in the contract. Sales commissions that are payable upon contract award are recognized as assets and amortized over the expected contract term, along with related payroll tax expense. The amortization of commission expense is based on the weighted average contract duration for all commissionable awards in the respective business in which the commission expense is paid, which approximates the period over which goods and services are transferred to the customer. The amortization period of sales commissions ranges from approximately 1 to 5 years, depending on the business. For businesses that enter into primarily short-term contracts, the Company applies the practical expedient, which allows costs to obtain a contract to be expensed when incurred if the amortization period of the assets that would otherwise have been recognized is one year or less. Amortization of assets from sales commissions is included in selling, general, and administrative expense.

CDD incurs costs to fulfill contracts with customers, which are recoverable through the service fees in the contract. Contract fulfillment costs include software implementation costs and setup costs for certain market access solutions. These costs are recognized as assets and amortized over the expected term of the contract to which the implementation relates, which is the period over which services are expected to be provided to the customer. This period typically ranges from 2 to 5 years. Amortization of deferred contract fulfillment costs is included in cost of goods sold.

	September 30, 2020		December 31, 2019
Sales commission assets	$	32.8	$	28.6
Deferred contract fulfillment costs	12.9		14.9
Total	$	45.7	$	43.5

Amortization related to sales commission assets and associated payroll taxes for the three months ended September 30, 2020, and 2019, was $6.0 and $5.8, respectively, and for the nine months ended September 30, 2020, and 2019, was $16.8 and $15.3, respectively. Amortization related to deferred contract fulfillment costs for the three months ended September 30, 2020,

10

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

and 2019, was $2.3 and $2.3, respectively, and was $7.6 and $6.1, respectively, for the nine months ended September 30, 2020, and 2019.

Receivables, Unbilled Services and Unearned Revenue

Unbilled services are comprised primarily of unbilled receivables, but also include contract assets. A contract asset is recorded when a right to payment has been earned for work performed, but billing and payment for that work is determined by certain contractual milestones, whereas unbilled receivables are billable upon the passage of time. While CDD attempts to negotiate terms that provide for billing and payment of services prior or in close proximity to the provision of services, this is not always possible and there are fluctuations in the level of unbilled services and unearned revenue from period to period. The following table provides information about receivables, unbilled services, and unearned revenue (contract liabilities) from contracts with customers for CDD.

	September 30, 2020		December 31, 2019
Receivables, which are included in accounts receivable	$	834.0	$	771.1
Unbilled services	609.8		483.7
Unearned revenue	492.9		449.2

Revenues recognized during the period, that were included in the unearned revenue balance at the beginning of the period for the nine months ended September 30, 2020, and September 30, 2019, were $237.2 and $232.8, respectively.

Credit Loss Rollforward

With the adoption of the current expected credit loss standard in 2020, the Company estimates future expected losses on accounts receivable, unbilled services and notes receivable over the remaining collection period of the instrument. The rollforward for the allowance for credit losses for the nine months ended September 30, 2020, is as follows:

	For the Nine Months Ended September 30, 2020
	Accounts Receivable		Unbilled Services		Note and Other Receivables		Total
Allowance for credit losses as of December 31, 2019	$	19.0	$	2.3	$	—	$	21.3
Current expected credit losses opening balance impact on retained earnings	1.8		0.2		5.0		7.0
Plus, credit loss expense	10.0		3.9		0.7		14.6
Less, write offs	4.2		0.1		—		4.3
Ending allowance for credit losses	$	26.6	$	6.3	$	5.7	$	38.6

Notes and other receivables includes the $110.0 due 2022 from the Envigo transaction which is recorded in Other assets, net. During the three months ended September 30, 2020, the Company recorded an impairment for a note receivable related to an LCD investment of $0.7.

Performance Obligations Under Long-Term Contracts

Long-term contracts at the Company consist primarily of fully managed clinical studies within CDD. The amount of existing performance obligations under such long-term contracts unsatisfied as of September 30, 2020, was $4,795.0. The Company expects to recognize approximately 32% of the remaining performance obligations as of September 30, 2020, as revenue over the next 12 months, and the balance thereafter. The Company's long-term contracts generally range from 1 to 8 years.

Within CDD, revenues of $44.8 and $67.7 were recognized during the nine months ended September 30, 2020, and 2019, respectively, from performance obligations that were satisfied in previous periods. This revenue comes from adjustments related to changes in scope and estimates in full service clinical studies.

3.     BUSINESS ACQUISITIONS AND DISPOSITIONS

During the nine months ended September 30, 2020, the Company acquired various business and related assets for approximately $208.8 in cash (including contingent consideration of $6.0 and net of cash acquired), $113.4 within LCD and $95.4 within CDD. The purchase consideration for all acquisitions in the nine months ended September 30, 2020, has been allocated under the acquisition method of accounting to the estimated fair market value of the net assets acquired, including approximately $88.5 in identifiable intangible assets and a residual amount of non-tax deductible goodwill of approximately $128.9. The amortization periods for intangible assets acquired from these businesses range from 5 to 15 years for customer relationships and non-compete agreements. These acquisitions were made primarily to extend the Company's geographic reach in important market areas, enhance the Company's scientific differentiation and to expand the breadth and scope of the

11

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

Company's CRO services. The excess of the fair value of the consideration conveyed over the fair value of the net assets acquired was recorded as goodwill. The goodwill reflects the Company's expectations to utilize the acquired businesses' workforce and established relationships and the benefits of being able to leverage operational efficiencies with favorable growth opportunities in these markets.

These acquisitions contributed $13.1 and $13.8 of revenue during the three and nine months ended September 30, 2020, respectively. The acquisitions contributed $3.5 and $3.6 of operating income, during the three and nine months ended September 30, 2020, respectively.

During the nine months ended September 30, 2019, the Company acquired various businesses and related assets for approximately $852.9 in cash (net of cash acquired), $647.4 within CDD and $205.5 within LCD. The purchase consideration for all acquisitions in the nine months ended September 30, 2019, has been allocated to the estimated fair market value of the net assets acquired, including approximately $324.1 in identifiable intangible assets and a residual amount of non-tax deductible goodwill for approximately $512.3. The amortization periods for intangible assets acquired from these businesses range from 11 to 15 years for customer relationships. These acquisitions were made primarily to extend the Company's geographic reach in important market areas, enhance the Company's scientific differentiation and to expand the breadth and scope of the Company's CRO services. The excess of the fair value of the consideration conveyed over the fair value of the net assets acquired was recorded as goodwill. The goodwill reflects the Company's expectations to utilize the acquired businesses' workforce and established relationships and the benefits of being able to leverage operational efficiencies with favorable growth opportunities in these markets.

On June 3, 2019, CDD acquired Envigo's nonclinical contract research services business, expanding CDD's global nonclinical drug development capabilities with additional locations and resources. Additionally, the Company divested the Covance Research Products business (CRP), which was a part of CDD, to Envigo. As part of this sale, CDD entered into a multi-year, renewable supply agreement with Envigo. The Company paid cash consideration of $601.0 (which is included in the nine month acquisition numbers above), received a floating rate secured note of $110.0, and recorded a loss on the sale of CRP of $12.2. The Company funded the transaction through a new term loan facility.

The final valuation of acquired assets and assumed liabilities in the transaction as of June 3, 2019, include the following:

Consideration Transferred
Cash consideration	$	601.0
Fair value of CRP	110.0
Total	$	711.0
	Final June 30, 2020
Net Assets Acquired
Cash and cash equivalents	$	11.3
Accounts receivable	12.1
Unbilled services	25.6
Inventories	4.5
Prepaid expenses and other	10.8
Property, plant and equipment	128.4
Deferred income taxes	25.2
Goodwill	376.6
Customer relationships	140.8
Trade name and trademarks	0.6
Other assets	9.9
Total assets acquired	745.8
Accounts payable	15.2
Accrued expenses and other	10.4
Unearned revenue	49.9
Other liabilities	69.3
Total liabilities acquired	144.8
Net Envigo assets acquired	601.0
Floating rate secured note receivable due 2022	110.0
Total	$	711.0

12

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

The final purchase consideration for Envigo has been allocated to the estimated fair market value of the net assets acquired, including approximately $141.4 in identifiable intangible assets and a residual amount of non-tax-deductible goodwill of approximately $376.6. The amortization period for intangible assets acquired is 11 years for customer relationships.

Unaudited Pro Forma Information

Had the Company's total 2019 and 2020 acquisitions been completed as of January 1, 2018, or January 1, 2019, respectively, the Company's pro forma results would have been as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Revenues	$	3,899.7	$	2,969.0	$	9,524.2	$	8,827.7
Net earnings attributable to Laboratory Corporation of America Holdings	$	744.9	$	224.3	$	666.3	$	612.9

4.      EARNINGS PER SHARE

Basic earnings per share is computed by dividing net earnings attributable to Laboratory Corporation of America Holdings by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings including the impact of dilutive adjustments by the weighted average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock awards, restricted stock units, and performance share awards.

The following represents a reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended September 30,										Nine Months Ended September 30,
	2020					2019					2020					2019
	Earnings		Shares	Per Share Amount		Earnings		Shares	Per Share Amount		Earning		Shares	Per Share Amount		Earnings		Shares	Per Share Amount
Basic earnings per share:
Net earnings	$	703.4	97.4	$	7.22	$	220.7	97.6	$	2.26	$	617.8	97.3	$	6.35	$	596.7	98.1	$	6.08
Dilutive effect of employee stock options and awards	—		0.7			—		0.7			—		0.6			—		0.7
Net earnings including impact of dilutive adjustments	$	703.4	98.1	$	7.17	$	220.7	98.3	$	2.25	$	617.8	97.9	$	6.31	$	596.7	98.8	$	6.04

Diluted earnings per share represent the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. These potential shares include dilutive stock options and unissued restricted stock awards. The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Employee stock options and awards	0.2	0.2	0.4	0.2

5.      RESTRUCTURING AND OTHER CHARGES

During the nine months ended September 30, 2020, the Company recorded net restructuring and other charges of $38.9: $13.4 within LCD and $25.5 within CDD. The charges were comprised of $12.8 related to severance and other personnel costs, $11.0 for a CDD leased lab facility and equipment impairments, and $24.0 in facility closures, impairment of operating lease right-of use assets and general integration activities. The charges were offset by the reversal of previously established liability of $1.1 and $7.8 in unused severance costs and facility-related costs, respectively.

During the nine months ended September 30, 2019, the Company recorded net restructuring and other charges of $48.4: $22.8 within LCD and $25.6 within CDD. The charges were comprised of $26.2 related to severance and other personnel costs and $22.0 in costs associated with facility closures, impairment of operating lease right-of-use assets and general integration initiatives. The charges were increased by the adjustment of previously established reserves of $0.4 in severance reserves and decreased by a reversal of $0.2 in unused facility reserves.

13

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

The following represents the Company’s restructuring reserve activities for the period indicated:

	LCD				CDD
	Severance and Other Employee Costs		Facility Costs		Severance and Other Employee Costs		Facility Costs		Total
Balance as of December 31, 2019	$	0.5	$	2.7	$	5.5	$	4.7	$	13.4
Restructuring charges	3.9		5.2		8.9		6.7		24.7
Impairment of lab facility and equipment	—		5.8		—		17.3		23.1
Cash payments and other adjustments	(4.4)		(12.2)		(10.4)		(23.8)		(50.8)
Balance as of September 30, 2020	$	—	$	1.5	$	4.0	$	4.9	$	10.4
Current									$	8.1
Non-current									2.3
									$	10.4

6.      GOODWILL AND INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the nine months ended September 30, 2020, are as follows:

	LCD		CDD		Total
Balance as of December 31, 2019	$	3,721.5	$	4,143.5	$	7,865.0
Goodwill acquired during the period	66.1		73.0		139.1
Impairment	(3.7)		(418.7)		(422.4)
Foreign currency impact and other adjustments to goodwill	(2.2)		34.3		32.1
Balance as of September 30, 2020	$	3,781.7	$	3,832.1	$	7,613.8

The Company assesses goodwill and indefinite-lived intangibles for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Based upon the revised forecasted revenues and operating income following the declaration of the COVID-19 global pandemic, management concluded there was a triggering event and updated its annual 2019 goodwill impairment testing as of March 31, 2020, for its CDD reporting units and its LCD reporting units. Based on the quantitative impairment assessment, the Company concluded that the fair value was less than carrying value for two of its reporting units, including one where the 2019 fair value exceeded carrying value by approximately 10.0%, and recorded a goodwill impairment of $418.7 for the CDD segment and $3.7 for LCD segment.

The Company utilized a combination of income and market approaches to determine the fair value of the CDD reporting units. Based upon the results of the quantitative assessments, the Company concluded that the fair value was less than its carrying value for one of the CDD reporting units. A non-cash charge of $418.7 was recognized and included in goodwill and other asset impairments on the Consolidated Statement of Operations to reduce the carrying amount of goodwill for the CDD reporting unit to fair value. Following the impairment charge, the carrying value of goodwill for this reporting unit is $1,627.5 as of September 30, 2020. The other CDD reporting unit evaluated indicated a fair value that exceeded carrying value by less than 10.0%. Management notes that a +1.0% change in the discount rate in the March 31, 2020 analysis would reduce the headroom to approximately 2.0%. Goodwill for this reporting unit as of September 30, 2020 is $646.2.

The Company utilized the income approach to determine the fair value of the LCD reporting units. Based upon the results of the quantitative assessments, the Company concluded the fair value of one of the reporting units was less than its carrying value. A non-cash charge of $3.7 was recognized and included in goodwill and other asset impairments on the Consolidated Statement of Operations to reduce the carrying amount of goodwill for this LCD reporting unit to zero. The other LCD reporting unit evaluated indicated a fair value that exceeded carrying value by less than 10.0%. Management notes that a +1.0% change in the discount rate in the March 31, 2020 analysis would cause the fair value to be less than carrying value and would result in an impairment of approximately $40.0. Goodwill and indefinite-lived intangibles of Canadian licenses for this reporting unit as of September 30, 2020, were $86.0 and $468.4, respectively.

Although the Company believes that the current assumptions and estimates used in its goodwill analysis are reasonable, supportable, and appropriate, continued efforts to maintain or improve the performance of these businesses could be impacted by unfavorable or unforeseen changes which could impact the existing assumptions used in the impairment analysis. Various factors could reasonably be expected to unfavorably impact existing assumptions: primarily delays in new customer bookings and the related delay in revenue from new customers, increases in customer termination activity or increases in operating costs. In addition, given the ongoing and rapidly changing nature of the COVID-19 pandemic, there is significant uncertainty

14

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

regarding the duration and severity of the pandemic as well as any future government restrictions, which may unfavorably impact existing assumptions. Accordingly, there can be no assurance that the estimates and assumptions made for the purposes of the goodwill impairment analysis will prove to be accurate predictions of future performance. 

The Company will continue to monitor the financial performance of and assumptions for its reporting units. Management's impairment analysis utilizes significant judgments and assumptions related to the market comparable method analysis, such as selected market multiples, and those related to cash flow projections, such as revenue and terminal growth rates, projected operating margin, and the discount rate. A significant increase in the discount rate, decrease in the revenue and terminal growth rates, decreased operating margin, or substantial reductions in end markets and volume assumptions, could have a negative impact on the estimated fair value of the reporting units. A future impairment charge for goodwill or intangible assets could have a material effect on the Company's consolidated financial position and results of operations.

The components of identifiable intangible assets are as follows:

	September 30, 2020						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	4,530.7	$	(1,473.1)	$	3,057.6	$	4,441.7	$	(1,329.5)	$	3,112.2
Patents, licenses and technology	427.7		(245.3)		182.4		453.6		(235.7)		217.9
Non-compete agreements	105.3		(67.6)		37.7		90.9		(60.5)		30.4
Trade name	410.2		(240.1)		170.1		408.2		(219.9)		188.3
Land use right	10.8		(6.5)		4.3		10.9		(5.5)		5.4
Canadian licenses	468.4		—		468.4		480.3		—		480.3
	$	5,953.1	$	(2,032.6)	$	3,920.5	$	5,885.6	$	(1,851.1)	$	4,034.5

The Company recorded non-cash charges of $30.5 for the impairment of identifiable intangible assets during the nine months ended September 30, 2020, within CDD. During the three months ended March 31, 2020, a $2.7 impairment charge was recorded for a tradename. During the three months ended September 30, 2020, additional impairment charges of $10.1 and $17.7 for customer relationships and technology intangible assets, respectively were recorded due to the loss of a contract from a prior acquisition.

Amortization of intangible assets for the three months ended September 30, 2020, and 2019, was $62.2 and $61.7, respectively and for the nine months ended September 30, 2020, and 2019 was $184.6 and $179.0, respectively. Amortization expense for the net carrying amount of intangible assets is estimated to be $60.0 for the remainder of fiscal 2020, $238.5 in fiscal 2021, $232.6 in fiscal 2022, $229.5 in fiscal 2023, $224.6 in fiscal 2024, and $2,380.2 thereafter.

7.  DEBT

Short-term borrowings and the current portion of long-term debt at September 30, 2020, and December 31, 2019, consisted of the following:

	September 30, 2020		December 31, 2019
4.625% senior notes due 2020	$	—	$	413.7
2019 Term Loan	375.0		—
Debt issuance costs	(0.6)		(0.7)
Current portion of note payable	2.2		2.2
Total short-term borrowings and current portion of long-term debt	$	376.6	$	415.2

15

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

Long-term debt at September 30, 2020, and December 31, 2019, consisted of the following:

	September 30, 2020		December 31, 2019
3.20% senior notes due 2022	$	500.0	$	500.0
3.75% senior notes due 2022	500.0		500.0
4.00% senior notes due 2023	300.0		300.0
3.25% senior notes due 2024	600.0		600.0
2.30% senior notes due 2024	400.0		400.0
3.60% senior notes due 2025	1,000.0		1,000.0
3.60% senior notes due 2027	600.0		600.0
2.95% senior notes due 2029	650.0		650.0
4.70% senior notes due 2045	900.0		900.0
2019 Term Loan	—		375.0
Debt issuance costs	(38.8)		(42.2)
Note payable	6.1		7.0
Total long-term debt	$	5,417.3	$	5,789.8

Senior Notes

On August 17, 2020, the Company redeemed the remaining $412.2 of its 4.625% Senior Notes due November 15, 2020, using available cash on hand. The Company exited the remaining fixed-to-variable interest rate swap arrangement in August 2020, in connection with this redemption and recorded a gain of $1.6 on the extinguishment. The gain was included in Other, net on the Condensed Consolidated Statement of Operations.

Credit Facilities

On June 3, 2019, the Company entered into a new $850.0 2019 term loan facility that matures on June 3, 2021. The 2019 term loan facility accrues interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin ranging from 0.55% to 1.175%, or a base rate determined according to a prime rate or federal funds rate plus a margin ranging from 0.0% to 0.175%. The 2019 term loan balance at September 30, 2020, and December 31, 2019, was $375.0 and $375.0, respectively. As of September 30, 2020, the effective interest rate on the 2019 term loan was 0.95%.

The Company also maintains a senior revolving credit facility consisting of a five-year facility in the principal amount of up to $1,000.0, with the option of increasing the facility by up to an additional $350.0, subject to the agreement of one or more new or existing lenders to provide such additional amounts and certain other customary conditions. The revolving credit facility also provides for a subfacility of up to $100.0 for swing line borrowings and a subfacility of up to $150.0 for issuances of letters of credit. The Company is required to pay a facility fee on the aggregate commitments under the revolving credit facility, at a per annum rate ranging from 0.00% to 0.25%. The revolving credit facility is permitted to be used for general corporate purposes, including working capital, capital expenditures, funding of share repurchases and certain other payments, acquisitions and other investments. There were no balances outstanding on the Company's current revolving credit facility at September 30, 2020, and December 31, 2019. As of September 30, 2020, the effective interest rate on the revolving credit facility was 1.12%. The credit facility expires on September 15, 2022.

Under the term loan facility and the revolving credit facility, the Company is subject to negative covenants limiting subsidiary indebtedness and certain other covenants typical for investment grade-rated borrowers, and the Company is required to maintain certain leverage ratios. In May 2020, the Company entered into amendments to its term loan facility and its revolving credit facility, in each case to, among other things, increase the maximum leverage ratio covenant to 5.0x debt to last twelve months EBITDA for each of the three periods ended June 30, September 30, and December 31, 2020, and 4.5x for period ended March 31, 2021. From and including the period ending June 30, 2021, the maximum leverage ratio reverts back to 4.0x. The Company was in compliance with all covenants in the term loan facility and the revolving credit facility at September 30, 2020, and expects that it will remain in compliance with its existing debt covenants for the next twelve months.

The Company's availability of $997.0 at September 30, 2020, under its revolving credit facility reflects a reduction equivalent to the amount of the Company's outstanding letters of credit.

Liquidity

At September 30, 2020, the Company had $667.2 of cash and cash equivalents and $997.0 of available borrowings under its revolving credit facility, which does not mature until 2022, and the Company was in compliance with all of its debt covenants. In May 2020, in order to obtain increased financial covenant flexibility, the Company and its lenders entered into amendments

16

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

to the term loan facility and the revolving credit facility to increase the maximum leverage ratio to 5.0x debt to last twelve months EBITDA for the three month periods ending June 30, September 30 and December 31, 2020, and 4.5x for the period ended March 31, 2021. From and including the period ending June 30, 2021, the maximum leverage ratio reverts back to 4.0x. The amendments also provide that during any period in which the Company's leverage ratio exceeds 4.5x debt to last twelve months EBITDA (i) the Company will be prohibited from consummating share repurchases, subject to limited exceptions, (ii) borrowings under the revolving credit facility will accrue interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin of 1.25% or a base rate plus a margin of 0.25%, (iii) the facility fee that the Company is required to pay on the aggregate commitments under the revolving credit facility will be 0.25% per annum, and (iv) borrowings under the term loan facility will accrue interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin of 1.175% or a base rate plus a margin of 0.175%.

The Company is closely monitoring the impact of the COVID-19 pandemic on all aspects of its business and the effects such impacts are having and will have on the Company's liquidity. The significance of the impact on the Company’s business is not yet certain and depends on numerous evolving factors that the Company may not be able to accurately predict.

8. PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY

The Company is authorized to issue up to 265.0 shares of common stock, par value $0.10 per share. The Company is authorized to issue up to 30.0 shares of preferred stock, par value $0.10 per share. There were no preferred shares outstanding as of September 30, 2020, and December 31, 2019.

The changes in common shares issued are summarized below:

	Issued and Outstanding
Common shares at December 31, 2019	97.2
Common stock issued under employee stock plans	0.8
Retirement of common stock	(0.6)
Common shares at September 30, 2020	97.4

Share Repurchase Program

At the end of 2019, the Company had outstanding authorization from the board of directors to purchase $900.0 of Company common stock. During three months ended March 31, 2020, the Company purchased 0.6 shares of its common stock. When the Company repurchases shares, the amount paid to repurchase the shares in excess of the par or stated value is allocated to additional paid-in-capital unless subject to limitation or the balance in additional paid-in-capital is exhausted. Remaining amounts are recognized as a reduction in retained earnings. As of September 30, 2020, the Company had outstanding authorization from the board of directors to purchase up to $800.0 of the Company's common stock. The repurchase authorization has no expiration date. The Company reinstated its share repurchase program in October 2020 following the temporary suspension of stock repurchases beginning in March 2020 as a result of the anticipated impact of the COVID-19 pandemic.

Accumulated Other Comprehensive Earnings

     The components of accumulated other comprehensive earnings (loss) are as follows:

	Foreign Currency Translation Adjustments		Net Benefit Plan Adjustments		Accumulated Other Comprehensive Earnings (Loss)
Balance as of December 31, 2019	$	(285.4)	$	(87.0)	$	(372.4)
Current year adjustments	52.4		7.5		59.9
Tax effect of adjustments	—		(2.1)		(2.1)
Balance as of September 30, 2020	$	(233.0)	$	(81.6)	$	(314.6)

9.     INCOME TAXES

The Company does not recognize a tax benefit unless it concludes that it is more likely than not that the benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, the Company recognizes a tax benefit measured at the largest amount of the tax benefit that it believes is greater than 50% likely to be realized.

The gross unrecognized income tax benefits were $41.3 and $31.7 at September 30, 2020, and December 31, 2019, respectively. It is anticipated that the amount of the unrecognized income tax benefits will change within the next 12 months;

17

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

however, these changes are not expected to have a significant impact on the results of operations, cash flows or the financial position of the Company.

As of September 30, 2020, and December 31, 2019, $41.3 and $31.7, respectively, are the approximate amounts of gross unrecognized income tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods.

The Company recognizes interest and penalties related to unrecognized income tax benefits in income tax expense. Accrued interest and penalties related to uncertain tax positions totaled $9.0 and $5.5 as of September 30, 2020, and December 31, 2019, respectively.

The Company has substantially concluded all U.S. federal income tax matters for years through 2016. Substantially all material state and local and foreign income tax matters have been concluded through 2015 and 2011, respectively.

The Company has various state and foreign income tax examinations ongoing throughout the year. The Company believes adequate provisions have been recorded related to all open tax years.

10.     COMMITMENTS AND CONTINGENCIES

The Company is involved from time to time in various claims and legal actions, including arbitrations, class actions, and other litigation (including those described in more detail below), arising in the ordinary course of business. Some of these actions involve claims that are substantial in amount. These matters include, but are not limited to, intellectual property disputes; commercial and contract disputes; professional liability claims; employee-related matters; and inquiries, including subpoenas and other civil investigative demands, from governmental agencies, Medicare or Medicaid payers and MCOs reviewing billing practices or requesting comment on allegations of billing irregularities that are brought to their attention through billing audits or third parties. The Company receives civil investigative demands or other inquiries from various governmental bodies in the ordinary course of its business. Such inquiries can relate to the Company or other parties, including physicians and other health care providers. The Company works cooperatively to respond to appropriate requests for information.

The Company also is named from time to time in suits brought under the qui tam provisions of the False Claims Act and comparable state laws. These suits typically allege that the Company has made false statements and/or certifications in connection with claims for payment from U.S. federal or state healthcare programs. The suits may remain under seal (hence, unknown to the Company) for some time while the government decides whether to intervene on behalf of the qui tam plaintiff. Such claims are an inevitable part of doing business in the healthcare field today.

The Company believes that it is in compliance in all material respects with all statutes, regulations, and other requirements applicable to its commercial laboratory operations and drug development support services. The healthcare diagnostics and drug development industries are, however, subject to extensive regulation, and the courts have not interpreted many of the applicable statutes and regulations. Therefore, the applicable statutes and regulations could be interpreted or applied by a prosecutorial, regulatory, or judicial authority in a manner that would adversely affect the Company. Potential sanctions for violation of these statutes and regulations include significant civil and criminal penalties, fines, the loss of various licenses, certificates and authorizations, additional liabilities from third-party claims, and/or exclusion from participation in government programs.

Many of the current claims and legal actions against the Company are in preliminary stages, and many of these cases seek an indeterminate amount of damages. The Company records an aggregate legal reserve, which is determined using calculations based on historical loss rates and assessment of trends experienced in settlements and defense costs. In accordance with FASB Accounting Standards Codification Topic 450 “Contingencies,” the Company establishes reserves for judicial, regulatory, and arbitration matters outside the aggregate legal reserve if and when those matters present loss contingencies that are both probable and estimable and would exceed the aggregate legal reserve. When loss contingencies are not both probable and estimable, the Company does not establish separate reserves.

The Company is unable to estimate a range of reasonably probable loss for the proceedings described in more detail below in which damages either have not been specified or, in the Company's judgment, are unsupported and/or exaggerated and (i) the proceedings are in early stages; (ii) there is uncertainty as to the outcome of pending appeals or motions; (iii) there are significant factual issues to be resolved; and/or (iv) there are novel legal issues to be presented. For these proceedings, however, the Company does not believe, based on currently available information, that the outcomes will have a material adverse effect on the Company's financial condition, though the outcomes could be material to the Company's operating results for any particular period, depending, in part, upon the operating results for such period.

As previously reported, the Company responded to an October 2007 subpoena from the U.S. Department of Health & Human Services Office of Inspector General's regional office in New York. On August 17, 2011, the U.S. District Court for the

18

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

Southern District of New York unsealed a False Claims Act lawsuit, United States of America ex rel. NPT Associates v. Laboratory Corporation of America Holdings, which alleges that the Company offered UnitedHealthcare kickbacks in the form of discounts in return for Medicare business. The Plaintiff's Third Amended Complaint further alleges that the Company's billing practices violated the False Claims Acts of 14 states and the District of Columbia. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. Neither the U.S. government nor any state government has intervened in the lawsuit. The Company's Motion to Dismiss was granted in October 2014 and Plaintiff was granted the right to replead. On January 11, 2016, Plaintiff filed a motion requesting leave to file an amended complaint under seal and to vacate the briefing schedule for the Company's Motion to Dismiss, while the government reviews the amended complaint. The Court granted the motion and vacated the briefing dates. Plaintiff then filed the Amended Complaint under seal. The Company will vigorously defend the lawsuit.

In addition, the Company has received various other subpoenas since 2007 related to Medicaid billing. In October 2009, the Company received a subpoena from the State of Michigan Department of Attorney General seeking documents related to its billing to Michigan Medicaid. The Company cooperated with this request. In October 2013, the Company received a Civil Investigative Demand from the State of Texas Office of the Attorney General requesting documents related to its billing to Texas Medicaid. The Company cooperated with this request. On October 5, 2018, the Company received a second Civil Investigative Demand from the State of Texas Office of the Attorney General requesting documents related to its billing to Texas Medicaid. The Company is cooperating with this request.

On August 31, 2015, the Company was served with a putative class action lawsuit, Patty Davis v. Laboratory Corporation of America, et al., filed in the Circuit Court of the Thirteenth Judicial Circuit for Hillsborough County, Florida. The complaint alleges that the Company violated the Florida Consumer Collection Practices Act by billing patients who were collecting benefits under the Workers' Compensation Statutes. The lawsuit seeks injunctive relief and actual and statutory damages, as well as recovery of attorney's fees and legal expenses. In April 2017, the Circuit Court granted the Company’s Motion for Judgment on the Pleadings. The Plaintiff appealed the Circuit Court’s ruling to the Florida Second District Court of Appeal. On October 16, 2019, the Court of Appeal reversed the Circuit Court’s dismissal, but certified a controlling issue of Florida law to the Florida Supreme Court. On February 17, 2020, the Florida Supreme Court accepted jurisdiction of the lawsuit. The Court has scheduled oral arguments for December 9, 2020. The Company will vigorously defend the lawsuit.

In December 2014, the Company received a Civil Investigative Demand issued pursuant to the U.S. False Claims Act from the U.S. Attorney's Office for South Carolina, which requested information regarding alleged remuneration and services provided by the Company to physicians who also received draw and processing/handling fees from competitor laboratories Health Diagnostic Laboratory, Inc. (HDL) and Singulex, Inc. (Singulex). The Company cooperated with the request. On April 4, 2018, the U.S. District Court for the District of South Carolina, Beaufort Division, unsealed a False Claims Act lawsuit, United States of America ex rel. Scarlett Lutz, et al. v. Laboratory Corporation of America Holdings, which alleges that the Company's financial relationships with referring physicians violate federal and state anti-kickback statutes. The Plaintiffs' Fourth Amended Complaint further alleges that the Company conspired with HDL and Singulex in violation of the Federal False Claims Act and the California and Illinois insurance fraud prevention acts by facilitating HDL's and Singulex's offers of illegal inducements to physicians and the referral of patients to HDL and Singulex for laboratory testing. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. Neither the U.S. government nor any state government has intervened in the lawsuit. The Company filed a Motion to Dismiss seeking the dismissal of the claims asserted under the California and Illinois insurance fraud prevention statutes, the conspiracy claim, the reverse False Claims Act claim, and all claims based on the theory that the Company performed medically unnecessary testing. On January 16, 2019, the Court entered an order granting in part and denying in part the Motion to Dismiss. The Court dismissed the Plaintiffs' claims based on the theory that the Company performed medically unnecessary testing, the claims asserted under the California and Illinois insurance fraud prevention statutes, and the reverse False Claims Act claim. The Court denied the Motion to Dismiss as to the conspiracy claim. The Company will vigorously defend the lawsuit.

Prior to the Company's acquisition of Sequenom, Inc. (Sequenom) between August 15, 2016 and August 24, 2016, six putative class-action lawsuits were filed on behalf of purported Sequenom stockholders (captioned Malkoff v. Sequenom, Inc., et al., No. 16-cv-02054- JAH-BLM, Gupta v. Sequenom, Inc., et al., No. 16-cv-02084-JAH-KSC, Fruchter v. Sequenom, Inc., et al., No. 16-cv-02101- WQH-KSC, Asiatrade Development Ltd. v. Sequenom, Inc., et al., No. 16-cv-02113-AJB-JMA, Nunes v. Sequenom, Inc., et al., No. 16-cv-02128-AJB-MDD, and Cusumano v. Sequenom, Inc., et al., No. 16-cv-02134-LAB-JMA) in the U.S. District Court for the Southern District of California challenging the acquisition transaction. The complaints asserted claims against Sequenom and members of its board of directors (the Individual Defendants). The Nunes action also named the Company and Savoy Acquisition Corp. (Savoy), a wholly owned subsidiary of the Company, as defendants. The complaints alleged that the defendants violated Sections 14(e), 14(d)(4) and 20 of the Securities Exchange Act of 1934 by failing to

19

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

disclose certain allegedly material information. In addition, the complaints in the Malkoff action, the Asiatrade action, and the Cusumano action alleged that the Individual Defendants breached their fiduciary duties to Sequenom shareholders. The actions sought, among other things, injunctive relief enjoining the merger. On August 30, 2016, the parties entered into a Memorandum of Understanding (MOU) in each of the above-referenced actions. On September 6, 2016, the Court entered an order consolidating for all pre-trial purposes the six individual actions described above under the caption In re Sequenom, Inc. Shareholder Litig., Lead Case No. 16-cv-02054-JAH-BLM, and designating the complaint from the Malkoff action as the operative complaint for the consolidated action. On November 11, 2016, two competing motions were filed by two separate stockholders (James Reilly and Shikha Gupta) seeking appointment as lead plaintiff under the terms of the Private Securities Litigation Reform Act of 1995. On June 7, 2017, the Court entered an order declaring Mr. Reilly as the lead plaintiff and approving Mr. Reilly's selection of lead counsel. The parties agree that the MOU has been terminated. The Plaintiffs filed a Consolidated Amended Class Action Complaint on July 24, 2017, and the Defendants filed a Motion to Dismiss, which remains pending. On March 13, 2019, the Court stayed the action in its entirety pending the U.S. Supreme Court's anticipated decision in Emulex Corp. v. Varjabedian. On April 23, 2019, however, the U.S. Supreme Court dismissed the writ of certiorari in Emulex as improvidently granted. The Company will vigorously defend the lawsuit.

On March 10, 2017, the Company was served with a putative class action lawsuit, Victoria Bouffard, et al. v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Middle District of North Carolina. The complaint alleges that the Company's patient list prices unlawfully exceed the rates negotiated for the same services with private and public health insurers in violation of various state consumer protection laws. The lawsuit also alleges breach of implied contract or quasi-contract, unjust enrichment, and fraud. The lawsuit seeks statutory, exemplary, and punitive damages, injunctive relief, and recovery of attorney's fees and costs. In May 2017, the Company filed a Motion to Dismiss Plaintiffs' Complaint and Strike Class Allegations; the Motion to Dismiss was granted in March 2018 without prejudice. On October 10, 2017, a second putative class action lawsuit, Sheryl Anderson, et al. v. Laboratory Corporation of America Holdings, was filed in the U.S. District Court for the Middle District of North Carolina. The complaint contained similar allegations and sought similar relief to the Bouffard complaint, and added additional counts regarding state consumer protection laws. On August 10, 2018, the Plaintiffs filed an Amended Complaint, which consolidated the Bouffard and Anderson actions. On September 10, 2018, the Company filed a Motion to Dismiss Plaintiffs' Amended Complaint and Strike Class Allegations. On August 16, 2019, the Court entered an order granting in part and denying in part the Motion to Dismiss the Amended Complaint, and denying the Motion to Strike the Class Allegations. The Company will vigorously defend the lawsuit.

On April 1, 2019, Covance Research Products was served with a Grand Jury Subpoena issued by the Department of Justice (DOJ) in Miami, Florida requiring the production of documents related to the importation into the United States of live non-human primate shipments originating from or transiting through China, Cambodia, and/or Vietnam from April 1, 2014 through March 28, 2019. The Company is cooperating with the DOJ.

On May 14, 2019, Retrieval-Masters Creditors Bureau, Inc. d/b/a American Medical Collection Agency (AMCA), an external collection agency, notified the Company about a security incident AMCA experienced that may have involved certain personal information about some of the Company’s patients (the AMCA Incident). The Company referred patient balances to AMCA only when direct collection efforts were unsuccessful. The Company’s systems were not impacted by the AMCA Incident. Upon learning of the AMCA Incident, the Company promptly stopped sending new collection requests to AMCA and stopped AMCA from continuing to work on any pending collection requests from the Company. AMCA informed the Company that it appeared that an unauthorized user had access to AMCA’s system between August 1, 2018, and March 30, 2019, and that AMCA could not rule out the possibility that personal information on AMCA’s system was at risk during that time period. Information on AMCA’s affected system from the Company may have included name, address, and balance information for the patient and person responsible for payment, along with the patient’s phone number, date of birth, referring physician, and date of service. The Company was later informed by AMCA that health insurance information may have been included for some individuals, and because some insurance carriers utilize the Social Security Number as a subscriber identification number, the Social Security Number for some individuals may also have been affected. No ordered tests, laboratory test results, or diagnostic information from the Company were in the AMCA affected system. The Company notified individuals for whom it had a valid mailing address. For the individuals whose Social Security Number was affected, the notice included an offer to enroll in credit monitoring and identity protection services that will be provided free of charge for 24 months.

Twenty-three putative class action lawsuits were filed against the Company related to the AMCA Incident in various U.S. District Courts. Numerous similar lawsuits have been filed against other health care providers who used AMCA. These lawsuits have been consolidated into a multidistrict litigation in the District of New Jersey. On November 15, 2019, the Plaintiffs filed a Consolidated Class Action Complaint in the U.S. District Court of New Jersey. On January 22, 2020, the Company filed Motions to Dismiss all claims. The consolidated Complaint generally alleges that the Company did not adequately protect its

20

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

patients’ data and failed to timely notify those patients of the AMCA Incident. The Complaint asserts various causes of action, including but not limited to negligence, breach of implied contract, unjust enrichment, and the violation of state data protection statutes. The Complaint seeks damages on behalf of a class of all affected Company customers. The Company will vigorously defend the multi-district litigation.

The Company was served with a shareholder derivative lawsuit, Raymond Eugenio, Derivatively on Behalf of Nominal Defendant, Laboratory Corporation of America Holdings v. Lance Berberian, et al., filed in the Court of Chancery of the State of Delaware on April 23, 2020. The complaint asserts derivative claims on the Company’s behalf against the Company’s board of directors and certain executive officers. The complaint generally alleges that the defendants failed to ensure that the Company utilized proper cybersecurity safeguards and failed to implement a sufficient response to data security incidents, including the AMCA Incident. The complaint asserts derivative claims for breach of fiduciary duty and seeks relief including damages, certain disclosures, and certain changes to the Company’s internal governance practices. On June 2, 2020, the Company filed a Motion to Stay the lawsuit due to its overlap with the multi-district litigation referenced above. On July 2, 2020, the Company filed a Motion to Dismiss. On July 14, 2020, the Court entered an order staying the lawsuit pending the resolution of the multi-district litigation. The lawsuit will be vigorously defended.

Certain governmental entities have requested information from the Company related to the AMCA Incident. The Company received a request for information from the Office for Civil Rights (OCR) of the Department of Health and Human Services. On April 28, 2020, OCR notified the Company of the closure of its inquiry. The Company has also received requests from a multi-state group of state Attorneys General and is cooperating with these requests for information.

Three putative class action lawsuits related to California wage and hour laws have been served on the Company. On September 21, 2018, the Company was served with a putative class action lawsuit, Alma Haro v. Laboratory Corporation of America, et al., filed in the Superior Court of California, County of Los Angeles. On June 10, 2019, the Company was served with a putative class action lawsuit, Ignacio v. Laboratory Corporation of America, filed in Superior Court of California, County of Los Angeles. On July 1, 2019, the Company was served with a putative class action lawsuit, Jan v. Laboratory Corporation of America, filed in the Superior Court of California, County of Sacramento. All three lawsuits were subsequently removed to the U.S. District Court for the Central District of California, and then consolidated for all pre-trial proceedings. In the lawsuits, the Plaintiffs allege that employees were not properly paid overtime compensation, minimum wages, meal and rest break premiums, did not receive compliant wage statements, and were not properly paid wages upon termination of employment. The Plaintiffs assert these actions violate various California Labor Code provisions and constitute an unfair competition practice under California law. The lawsuits seek monetary damages, civil penalties, and recovery of attorney's fees and costs. On July 22, 2020, the Court issued an order granting preliminary approval of a settlement resolving all three lawsuits. If the settlement does not receive final approval, the Company will vigorously defend the lawsuits.

On July 30, 2019, the Company was served with a class action lawsuit, Mitchell v. Covance, Inc. et al., filed in the U.S. District Court for the Eastern District of Pennsylvania. Plaintiff alleges that certain individuals employed by Covance Inc. and Chiltern International Inc. were misclassified as exempt employees under the Fair Labor Standards Act and the Pennsylvania Minimum Wage Act and were thereby not properly paid overtime compensation. The lawsuit seeks monetary damages, liquidated damages, and recovery of attorneys’ fees and costs. On February 3, 2020, the Court denied without prejudice the Plaintiff's motion to conditionally certify a putative class action. On July 20, 2020, Plaintiff executed a settlement agreement resolving the lawsuit.

On January 31, 2020, the Company was served with a putative class action lawsuit, Luke Davis and Julian Vargas, et al. v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Central District of California. The lawsuit alleges that visually impaired patients are unable to use the Company's touchscreen kiosks at Company patient service centers in violation of the Americans with Disabilities Act and similar California statutes. The lawsuit seeks statutory damages, injunctive relief, and attorney's fees and costs. On March 20, 2020, the Company filed a Motion to Dismiss Plaintiffs' Complaint and to Strike Class Allegations. In August 2020, the Plaintiffs filed an Amended Complaint. The Company will vigorously defend the lawsuit.

On May 14, 2020, the Company was served with a putative class action lawsuit, Jose Bermejo v. Laboratory Corporation of America filed in the Superior Court of California, County of Los Angeles Central District, alleging that certain non-exempt California-based employees were not properly compensated for driving time or properly paid wages upon termination of employment. The Plaintiff asserts these actions violate various California Labor Code provisions and Section 17200 of the Business and Professional Code. The lawsuit seeks monetary damages, civil penalties, and recovery of attorney’s fees and costs. On June 15, 2020, the lawsuit was removed to the U.S. District Court for the Central District of California. On June 16, 2020, the Company was served with a Private Attorney General Act lawsuit by the same plaintiff in Jose Bermejo v. Laboratory

21

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

Corporation of America, filed in the Superior Court of California, County of Los Angeles Central District, alleging that certain Company practices violated California Labor Code penalty provisions related to unpaid and minimum wages, unpaid overtime, unpaid mean and rest break premiums, untimely payment of wages following separation of employment, failure to maintain accurate pay records, and non-reimbursement of business expenses. The second lawsuit seeks to recover civil penalties and recovery of attorney's fees and costs. The Company will vigorously defend both lawsuits.

On August 14, 2020, the Company was served with a Subpoena Duces Tecum issued by the State of Colorado Office of the Attorney General requiring the production of documents related to urine drug testing in all states. The Company is cooperating with this request.

On October 2, 2020, the Company was served with a putative class action lawsuit, Peterson v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Northern District of New York, alleging claims for a failure to properly pay service representatives compensation for all hours worked and overtime under the Fair Labor Standards Act, as well as notice and recordkeeping claims under the New York Labor Code. The lawsuit seeks monetary damages, liquidated damages, equitable and injunctive relief, and recovery of attorney's fees and costs. The Company will vigorously defend the lawsuit.

On October 5, 2020, the Company was served with a putative class action lawsuit, Williams v. LabCorp Employer Services, Inc. et al, filed in the Superior Court of California, County of Los Angeles, alleging that certain non-exempt California-based employees were not properly compensated for work and overtime hours, not properly paid meal and rest break premiums, not reimbursed for certain business-related expenses, not properly paid for driving or wait times, and received inaccurate wage statements. The Plaintiff also asserts claims for unfair competition under Section 17200 of the Business and Professional Code. The lawsuit seeks monetary damages, liquidated damages, civil penalties, and recovery of attorney's fees and costs. The Company will vigorously defend the lawsuit.

Under the Company's present insurance programs, coverage is obtained for catastrophic exposure as well as those risks required to be insured by law or contract. The Company is responsible for the uninsured portion of losses related primarily to general, professional and vehicle liability, certain medical costs and workers' compensation. The self-insured retentions are on a per-occurrence basis without any aggregate annual limit. Provisions for losses expected under these programs are recorded based upon the Company's estimates of the aggregated liability of claims incurred.

11.     PENSION AND POSTRETIREMENT PLANS

Retirement Plans

All employees eligible for the LCD defined-contribution retirement plan (LCD 401(k) Plan) receive a minimum 3% non-elective contribution (NEC) concurrent with each payroll period. Employees are not required to make a contribution to the LCD 401(k) Plan to receive the NEC. The NEC is non-forfeitable and vests immediately. The LCD 401(k) Plan also permits discretionary contributions by the Company of 1% to 3% of pay for eligible employees based on service. The Company incurred expense of $14.0 and $16.7 for the LCD 401(k) Plan during the three months ended September 30, 2020, and 2019, respectively, and $41.4 and $48.9 during the nine months ended September 30, 2020, and 2019, respectively.

All of the CDD U.S. employees are eligible to participate in the CDD 401(k) Plan, which is available on a voluntary basis and features a maximum 4.5% Company match, based upon a percentage of the employee’s contributions. The Company incurred expense of $21.0 and $18.2 for the Covance 401(k) plan during the three months ended September 30, 2020, and 2019, respectively, and $64.8 and $56.0 during the nine months ended September 30, 2020, and 2019, respectively.

The Company also maintains several other small 401(k) plans associated with companies acquired over the last several years.

Pension Plans

The Company has a defined-benefit retirement plan (Company Plan) and a nonqualified supplemental retirement plan (PEP). Both plans have been closed to new participants since December 31, 2009. Employees participating in the Company Plan and PEP no longer earn service-based credits, but continue to earn investment credits.

The Company Plan covers substantially all LCD employees employed prior to December 31, 2009. The benefits to be paid under the Company Plan are based on years of credited service through December 31, 2009, interest credits and average compensation. The Company's policy is to fund the Company Plan with at least the minimum amount required by applicable regulations.

22

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

The PEP covers a portion of the Company's senior management group. Prior to 2010, the PEP provided for the payment of the difference, if any, between the amount of any maximum limitation on annual benefit payments under the Employee Retirement Income Security Act of 1974 and the annual benefit that would be payable under the Company Plan but for such limitation. Effective January 1, 2010, employees participating in the PEP no longer earn service-based credits. The PEP is an unfunded plan.

The effect on operations for the Company Plan and the PEP is summarized as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Service cost for administrative expenses	$	1.3	$	1.1	$	3.9	$	3.1
Interest cost on benefit obligation	2.8		3.4		8.4		10.4
Expected return on plan assets	(3.7)		(3.7)		(11.2)		(11.3)
Net amortization and deferral	2.4		3.0		7.2		8.2
Defined benefit plan costs	$	2.8	$	3.8	$	8.3	$	10.4

The service cost component of net periodic pension cost and net periodic post-retirement benefit cost is included in operating expenses with other employee compensation costs. The other components of net benefit cost, including amortization or prior service cost/credit and settlement and curtailment effects are included in other, net non-operating expenses. During the nine months ended September 30, 2020, the Company made no contributions to the Company Plan. The related net pension obligation for the Company Plan and PEP was $92.6 and $93.4 as of September 30, 2020, and December 31, 2019, respectively.

As a result of the Covance acquisition, the Company sponsors two defined benefit pension plans for the benefit of its employees at two U.K. subsidiaries (U.K. Plans) and one defined benefit pension plan for the benefit of its employees at a German subsidiary (German Plan), all of which are legacy plans of previously acquired companies. The U.K. Plans were closed to future accrual as of December 31, 2019. Benefit amounts for all three plans are based upon years of service and compensation; however, the U.K. Plans were based on service and compensation through December 31, 2019. The German Plan is unfunded while the U.K. Plans are funded. The Company’s funding policy has been to contribute annually a fixed percentage of the eligible employee's salary, and additional amounts, at least equal to the local statutory funding requirements.

As a result of the Envigo acquisition, the Company assumed a defined benefit pension plan for the benefit of Envigo's U.K. employees (the Envigo Plan), which is a legacy plan of a company previously acquired by Envigo. The Envigo Plan is a funded plan that is closed to future accrual. The Company’s funding policy has been to contribute amounts at least equal to the local statutory funding requirements.

The related net pension obligation for these plans inclusive of the U.K. Plans, German Plan, and the Envigo Plan, was $85.4 and $99.1 as of September 30, 2020, and December 31, 2019, respectively.

12.     FAIR VALUE MEASUREMENTS

The Company’s population of financial assets and liabilities subject to fair value measurements as of September 30, 2020, and December 31, 2019, is as follows:

				Fair Value Measurements as of
		Fair Value as of		September 30, 2020
	Balance Sheet			Using Fair Value Hierarchy
	Classification	September 30, 2020		Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	15.4	$	—	$	15.4	$	—
Cross currency swaps	Other liabilities	8.8		—		8.8		—
Cash surrender value of life insurance policies	Other assets, net	82.9		—		82.9		—
Deferred compensation liability	Other liabilities	81.0		—		81.0		—
Contingent consideration	Other liabilities	9.0		—		—		9.0

23

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

				Fair Value Measurements as of
		Fair Value as of		December 31, 2019
	Balance Sheet			Using Fair Value Hierarchy
	Classification	December 31, 2019		Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	15.8	$	—	$	15.8	$	—
Cross currency swaps	Other assets, net	3.2		—		3.2		—
Interest rate swaps	Other assets, net	1.5		—		1.5		—
Cash surrender value of life insurance policies	Other assets, net	80.2		—		80.2		—
Deferred compensation liability	Other liabilities	76.7		—		76.7		—
Investment in equity securities	Other current assets	9.1		9.1		—		—
Contingent consideration	Other liabilities	9.9		—		—		9.9

Fair Value Measurement of Level 3 Liabilities	Contingent Consideration
Balance at December 31, 2019	$	9.9
Payments	(4.8)
Adjustments	(2.1)
Additions	6.0
Balance at September 30, 2020	$	9.0

The Company has a noncontrolling interest put related to its Ontario subsidiary that has been classified as mezzanine equity in the Company’s condensed consolidated balance sheets. The noncontrolling interest put is valued at its contractually determined value, which approximates fair value.

The Company offers certain employees the opportunity to participate in an employee-funded deferred compensation plan (DCP). A participant's deferrals are allocated by the participant to one or more of 16 measurement funds, which are indexed to externally managed funds. From time to time, to offset the cost of the growth in the participant's investment accounts, the Company purchases life insurance policies, with the Company named as beneficiary of the policies. Changes in the cash surrender value of the life insurance policies are based upon earnings and changes in the value of the underlying investments, which are typically invested in a similar manner to the participants' allocations. Changes in the fair value of the DCP obligation are derived using quoted prices in active markets based on the market price per unit multiplied by the number of units. The cash surrender value and the DCP obligations are classified within Level 2 because their inputs are derived principally from observable market data by correlation to the hypothetical investments.

Contingent acquisition consideration liabilities are measured at fair value using Level 3 valuations. These contingent consideration liabilities were recorded at fair value on the acquisition date and are remeasured quarterly based on the then assessed fair value and adjusted if necessary. The increases or decreases in the fair value of contingent consideration payable can result from changes in anticipated revenue levels and changes in assumed discount periods and rates. As the fair value measure is based on significant inputs that are not observable in the market, they are categorized as Level 3.

The carrying amounts of cash and cash equivalents, accounts receivable, income taxes receivable, and accounts payable are considered to be representative of their respective fair values due to their short-term nature. The fair market value of the Senior Notes, based on market pricing, was approximately $6,107.9 and $6,140.6 as of September 30, 2020, and December 31, 2019, respectively. The Company's note and debt instruments are classified as Level 2 instruments, as the fair market values of these instruments are determined using other observable inputs.

13.     DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

The Company addresses its exposure to market risks, principally the market risk associated with changes in interest rates and foreign currency exchange rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments. The Company does not hold or issue derivative financial instruments for trading purposes. The Company does not believe that its exposure to market risk is material to the Company’s financial position or results of operations.

Interest Rate Swap

On August 17, 2020, the Company redeemed its remaining $412.2 4.625% Senior Notes due November 15, 2020, using available cash on hand. The Company exited the remaining fixed-to-variable interest rate swap arrangement in August 2020, in connection with the redemption of the 4.625% Senior Notes due 2020.

24

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

	Carrying amount of hedged liabilities as of				Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liabilities as of
	September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
Balance Sheet Line Item in which Hedged Items are Included
Current portion, long term debt	$	—	$	301.5	$	—	$	1.5

Cross Currency Swap

During the fourth quarter of 2018, the Company entered into six U.S. Dollar to Swiss Franc cross-currency swap agreements with an aggregate notional value of $600.0 and which are accounted for as a hedge against the impact of foreign exchange movements on its net investment in a Swiss subsidiary. Of the notional value, $300.0 matures in 2022 and $300.0 matures in 2025. These cross currency swaps maturing in 2022 and 2025 are included in other long-term assets as of September 30, 2020. Changes in the fair value of the cross-currency swaps are recorded as a component of the foreign currency translation adjustment in accumulated other comprehensive income in the Condensed Consolidated Balance Sheet until the hedged item is recognized in earnings. The cumulative amount of the fair value hedging adjustment included in the current value of the cross currency swaps was $(23.1) and $(12.0) for the three and nine months ended September 30, 2020, respectively, and was recognized as currency translation within the Condensed Consolidated Statement of Comprehensive Earnings. There were no amounts reclassified from the Condensed Consolidated Statement of Comprehensive Earnings to the Condensed Consolidated Statement of Operations during the three months or nine months ended September 30, 2020.

The table below presents the fair value of derivatives on a gross basis and the balance sheet classification of those instruments:

		September 30, 2020						December 31, 2019
		Fair Value of Derivative						Fair Value of Derivative
	Balance Sheet Caption	Asset		Liability		U.S. Dollar Notional		Asset		Liability		U.S. Dollar Notional
Derivatives Designated as Hedging Instruments
Interest rate swap	Prepaid expenses and other/Other liabilities	$	—	$	—	$	—	$	1.5	$	—	$	300.0
Cross currency swaps	Other assets, net or Other liabilities	$	—	$	8.8	$	600.0	$	3.2	$	—	$	600.0

The table below provides information regarding the location and amount of pretax (gains) losses of derivatives designated in fair value hedging:

	Amount of pre-tax gain/(loss) included in other comprehensive income				Amounts reclassified to the Statement of Operations				Amount of pre-tax gain/(loss) included in other comprehensive income				Amounts reclassified to the Statement of Operations
	Three Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019		2020		2019		2020		2019
Interest rate swap contracts	$	—	$	0.4	$	1.6	$	—	$	0.8	$	7.2	$	1.6	$	—
Cross currency swaps	$	(23.1)	$	18.8	$	—	$	—	$	(12.0)	$	22.8	$	—	$	—

The Company recorded a gain of $1.6 on the extinguishment of the interest rate swap arrangement, which was included in Other, net on the Condensed Consolidated Statement of Operations. No additional gains or losses from derivative instruments have been recognized into income for the three and nine months ended September 30, 2020, and 2019.

25

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

14.     SUPPLEMENTAL CASH FLOW INFORMATION

	Nine Months Ended September 30,
	2020		2019
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	195.8	$	216.5
Income taxes, net of refunds	217.5		181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	—		1.7
Change in accrued property, plant and equipment	(24.5)		(15.9)
Floating rate secured note receivable due 2022	—		110.0

15.     BUSINESS SEGMENT INFORMATION

The following table is a summary of segment information for the three and nine months ended September 30, 2020, and 2019. The management approach has been used to present the following segment information. This approach is based upon the way the management of the Company organizes segments within an enterprise for making operating decisions and assessing performance. Financial information is reported on the basis that it is used internally by the chief operating decision maker (CODM) for evaluating segment performance and deciding how to allocate resources to segments. The Company’s chief executive officer has been identified as the CODM.

Segment asset information is not presented because it is not used by the CODM at the segment level. Operating earnings of each segment represents revenues less directly identifiable expenses to arrive at operating income for the segment. General management and administrative corporate expenses are included in general corporate expenses below.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Revenues:
LCD	$	2,704.2	$	1,759.2	$	6,098.8	$	5,242.1
CDD	1,241.9		1,175.4		3,479.4		3,376.4
Intercompany eliminations and other	(50.0)		(6.2)		(90.0)		(17.1)
Revenues	3,896.1		2,928.5		9,488.7		8,601.4
Operating earnings (loss):
LCD	964.9		262.2		1,451.5		843.0
CDD	142.0		123.8		(131.2)		277.6
General corporate expenses	(59.8)		(46.1)		(168.2)		(126.8)
Total operating income	1,047.1		339.9		1,152.2		993.8
Non-operating expenses, net	(100.0)		(52.5)		(175.7)		(181.8)
Earnings before income taxes	947.1		287.4		976.4		812.0
Provision for income taxes	243.4		66.4		358.0		214.4
Net earnings	703.7		221.0		618.4		597.6
Less: Net earnings attributable to the noncontrolling interest	(0.3)		(0.3)		(0.6)		(0.9)
Net earnings attributable to Laboratory Corporation of America Holdings	$	703.4	$	220.7	$	617.8	$	596.7

26

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD-LOOKING STATEMENTS

Laboratory Corporation of America® Holdings together with its subsidiaries (the Company) has made in this report, and from time to time may otherwise make in its public filings, press releases and discussions by Company management, forward-looking statements concerning the Company’s operations, performance and financial condition, as well as its strategic objectives. Some of these forward-looking statements relate to future events and expectations and can be identified by the use of forward-looking words such as “believes”, “expects”, “may”, “will”, “should”, “seeks”, “approximately”, “intends”, “plans”, “estimates”, or “anticipates” or the negative of those words or other comparable terminology. Such forward-looking statements speak only as of the time they are made and are subject to various risks and uncertainties. The Company claims the protection afforded by the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Actual results could differ materially from those currently anticipated due to a number of factors in addition to those discussed elsewhere herein, including in the "Risk Factors" section of the Annual Report on Form 10-K, and in the Company’s other public filings, press releases, and discussions with Company management, including:

1.     changes in government and third-party payer regulations, reimbursement, or coverage policies or other future reforms in the healthcare system (or in the interpretation of current regulations), new insurance or payment systems, including state, regional or private insurance cooperatives (e.g., health insurance exchanges) affecting governmental and third-party coverage or reimbursement for commercial laboratory testing, including the impact of the U.S. Protecting Access to Medicare Act of 2014 (PAMA);

2.    significant monetary damages, fines, penalties, assessments, refunds, repayments, damage to the Company’s reputation, unanticipated compliance expenditures, and/or exclusion or debarment from or ineligibility to participate in government programs, among other adverse consequences, arising from enforcement of anti-fraud and abuse laws and other laws applicable to the Company in jurisdictions in which the Company conducts business;

3.     significant fines, penalties, costs, unanticipated compliance expenditures and/or damage to the Company’s reputation arising from the failure to comply with applicable privacy and security laws and regulations, including the U.S. Health Insurance Portability and Accountability Act of 1996, the U.S. Health Information Technology for Economic and Clinical Health Act, the European Union's General Data Protection Regulation and similar laws and regulations in jurisdictions in which the Company conducts business;

4.    loss or suspension of a license or imposition of a fine or penalties under, or future changes in, or interpretations of applicable licensing laws or regulations regarding the operation of clinical laboratories and the delivery of clinical laboratory test results, including, but not limited to, the U.S. Clinical Laboratory Improvement Act of 1967 and the U.S. Clinical Laboratory Improvement Amendments of 1988 and similar laws and regulations in jurisdictions in which the Company conducts business;

5.     penalties or loss of license arising from the failure to comply with applicable occupational and workplace safety laws and regulations, including the U.S. Occupational Safety and Health Administration requirements and the U.S. Needlestick Safety and Prevention Act and similar laws and regulations in jurisdictions in which the Company conducts business;

6.    fines, unanticipated compliance expenditures, suspension of manufacturing, enforcement actions, damage to the Company’s reputation, injunctions, or criminal prosecution arising from failure to maintain compliance with current good manufacturing practice regulations and similar requirements of various regulatory agencies in jurisdictions in which the Company conducts business;

7.    sanctions or other remedies, including fines, unanticipated compliance expenditures, enforcement actions, injunctions or criminal prosecution arising from failure to comply with the Animal Welfare Act or applicable national, state and local laws and regulations in jurisdictions in which the Company conducts business;

8.    changes in testing guidelines or recommendations by government agencies, medical specialty societies and other authoritative bodies affecting the utilization of laboratory tests;

9.    changes in applicable government regulations or policies affecting the approval, availability of, and the selling and marketing of diagnostic tests, drug development, or the conduct of drug development and medical device and diagnostic studies and trials, including regulations and policies of the U.S. Food and Drug Administration, the U.S. Department of Agriculture, the Medicine and Healthcare products Regulatory Agency in the United Kingdom (U.K.), the National Medical Products Administration in China, the Pharmaceutical and Medical Devices Agency in Japan, the

27

European Medicines Agency and similar regulations and policies of agencies in other jurisdictions in which the Company conducts business;

10.    changes in government regulations or reimbursement pertaining to the biopharmaceutical and medical device and diagnostic industries, changes in reimbursement of biopharmaceutical products or reduced spending on research and development by biopharmaceutical customers;

11.    liabilities that result from the failure to comply with corporate governance requirements;

12.     increased competition, including price competition, potential reduction in rates in response to price transparency and consumerism, competitive bidding and/or changes or reductions to fee schedules and competition from companies that do not comply with existing laws or regulations or otherwise disregard compliance standards in the industry;

13.     changes in payer mix or payment structure, including insurance carrier participation in health insurance exchanges, an increase in capitated reimbursement mechanisms, the impact of a shift to consumer-driven health plans or plans carrying an increased level of member cost-sharing, and adverse changes in payer reimbursement or payer coverage policies (implemented directly or through a third-party utilization management organization) related to specific diagnostic tests, categories of testing or testing methodologies;

14. failure to retain or attract managed care organization (MCO) business as a result of changes in business models, including new risk-based or network approaches, out-sourced laboratory network management or utilization management companies, or other changes in strategy or business models by MCOs;

15.     failure to obtain and retain new customers, an unfavorable change in the mix of testing services ordered, or a reduction in tests ordered, specimens submitted or services requested by existing customers, and delays in payment from customers;

16.     difficulty in maintaining relationships with customers or retaining key employees as a result of uncertainty surrounding the integration of acquisitions and the resulting negative effects on the business of the Company;

17.    consolidation and convergence of MCOs, biopharmaceutical companies, health systems, large physician organizations and other customers, potentially causing material shifts in insourcing, utilization, pricing and reimbursement, including full and partial risk-based models;

18.    failure to effectively develop and deploy new systems, system modifications or enhancements required in response to evolving market and business needs;

19.    customers choosing to insource services that are or could be purchased from the Company;

20.     failure to identify, successfully close, and effectively integrate and/or manage acquisitions of new businesses;

21.    inability to achieve the expected benefits and synergies of newly-acquired businesses, including due to items not discovered in the due-diligence process, and the impact on the Company's cash position, levels of indebtedness and stock price;

22.    termination, loss, delay, reduction in scope or increased costs of contracts, including large contracts and multiple contracts;

23.    liability arising from errors or omissions in the performance of testing services, contract research services, or other contractual arrangements;

24.    changes or disruption in the provision or transportation of services or supplies provided by third parties; or their termination for failure to follow the Company's performance standards and requirements;

25.     damage or disruption to the Company's facilities;

26.     damage to the Company's reputation, loss of business, or other harm from acts of animal rights activists or potential harm and/or liability arising from animal research activities;        

27.    adverse results in litigation matters;

28.     inability to attract and retain experienced and qualified personnel or the loss of significant personnel as a result of illness or otherwise;

29.    failure to develop or acquire licenses for new or improved technologies, such as point-of-care testing, mobile health technologies, and digital pathology, or potential use of new technologies by customers and/or consumers to perform their own tests;

28

30.    substantial costs arising from the inability to commercialize newly licensed tests or technologies or to obtain appropriate coverage or reimbursement for such tests;

31.    failure to obtain, maintain and enforce intellectual property rights for protection of the Company's products and services and defend against challenges to those rights;

32.    scope, validity and enforceability of patents and other proprietary rights held by third parties that may impact the Company's ability to develop, perform, or market the Company's products or services or operate its business;

33.    business interruption, receivable impairment, delays in cash collection impacting days sales outstanding, supply chain disruptions, increases in operating costs, or other impacts on the business due to natural disasters, including adverse weather, fires and earthquakes, political crises, including terrorism and war, public health crises and disease epidemics and pandemics, and other events outside of the Company's control;

34.    discontinuation or recalls of existing testing products;

35.    a failure in the Company's information technology systems, including with respect to testing turnaround time and billing processes, or the failure of the Company or its third-party suppliers and vendors to maintain the security of business information or systems or to protect against cybersecurity attacks such as denial of service attacks, malware, ransomware and computer viruses, or delays or failures in the development and implementation of the Company’s automation platforms, any of which could result in a negative effect on the Company’s performance of services, a loss of business or increased costs, damages to the Company’s reputation, significant litigation exposure, an inability to meet required financial reporting deadlines, or the failure to meet future regulatory or customer information technology, data security and connectivity requirements;

36.    business interruption, increased costs, and other adverse effects on the Company's operations due to the unionization of employees, union strikes, work stoppages, general labor unrest or failure to comply with labor or employment laws;

37.     failure to maintain the Company's days sales outstanding levels, cash collections (in light of increasing levels of patient responsibility), profitability and/or reimbursement arising from unfavorable changes in third-party payer policies, payment delays introduced by third party utilization management organizations and increasing levels of patient payment responsibility;

38.    impact on the Company's revenues, cash collections and the availability of credit for general liquidity or other financing needs arising from a significant deterioration in the economy or financial markets or in the Company's credit ratings by Standard & Poor's and/or Moody's;     

39.    failure to maintain the expected capital structure for the Company, including failure to maintain the Company's investment grade rating, or leverage ratio covenants under its term loan facility and revolving credit facility;

40.    changes in reimbursement by foreign governments and foreign currency fluctuations;

41.     inability to obtain certain billing information from physicians, resulting in increased costs and complexity, a temporary disruption in receipts and ongoing reductions in reimbursements and revenues;

42.    expenses and risks associated with international operations, including, but not limited to, compliance with the U.S. Foreign Corrupt Practices Act, the U.K. Bribery Act, other applicable anti-corruption laws and regulations, trade sanction laws and regulations, and economic, political, legal and other operational risks associated with foreign jurisdictions;

43.    failure to achieve expected efficiencies and savings in connection with the Company's business process improvement initiatives;

44.    changes in tax laws and regulations or changes in their interpretation, including the U.S. Tax Cuts and Jobs Act (TCJA);

45.    global economic conditions and government and regulatory changes, including, but not limited to the U.K.'s exit from the European Union; and

46.     effects, duration, and severity of the ongoing COVID-19 pandemic, including the impact on operations, personnel, liquidity, and collections, and the actions the Company, or governments, have taken or may take in response, and damage to the Company's reputation or loss of business resulting from the perception of the Company's response to the COVID-19 pandemic, including the availability and accuracy and timeliness of delivery of any tests that the Company develops, collaborates on or provides for the detection of COVID-19.

29

     Except as may be required by applicable law, the Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Given these uncertainties, one should not put undue reliance on any forward-looking statements.

GENERAL (dollars in millions, except per share data)

Revenues for the nine months ended September 30, 2020, were $9,488.7, an increase of 10.3% from $8,601.4 during the nine months ended September 30, 2019. The increase in revenues was due to organic growth of 8.3%, acquisitions of 2.1%, and favorable foreign currency translation 0.1%, partially offset by the disposition of a business of 0.2%. The 8.3% increase in organic revenue includes the 16.4% contribution from COVID-19 Testing, partially offset by the 8.1% reduction in the Company's organic Base Business due to the pandemic. Base Business includes the Company's business operations except for PCR and antibody COVID-19 testing (COVID-19 Testing). The decline in the organic Base Business includes the negative impact of PAMA of 0.6%.

In March 2020, COVID-19 was declared a pandemic. COVID-19 has had and continues to have an extensive impact on the global health and economic environments. Given the continued unpredictability of the COVID-19 pandemic and the corresponding government restrictions and customer behavior, there are a wide-range of feasible financial results for 2020. Throughout the year, the Company's COVID-19 Testing has helped to offset the pressure experienced in the Base Business. To date, the Company has performed more than 18 million PCR and 3.0 million antibody COVID-19 tests and has a current capacity of 210,000 PCR and 300,000 antibody tests per day. The Company continues to increase capacity across multiple platforms for its COVID-19 Testing subject to the availability of equipment and testing supplies and key personnel.

During the nine months ended September 30, 2020, the Company recorded goodwill and other asset impairment charges of $437.4, as a result of the negative financial impact of COVID-19 during the first quarter of 2020. See Note 6 Goodwill and Intangible Assets for a discussion of goodwill and intangible asset impairment and Note 2 Revenues for a discussion of credit losses and additional price concessions. The Company also impaired certain of the Company's investments by a total of $25.4 during the nine months ended September 30, 2020, due to the impact of COVID-19; $7.1 was included in Equity method earnings (loss), net during the three months ended March 31, 2020, and $13.1 and $5.2 were included in Other, net during the three months ended March 31, 2020, and June 30, 2020, respectively.

In April 2020, the Company received cash payments of approximately $55.9 from the Public Health and Social Services Emergency Fund for provider relief that was appropriated by Congress to the Department of Health and Human Services (HHS) in the Coronavirus Aid, Relief, and Economic Security Act (CARES Act Provider Relief Funds). Upon receiving and satisfying the terms and conditions associated with the distributed funds, the Company accounted for the transaction by applying the guidance in ASC 450-30 Gain Contingencies, and recorded these funds in Other, net non-operating income in the Consolidated Statement of Operations as of June 30, 2020. In August 2020, the Company received an additional $76.2 in CARES Act Provider Relief Funds. As the Company's Diagnostic business demonstrated recovery and demand for COVID-19 testing increased, the Company determined that the negative financial impact of COVID-19 which the CARES Act Provider Relief Funds were designed to address no longer applied to the Company. As a result, the Company derecognized the income associated with the $55.9 received during the second quarter as a change in estimate and did not recognize any income related to the cash payment of $76.2 received in the third quarter. The Company plans to return the CARES Act Provider Relief Funds to the government in the fourth quarter of 2020 and has recorded a liability of $132.1 in Accrued expenses and other as of September 30, 2020.

There remains significant uncertainty regarding the duration and severity of the pandemic and its impact on the Company’s business, results of operations and financial position for the balance of 2020 and beyond. For more information regarding the risks associated with COVID-19 and its impact on the Company’s business, see Risk Factors in Part II - Item 1A.

RESULTS OF OPERATIONS (dollars in millions)

Three months ended September 30, 2020, compared with three months ended September 30, 2019

Revenues

	Three Months Ended September 30,
	2020		2019		Change
LCD	$	2,704.2	$	1,759.2	53.7	%
CDD	1,241.9		1,175.4		5.7	%
Intercompany eliminations and other	(50.0)		(6.2)		705.1	%
Total	$	3,896.1	$	2,928.5	33.0	%

30

The increase in revenues for the three months ended September 30, 2020, as compared with the corresponding period in 2019 was 33.0%. The increase in revenue was due to organic growth of 31.5%, acquisitions of 1.0%, and favorable foreign currency translation of 0.5%. The 31.5% increase in organic revenue includes the 32.6% contribution from COVID-19 Testing, partially offset by the 1.1% reduction in the Company's organic Base Business due to the pandemic. The decline in organic Base Business includes the lower Medicare and Medicaid pricing as a result of PAMA of 0.7%.

LCD revenues for the quarter were $2,704.2, an increase of 53.7% compared to revenues of $1,759.2 in the third quarter of 2019. The increase in revenues was primarily due to organic growth of 52.3% and acquisitions of 1.4%. The 52.3% increase in organic revenue was due to a 54.2% contribution from COVID-19 Testing, partially offset by a 1.9% decline in the organic Base Business, which includes the negative impact from PAMA of 1.1%.

Total volume, measured by requisitions, increased by 21.8% as organic volume increased by 20.0% and acquisition volume contributed 1.8%. The organic volume growth includes increased demand for COVID-19 Testing of 28.8%, partially offset by an 8.9% reduction of organic Base Business due to the pandemic. Price/mix increased by 31.9% due to COVID-19 Testing of 25.4% and organic Base Business of 7.0%, which includes the negative impact from PAMA of 1.1%.

CDD revenues for the third quarter were $1,241.9, an increase of 5.7% over revenues of $1,175.4 in the third quarter of 2019. The increase in revenues was primarily due to organic growth of 3.8%, acquisitions of 0.5%, and favorable foreign currency translation of 1.4%. The increase in organic revenue was due to COVID-19 testing through its Central Laboratories business. Excluding COVID-19 Testing, organic revenue was flat compared to the third quarter of 2019. The pandemic continues to cause delays in clinical trial progression and associated testing, reductions in investigator site access, as well as interruptions to the supply chain particularly impacting the nonclinical business unit.

Cost of Revenues

	Three Months Ended September 30,
	2020			2019			Change
Cost of revenues	$	2,336.7		$	2,111.2		10.7	%
Cost of revenues as a % of revenues	60.0		%	72.1		%

Cost of revenues decreased 10.7% during the three months ended September 30, 2020, as compared with the corresponding period in 2019. Cost of revenues as a percentage of revenues during the three months ended September 30, 2020, decreased to 60.0% as compared to 72.1% in the corresponding period in 2019. This decrease was primarily due to the impact of COVID-19 testing and LaunchPad savings, partially offset by the reduction in Base Business as a result of the pandemic and PAMA and higher personnel costs primarily driven by merit increases.

Selling, General and Administrative Expenses

	Three Months Ended September 30,
	2020			2019			Change
Selling, general and administrative expenses	$	419.5		$	401.5		4.5	%
Selling, general and administrative expenses as a % of revenues	10.8		%	13.7		%

During the three months ended September 30, 2020, the Company incurred $2.4 of acquisition and divestiture related costs, $1.9 in COVID-related costs and $1.8 in management transition costs. In addition, the Company recorded $0.2 of non-capitalized costs associated with the implementation of a major system as part of its LaunchPad business process improvement initiative and $0.7 related to miscellaneous other items. These items increased selling, general and administrative expenses by $7.0. 

During the three months ended September 30, 2019, the Company incurred $9.6 in acquisition and divestiture costs, $5.3 in management transition costs and $11.3 in costs related to the AMCA data breach. In addition, the Company recorded $2.4 of non-capitalized costs associated with the implementation of a major system as part of its LaunchPad business process improvement initiative and reversed $13.9 related to the settlement of a contingent purchase price related to a 2016 acquisition. These items increased selling, general and administrative expenses by $14.7.

Excluding these charges, selling, general and administrative expenses as a percentage of revenues were 10.6% and 13.2% during the three months ended September 30, 2020, and 2019, respectively, primarily due to leveraging the Company's infrastructure on higher revenue, partially offset by a $15.0 initial contribution to establish the LabCorp Charitable Foundation which supports the Company's strategic mission to improve health and improve lives with contributions focused on health and welfare, education and community.

31

Goodwill and Other Asset Impairments

	Three Months Ended September 30,
	2020		2019		Change
Goodwill and other asset impairments	$	23.5	$	—	N/A

During the three months ended September 30, 2020, the Company recorded goodwill and other asset impairment charges of $10.1 and $17.7 for customer relationships and technology intangible assets, respectively, due to the loss of a contract from a CDD prior acquisition. The Company reversed the $5.0 charge for the estimated loss related to the CDD floating rate secured note receivable due 2022 from Envigo. The Company also recorded an impairment for a note receivable related to an LCD investment of $0.7 during the three months ended September 30, 2020.

Amortization of Intangibles and Other Assets

	Three Months Ended September 30,
	2020		2019		Change
LCD	$	25.9	$	24.9	3.8	%
CDD	36.3		36.8		(1.2)	%
Total amortization of intangibles and other assets	$	62.2	$	61.7	0.8	%

The increase in amortization of intangibles and other assets primarily reflects the impact of acquisitions occurring after September 30, 2019, partially offset by the of impairment of intangible assets in fiscal 2020.

Restructuring and Other Special Charges

	Three Months Ended September 30,
	2020		2019		Change
Restructuring and other charges	$	7.1	$	14.2	(49.8)	%

During the three months ended September 30, 2020, the Company recorded net restructuring and other charges of $7.1: $1.6 within LCD and $5.5 within CDD. The charges were comprised of $2.3 related to severance and other personnel costs, $3.0 for a CDD lab facility and equipment impairment, and $4.0 in facility closures, impairment of operating lease right-of use assets and general integration activities. The charges were offset by the reversal of previously established liability of $0.1 and $2.1 in unused severance costs and facility-related costs, respectively.

During the three months ended September 30, 2019, the Company recorded net restructuring and other special charges of $14.2: $6.7 within LCD and $7.5 within CDD. The charges were comprised of $5.9 related to severance and other personnel costs along with $8.5 in costs associated with facility closures, impairment of operating lease right-of-use assets and general integration initiatives. The charges were offset by the reversal of previously established reserves of $0.2 in unused facility reserves.

Interest Expense

	Three Months Ended September 30,
	2020		2019		Change
Interest expense	$	(51.4)	$	(60.5)	(15.0)	%

The decrease in interest expense for the three months ended September 30, 2020, as compared with the corresponding period in 2019, is primarily due to a lower outstanding balance on term loans, lower variable interest rates, the repayment of the 2.625% senior notes and the 4.625% senior notes, partially offset by the issuance of $1,050.0 in debt securities in November 2019.

Equity Method Income

	Three Months Ended September 30,
	2020		2019		Change
Equity method income, net	$	3.0	$	2.4	26.0	%

 Equity method income represents the Company's ownership share in joint venture partnerships along with equity investments in other companies in the health care industry. All of these partnerships and investments reside within LCD. The increase in income for the three months ended September 30, 2020, as compared with the corresponding period in 2019, was primarily due to increased profitability of the Company's joint ventures.

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Other, net

	Three Months Ended September 30,
	2020		2019		Change
Other, net	$	(54.2)	$	2.7	(2,096.1)	%

 The change in other, net for the three months ended September 30, 2020, as compared to the three months ended September 30, 2019, is primarily due to the derecognition of the income associated with the $55.9 from the CARES Act Provider Relief Funds received during the second quarter as the Company plans to return the funding. The Company recorded investment gains of $4.6, including a gain of $1.6 on the extinguishment of the interest rate swap arrangement. In addition, foreign currency transaction losses of $1.9 were recognized for the three months ended September 30, 2020, and losses of $2.9 were recognized in the corresponding period of 2019.

Income Tax Expense

	Three Months Ended September 30,
	2020			2019			Change
Income tax expense	$	243.4		$	66.4		266.9	%
Income tax expense as a % of earnings before income taxes	25.7		%	23.1		%

The 2020 tax rate was unfavorable to the 2019 tax rate due to the higher mix of earnings in the United States and the favorable impact of a reduction in tax rates in foreign jurisdictions in 2019.

Operating Income by Segment

	Three Months Ended September 30,
	2020			2019			Change
LCD operating income	$	964.6		$	262.2		267.8	%
LCD operating margin	35.7		%	14.9		%	20.8	%
CDD operating income	142.0			123.8			14.7	%
CDD operating margin	11.4		%	10.5		%	0.9	%
General corporate expenses	(59.8)			(46.2)			29.3	%
Total operating income	$	1,047.1		$	339.9		208.1	%

LCD operating income was $964.6 for the three months ended September 30, 2020, an increase of 267.8% over operating income of $262.2 in the corresponding period of 2019, and LCD operating margin increased 20.8% basis points year-over-year. The increase was primarily due to the increase in COVID-19 Testing and LaunchPad savings, partially offset by the negative impact of PAMA of $20.0. The Company remains on track to deliver approximately $200.0 of net savings from its three-year LCD LaunchPad initiative by the end of 2021.

CDD operating income was $142.0 for the three months ended September 30, 2020, an increase over operating income of $123.8 in the corresponding period of 2019. The increase was primarily due to COVID Testing and LaunchPad savings, partially offset by higher personnel costs. The Company remains on track to deliver approximately $150.0 of net savings from its three-year CDD LaunchPad initiative by the end of 2020.

General corporate expenses are comprised primarily of administrative services such as executive management, human resources, legal, finance, corporate affairs, and information technology. Corporate expenses were 59.8 for the three months ended September 30, 2020, an increase of 29.3% over corporate expenses of 46.2 in the corresponding period of 2019. The increase in corporate expenses in 2020 was primarily due to the funding of the LabCorp Charitable Foundation.

Nine months ended September 30, 2020, compared with nine months ended September 30, 2019

Revenues

	Nine Months Ended September 30,
	2020		2019		Change
LCD	$	6,098.8	$	5,242.1	16.3	%
CDD	3,479.4		3,376.4		3.0	%
Intercompany eliminations and other	(90.0)		(17.1)		425.0	%
Total	$	9,488.7	$	8,601.4	10.3	%

Revenues for the nine months ended September 30, 2020, were $9,488.7, an increase of 10.3% from $8,601.4 during the nine months ended September 30, 2019. The increase in revenues was due to organic growth of 8.3%, acquisitions of 2.1%, and favorable foreign currency translation of 0.1%, partially offset by the disposition of a business of 0.2%. The 8.3% increase in organic revenue includes the 16.4% contribution from COVID-19 Testing, partially offset by the 8.3% reduction in the

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Company's organic Base Business due to the pandemic. The decline in the organic Base Business includes the negative impact from PAMA of 0.6%.

LCD revenues for the nine months ended September 30, 2020, were $6,098.8, an increase of 16.3% compared to revenues of $5,242.1 for the nine months ended September 30, 2019. The increase in revenue was due to organic growth of 14.9% and acquisitions of 1.4%. The 14.9% increase in organic revenue, was due to a 26.9% contribution from COVID-19 Testing, partially offset by a 12.0% decline of the organic Base Business due to the pandemic. The 12.0% decline of organic Base Business includes a 1.0% negative impact from PAMA and a 1.0% reduction due to the September 2019 nonrenewal of the BeaconLBS - UnitedHealthcare contract pertaining to the Florida market.

Total volume, measured by requisition, decreased by 0.7% as organic volume decreased by 2.3% and acquisition volume contributed grwoth of 1.6%. The organic volume decline includes increased demand for COVID-19 Testing of 14.7%, more than offset by a 17.0% reduction of organic Base Business due to the pandemic. Price/mix increased by 17.2% due to COVID-19 Testing of 12.3% and Base Business of 4.8%. The Base Business price includes the negative impact from PAMA of 1.0% and the non-renewal of the BeaconLBS contract of 1.0%.

CDD revenues for nine months ended September 30, 2020, were $3,479.4, an increase of 3.0% over revenues of $3,376.4 for the nine months ended September 30, 2019. The increase in revenue was primarily due to the benefit of acquisitions of 3.2%, favorable foreign currency translation of 0.4% and organic growth of 0.1%, partially offset by the disposition of a business of 0.6%. The increase in organic revenue was primarily driven by COVID-19 PCR testing through its Central Laboratories, partially offset by the negative impact from the pandemic. The pandemic continues to cause delays in clinical trial progression and associated testing, reductions in investigator site access, as well as interruptions to the supply chain particularly impacting the nonclinical business unit.

Cost of Revenues

	Nine Months Ended September 30,
	2020			2019			Change
Cost of revenues	$	6,440.8		$	6,169.6		4.4	%
Cost of revenues as a % of revenues	67.9		%	71.7		%

Cost of revenues increased 4.4% during the nine months ended September 30, 2020, as compared with the corresponding period in 2019. Cost of revenues as a percentage of revenues during the nine months ended September 30, 2020, decreased to 67.9% as compared to 71.7% in the corresponding period in 2019. This decrease was primarily due to the impact of COVID-19, higher personnel costs (primarily driven by merit increases and one additional payroll day that predominantly impacted LCD), and PAMA, partially offset by LaunchPad savings.

Selling, General and Administrative Expenses

	Nine Months Ended September 30,
	2020			2019			Change
Selling, general and administrative expenses	$	1,211.3		$	1,210.6		0.1	%
Selling, general and administrative expenses as a % of revenues	12.8		%	14.3		%

During the nine months ended September 30, 2020, the Company incurred $15.3 of acquisition and divestiture related costs, $5.8 in COVID-related costs and $12.4 in management transition costs. In addition, the Company recorded $1.3 of non-capitalized costs associated with the implementation of a major system as part of its LaunchPad business process improvement initiative and $1.7 related to miscellaneous other items. These charges were offset by insurance proceeds of $10.0 related to the 2018 ransomware attack. These items increased selling, general and administrative expenses by $26.5. 

During the nine months ended September 30, 2019, the Company incurred $53.9 in acquisition and divestiture costs, $8.2 in consulting expenses relating to fees incurred as part of its integration and management transition costs, $0.7 in costs related to the 2018 ransomware attack and $11.3 in costs related to the AMCA data breach. In addition, the Company recorded $7.4 of non-capitalized costs associated with the implementation of a major system as part of its LaunchPad business process improvement initiative and reversed $13.9 related to the settlement of a contingent purchase price related to a 2016 acquisition. These items increased selling, general and administrative expenses by $67.6.

Excluding these charges, selling, general and administrative expenses as a percentage of revenues were 12.5% and 13.3% during the nine months ended September 30, 2020, and 2019, respectively, primarily due to leveraging the Company's infrastructure on higher revenue, partially offset by a $15.0 initial contribution to establish the LabCorp Charitable Foundation which supports the Company's strategic mission to improve health and improve lives with contributions focused on health and welfare, education and community.

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Amortization of Intangibles and Other Assets

	Nine Months Ended September 30,
	2020		2019		Change
LCD	$	77.3	$	75.3	2.7	%
CDD	107.3		103.7		3.5	%
Total amortization of intangibles and other assets	$	184.6	$	179.0	3.1	%

The increase in amortization of intangibles and other assets within both segments primarily reflects the impact of acquisitions occurring after September 30, 2019, partially offset by impairment of intangible assets recorded in fiscal 2020.

Goodwill and Other Asset Impairments

	Nine Months Ended September 30,
	2020		2019		Change
Goodwill and other asset impairments	$	460.9	$	—	N/A

During the nine months ended September 30, 2020, the Company recorded goodwill and other asset impairment charges of $460.9, $449.3 within CDD and $11.6 within LCD, representing 3.9% of the Company's total goodwill and intangible assets. The Company concluded that the fair value was less than carrying value for two of its reporting units and recorded goodwill impairment of $418.7 in the CDD segment and $3.7 in the LCD segment during the three months ended March 31, 2020. The Company recorded non-cash charges of $31.2 for the impairment of identifiable intangible assets during the nine months ended September 30, 2020, $30.5 within CDD and $0.7 within LCD. During the three months ended March 31, 2020, $2.7 and $7.3 impairment charges were recorded for tradename and software, respectively. During the three months ended September 30, 2020, additional impairment charges of $10.1 and $17.7 for customer relationships and technology intangible assets, respectively were recorded due to the loss of a contract from a prior acquisition. The Company also recorded an impairment for a note receivable related to an investment of $0.7 during the three months ended September 30, 2020.

Restructuring and Other Special Charges

	Nine Months Ended September 30,
	2020		2019		Change
Restructuring and other charges	$	38.9	$	48.4	(19.6)	%

During the nine months ended September 30, 2020, the Company recorded net restructuring and other charges of $38.9: $13.4 within LCD and $25.5 within CDD. The charges were comprised of $12.8 related to severance and other personnel costs, $11.0 for a CDD lab facility impairment, and $24.0 in facility closures, impairment of operating lease right-of use assets and general integration activities. The charges were offset by the reversal of previously established liability of $1.1 and $7.8 in unused severance costs and facility-related costs, respectively.

During the nine months ended September 30, 2019, the Company recorded net restructuring and other special charges of $48.4: $22.8 within LCD and $25.6 within CDD. The charges were comprised of $26.2 related to severance and other personnel costs along with $22.0 in costs associated with facility closures, impairment of operating lease right-of-use assets and general integration initiatives. The charges were increased by the adjustment of previously established reserves of $0.4 in facility reserves and decreased by a reversal of $0.2 in unused facility reserves.

Interest Expense

	Nine Months Ended September 30,
	2020		2019	Change
Interest expense	$	(159.1)	(176.3)	(9.8)	%

The decrease in interest expense for the nine months ended September 30, 2020, as compared with the corresponding period in 2019, is primarily due to a lower outstanding balance on term loans, lower variable interest rates, the repayment of the 2.625% senior notes and the 4.625% senior notes, partially offset by the issuance of $1,050.0 in debt securities in November 2019.

Equity Method Income

	Nine Months Ended September 30,
	2020		2019		Change
Equity method income, net	$	(1.8)	$	7.9	(123.0)	%

 Equity method income represents the Company's ownership share in joint venture partnerships along with equity investments in other companies in the health care industry. All of these partnerships and investments reside within LCD. The decrease in income for the nine months ended September 30, 2020, as compared with the corresponding period in 2019, was primarily due to the impairment of an equity method investment and decreased profitability of the Company's joint ventures.

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Other, net

	Nine Months Ended September 30,
	2020		2019		Change
Other, net	$	(22.6)	$	(18.2)	24.1	%

The change in Other, net for the nine months ended September 30, 2020, as compared to the nine months ended September 30, 2019, was primarily due to an increase in the write-off or write down of certain of the Company's investments due to the negative impact of the COVID-19 global pandemic offset by lower foreign currency transaction losses. Foreign currency transaction losses of $6.4 were recognized for the nine months ended September 30, 2020, and losses of $10.7 were recognized in the corresponding period of 2019.

Income Tax Expense

	Nine Months Ended September 30,
	2020			2019			Change
Income tax expense	$	358.0		$	214.4		67.0	%
Income tax expense as a % of earnings before income taxes	36.7		%	26.4		%

The 2020 tax rate was unfavorable to the 2019 tax rate due to impairment charges which were not deductible and or generated tax assets which require a valuation allowance.

Operating Income by Segment

	Nine Months Ended September 30,
	2020			2019			Change
LCD operating income	$	1,451.5		$	843.0		72.2	%
LCD operating margin	23.8		%	16.1		%	7.7	%
CDD operating income	(131.2)			277.6			(147.3)	%
CDD operating margin	(3.8)		%	8.2		%	(12.0)	%
General corporate expenses	(168.2)			(126.8)			32.6	%
Total operating income	$	1,152.2		$	993.8		15.9	%

LCD operating income was $1,451.5 for the nine months ended September 30, 2020, an increase of 72.2% over operating income of $843.0 in the corresponding period of 2019, and LCD operating margin increased 7.7% basis points year-over-year. The increase in operating income and margin were primarily due to the increase in COVID-19 Testing and LaunchPad savings, partially offset by a reduction in Base Business (primarily due to the pandemic) and higher personnel costs. The Company remains on track to deliver approximately $200.0 of net savings from its three-year, phase II of LCD LaunchPad initiative by the end of 2021.

CDD operating loss was $131.2 for the nine months ended September 30, 2020, a decrease over operating income of $277.6 in the corresponding period of 2019 and CDD operating margin decreased 12.0% basis points year-over-year. The decrease in operating income and margin was primarily due to the negative impact of COVID-19, specifically goodwill and other asset impairments of $449.3, and higher personnel costs, partially offset by organic demand, acquisitions, and LaunchPad savings. The Company is on track to deliver $150.0 of net savings from its three-year CDD LaunchPad initiative by the end of 2020.

General corporate expenses are comprised primarily of administrative services such as executive management, human resources, legal, finance, corporate affairs, and information technology. Corporate expenses were $168.2 for the nine months ended September 30, 2020, an increase of 32.6% over corporate expenses of $126.8 in the corresponding period of 2019. The increase in corporate expenses in 2020 was primarily due to higher personnel costs, including executive transition costs, COVID-19 related expenses and the funding of the LabCorp Charitable Foundation.

LIQUIDITY AND CAPITAL RESOURCES (dollars and shares in millions)

The Company's strong cash-generating ability and financial condition typically have provided ready access to capital markets. The Company's principal source of liquidity is operating cash flow, supplemented by proceeds from debt offerings. The Company's senior unsecured revolving credit facility is further discussed in Note 7 Debt to the Company's Condensed Consolidated Financial Statements.

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In summary, the Company's cash flows were as follows for the nine months ended September 30, 2020, and 2019, respectively:

	Nine Months Ended September 30,
	2020		2019
Net cash provided by operating activities	$	1,360.7	$	874.9
Net cash used for investing activities	(515.2)		(1,131.0)
Net cash provided by (used for) financing activities	(516.4)		196.7
Effect of exchange rate changes on cash and cash equivalents	0.6		(6.3)
Net increase (decrease) in cash and cash equivalents	$	329.7	$	(65.7)

Cash and Cash Equivalents

Cash and cash equivalents at September 30, 2020, and 2019, totaled $667.2 and $361.1, respectively. Cash and cash equivalents consist of highly liquid instruments, such as time deposits, commercial paper, and other money market investments, substantially all of which have original maturities of three months or less.

Operating Activities 

During the nine months ended September 30, 2020, the Company's operations provided $1,360.7 of cash as compared to $874.9 during the same period in 2019. The $485.8 increase in cash provided from operations in 2020 as compared with the corresponding 2019 period is primarily due to higher cash earnings partially offset by higher working capital. For the first nine months of 2020, operating cash flow benefited from income and payroll tax deferrals, but was negatively impacted by the increase in COVID-19 Testing related supplies and accounts receivable. In addition, operating cash flow included $132.1 in CARES Act Provider Relief Funds, which the Company plans to return in the fourth quarter of 2020. Based on current expectations of the impact of COVID-19, the Company expects to continue to generate positive cash flows from operating activities, however, should the COVID-19 impact worsen or last longer than anticipated, the Company may see a significant decline in cash flows from operating activities. For more information regarding the risks associated with the COVID-19 and its impact on the Company's business, see Risk Factors in Part II - Item IA.

Investing Activities

Net cash used for investing activities for the nine months ended September 30, 2020, was $515.2 as compared to net cash used for investing activities of $1,131.0 for the nine months ended September 30, 2019. The change in cash used for investing activities was primarily due to a decrease in business acquisitions during the nine months ended September 30, 2020. Capital expenditures were $282.3 and $272.0 for the nine months ended September 30, 2020, and 2019, respectively.

Financing Activities

Net cash used for financing activities for the nine months ended September 30, 2020, was $516.4 compared to net cash provided by financing activities of $196.7 for the nine months ended September 30, 2019. The change in cash flows from financing activities for the nine months ended September 30, 2020, as compared to the nine months ended September 30, 2019, were primarily due to net financing proceeds from the term loan and revolving credit facilities in 2019 of $600.0, compared to the redemption of $412.2 in senior notes in 2020 offset by a $300.0 reduction in share repurchases.

The Company's revolving credit facility consists of a five-year revolving facility in the principal amount of up to $1,000.0, with the option of increasing the facility by up to an additional $350.0, subject to the agreement of one or more new or existing lenders to provide such additional amounts and certain other customary conditions.

Under the Company's term loan credit facility and the revolving credit facility, the Company is subject to negative covenants limiting subsidiary indebtedness and certain other covenants typical for investment grade-rated borrowers and the Company is required to maintain certain leverage ratios. The Company was in compliance with all covenants under the term loan credit facility and the revolving credit facility at September 30, 2020, and expects that it will remain in compliance with its existing debt covenants for the next twelve months.

On August 17, 2020, the Company redeemed the remaining $412.2 of its 4.625% Senior Notes due November 15, 2020, using available cash on hand and borrowings under its revolving credit facility.

At September 30, 2020, the Company had $667.2 of cash and $997.0 of available borrowings under its revolving credit facility, which does not mature until 2022. In May 2020, in order to obtain increased financial covenant flexibility, the Company and its lenders entered into amendments to the term loan facility and the revolving credit facility to increase the maximum leverage ratio to 5.0x debt to last twelve months EBITDA for the three month periods ending June 30, September 30 and December 31, 2020, and 4.5x for period ended March 31, 2021. From and including the period ending June 30, 2021 the maximum leverage ratio reverts back to 4.0x. The amendments also provide that during any period in which the Company's leverage ratio exceeds 4.5x debt to last twelve months EBITDA (i) the company will be prohibited from consummating share

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repurchases, subject to limited exceptions, (ii) borrowings under the revolving credit facility will accrue interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin of 1.25% or a base rate plus a margin of 0.25%, (iii) the facility fee that the Company is required to pay on the aggregate commitments under the revolving credit facility will be 0.25% per annum, and (iv) borrowings under the term loan facility will accrue interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin of 1.175% or a base rate plus a margin of 0.175%.

At the end of 2019, the Company had outstanding authorization from the board of directors to purchase up to $900.0 of Company common stock. As of September 30, 2020, the Company had outstanding authorization from the board of directors to purchase up to $800.0 of the Company's common stock. The repurchase authorization has no expiration date. The Company reinstated its share repurchase program in October 2020 following the temporary suspension of stock repurchases beginning in March 2020 due to the impact of the COVID-19 pandemic.

Credit Ratings

The Company’s investment grade debt ratings from Moody’s and from Standard and Poor’s (S&P) contribute to its ability to access capital markets.

ITEM 3. Quantitative and Qualitative Disclosures about Market Risk

Market risk is the potential loss arising from adverse changes in market rates and prices, such as foreign currency exchange rates, interest rates, and other relevant market rate or price changes. In the ordinary course of business, the Company is exposed to various market risks, including changes in foreign currency exchange and interest rates, and the Company regularly evaluates its exposure to such changes. The Company addresses its exposure to market risks, principally the market risks associated with changes in foreign currency exchange rates and interest rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments such as foreign currency forward contracts, and interest rate and cross currency swap agreements.

Foreign Currency Exchange Rates

Approximately 11.0% of the Company's revenues for the nine months ended September 30, 2020, and approximately 12.6% of the Company's revenue for the nine months ended September 30, 2019, were denominated in currencies other than the U.S. dollar. The Company's financial statements are reported in U.S. dollars and, accordingly, fluctuations in exchange rates will affect the translation of revenues and expenses denominated in foreign currencies into U.S. dollars for purposes of reporting the Company's consolidated financial results. In the third quarter of 2020 and the year ended December 31, 2019, the most significant currency exchange rate exposures were to the Canadian dollar, Swiss Franc, Euro and British Pound. Excluding the impacts from any outstanding or future hedging transactions, a hypothetical change of 10% in average exchange rates used to translate all foreign currencies to U.S. dollars would have impacted income before income taxes for the nine months ended September 30, 2020, by approximately $2.2. Gross accumulated currency translation adjustments recorded as a separate component of shareholders’ equity were $52.4 and $(45.4) at September 30, 2020, and 2019, respectively. The Company does not have significant operations in countries in which the economy is considered to be highly-inflationary.

The Company earns revenue from service contracts over a period of several months and, in some cases, over a period of several years. Accordingly, exchange rate fluctuations during this period may affect the Company's profitability with respect to such contracts. The Company is also subject to foreign currency transaction risk for fluctuations in exchange rates during the period of time between the consummation and cash settlement of transactions. The Company limits its foreign currency transaction risk through exchange rate fluctuation provisions stated in some of its contracts with customers, or it may hedge transaction risk with foreign currency forward contracts. At September 30, 2020, the Company had 38 open foreign exchange forward contracts relating to service contracts with various amounts maturing monthly through October 2020 with a notional value totaling approximately $564.6. At December 31, 2019, the Company had 34 open foreign exchange forward contracts relating to service contracts with various amounts maturing monthly through January 2020 with a notional value totaling approximately $369.2.

The Company is party to U.S. Dollar to Swiss Franc cross-currency swap agreements with an aggregate notional amount of $600.0, maturing in 2022 and 2025, as a hedge against the impact of foreign exchange movements on its net investment in a Swiss Franc functional currency subsidiary.

Interest Rates

Some of the Company's debt is subject to interest at variable rates. As a result, fluctuations in interest rates affect the business. The Company attempts to manage interest rate risk and overall borrowing costs through an appropriate mix of fixed and variable rate debt including by the utilization of derivative financial instruments, primarily interest rate swaps.

Borrowings under the Company's term loan credit facility and revolving credit facility are subject to variable interest rates, unless fixed through interest rate swaps or other agreements. As of September 30, 2020, and December 31, 2019, the Company

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had $375.0 and $375.0, respectively, of unhedged variable debt from the 2019 term loan credit facility and $0.0 and $0.0, respectively, outstanding on its revolving credit facility.

The Company exited the remaining fixed-to-variable interest rate swap arrangement in August 2020, in connection with the redemption of the 4.625% Senior Notes due 2020.

Each quarter-point increase or decrease in the variable rate would result in the Company's interest expense changing by approximately $0.9 per year for the Company's unhedged variable rate debt.

ITEM 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, the Company carried out, under the supervision and with the participation of the Company’s management, including the Company’s principal executive officer and principal financial officer, an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rules13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended). Based upon this evaluation, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were effective as of September 30, 2020.

Changes in Internal Control Over Financial Reporting

There were no changes in the Company’s internal control over financial reporting (as defined in Rules13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) that occurred during the quarter ended September 30, 2020, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

See Note 10 (Commitments and Contingencies) to the Company’s unaudited condensed consolidated financial statements, above, which is incorporated herein by reference.

Item 1A. Risk Factors

The risk factors set forth below update, and should be read in conjunction with, the risk factors set forth in Part I - Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, as amended. With the exception of the following, there have been no material changes in the risk factors that appear in Part I - Item 1A of the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

The effects of the outbreak of the COVID-19 pandemic have had and could continue to have material adverse impacts on the Company’s business, results of operations, cash flows, and financial position.

The Company is closely monitoring the impact of the COVID-19 pandemic on all aspects of its business. In the second half of March, daily volume for routine tests started to decline as a result of decreased consumer demand driven by a significant reduction in physician office visits, the cancellation of elective medical procedures, and the negative impacts on discretionary spending resulting from the economic downturn, among other factors. In addition, the performance of the Company’s drug development business was challenged by COVID-19 due to actions that clients have taken and are taking that slowed clinical trial progress and the associated testing as well as restrictions in trial site access in certain countries and interruptions in the supply chain. Given the continued unpredictability pertaining to the COVID-19 pandemic and the corresponding government restrictions and customer behavior, the impact on the Company's business is not yet certain and depends on the number of evolving factors that the Company may not be able to predict or effectively respond to.

The further spread of COVID-19, and the Company’s initiatives to help limit the spread of the illness, will impact the Company’s ability to carry out its business as usual, which could materially adversely impact its business and financial condition. The Company has incurred additional costs for the safety of its employees and the continuity of its operations, including increased frequency of deep cleaning and sanitation at each of its physical locations, additional safety training and processes, enhanced hygiene practices and materials, flexible and remote working where possible, and allowing for greater social distancing for the Company’s employees who must work on-site. Additionally, the Company has made a number of changes at the Company’s patient service centers for the comfort and safety of the patients, many of which have also increased costs for the Company. For example, the Company has set aside the first business hour of every day for vulnerable patients, launched a mobile check-in process that allows patients to wait for their appointment from within their car or other nearby location, and increased sanitation and disinfection in check-in areas, waiting rooms, bathrooms, and hallways with Centers for Disease Control and Prevention (CDC)-approved disinfectants.

The Company faces increased cybersecurity risks due to the number of employees that are working remotely in regions impacted by stay-at-home orders. Increased levels of remote access create additional opportunities for cybercriminals to exploit vulnerabilities, and employees may be more susceptible to phishing and social engineering attempts. The Company may also be subject to increased cyber-attacks, such as phishing attacks by threat actors using the attention placed on the pandemic as a method for targeting the Company's personnel. In addition, technological resources may be strained due to the number of remote users.

Adverse changes in government and third-party payer regulations, reimbursement, or coverage policies (or in the interpretation of current regulations) relating to COVID-19 testing could materially impact the Company's results of operations, cash flows and financial position.

The Company expects to continue to incur additional costs, which may be significant, as it continues to implement operational changes in response to this pandemic. Further, the COVID-19 outbreak has disrupted and could continue to disrupt the Company’s supply chain, including by impacting its ability to secure test collection supplies, equipment and testing supplies for its facilities, personal protective equipment for its employees in its testing locations, patient service centers, and drug development clinics. For similar reasons, the COVID-19 pandemic has also adversely impacted, and may continue to adversely impact, third parties that are critical to the Company’s business, including vendors, suppliers, and business partners. These developments, and others that are difficult or impossible to predict, could impact materially the Company’s business, financial results, cash flows, and financial position.

The Company has diverted resources to developing and enhancing the accessibility of COVID-19 testing, while at the same time taking certain steps with respect to its business strategy in order to increase cash flexibility. For example, the Company

40

temporarily suspended its share repurchase program, applied a heightened threshold to acquisition activity, and delayed some of its non-COVID-19 related capital expenditures. These measures, and any other measures the Company has taken and will continue to take to mitigate COVID-19, may be insufficient to ensure the financial stability of the Company, or may have other adverse impacts on the Company’s business, results of operations, cash flows, and financial position. Additionally, if the pandemic continues for an extended period of time, the Company may be forced to prioritize its application of resources to the continued mitigation of COVID-19, at the expense of other potentially profitable opportunities or initiatives, such as through the development of new products or selected business acquisitions.

If the Company does not respond appropriately to the COVID-19 pandemic, or if the Company’s customers do not perceive its response to be adequate, the Company could suffer damage to its reputation, which could adversely affect its business.

On March 11, 2020, the outbreak of COVID-19 was declared a global pandemic and containment and mitigation measures were recommended; six days prior to this characterization, the Company announced the availability of its LabCorp 2019 Novel Coronavirus (COVID-19) PCR test, which detects the presence of the underlying virus that causes COVID-19, for use with patients who meet current guidance for evaluation of infection with COVID-19. On April 9, 2020, the Company announced an agreement to collaborate on a comprehensive U.S.-based COVID-19 patient data registry. The Company also launched a self-collection kit for its COVID-19 PCR test under an emergency use authorization from the FDA, as well as expanded availability of antibody tests to detect antibodies to the virus that causes COVID-19. The Company has performed approximately 22 million COVID-19 tests, which represents about 19 million PCR tests and over 3 million antibody tests. The Company continues to increase capacity for COVID-19 PCR testing but the Company's testing capacity is dependent on access to multiple testing platforms and the availability of equipment and testing supplies and key personnel. The Company's central laboratory business has also seen a significant increase in demand for sample collection supplies and kits for clinical trials testing, which has caused some delays in delivery of kit orders. Despite the Company's efforts to expand capacity and access to COVID-19 testing and clincial trials collection kits, the Company may not be successful in meeting expectations, and the Company’s customers and other stakeholders may perceive the Company’s responses to the pandemic as insufficient, inadequate or not equivalent to or better than competitors, including with respect to the availability of testing, collection kits, and the amount of time it takes for delivery of test results or fulfillment of kit orders. Factors that may be out of the Company’s control, such as the availability of equipment, supplies, and key personnel and geographical changes in demand, may impact the Company’s ability to meet customer demand and the Company's other responses to the COVID-19 pandemic, and may have an adverse effect on the Company’s operations. Any such disruptions could result in negative publicity, and the Company could suffer damage to its reputation, which could adversely affect its business, results of operations, cash flows, and financial position.

The success of the Company is dependent in part on the efforts of its management team and employees, and the COVID-19 pandemic could divert or hinder the Company’s human capital resources, which may adversely affect the Company’s operations.

The Company’s management team and employees have been acutely focused on efforts to respond to and mitigate COVID-19, including developing COVID-19 Testing. The Company has been continuously working to increase the number of tests that can be performed and improve the time for delivering test results. The Company’s management team is also working closely with federal and state authorities, health officials, and other key constituencies to make testing available to patients who meet the CDC criteria for who should be tested, and Department of Health and Human Services (HHS) guidance for prioritization of testing. These response efforts have required, and will continue to require, a large investment of time and resources that would otherwise be focused on the development and growth of the Company. Further, the Company's ability to maintain and expand testing capacity depend upon maintaining and expanding its employee population. If the Company’s management team or employees become unavailable due to illness or from other related factors, its operations could be materially adversely affected.

The ongoing COVID-19 pandemic has created significant volatility, uncertainty, and economic disruption that could have an adverse impact on the Company’s financial position, including with respect to the Company’s ability to repay its senior notes when due and maintain its maximum leverage ratio covenant under its term loan facility and revolving credit facility.

While the Company believes that it maintains a solid financial position, including a strong balance sheet, investment grade ratings, and significant access to credit, the sweeping nature of the rapidly-evolving COVID-19 pandemic has created cascading effects, all of which are difficult to predict. If the pandemic continues to create disruptions or turmoil in the credit and financial markets, the Company’s ability to access capital on favorable terms and continue to meet its liquidity needs in the future could be adversely impacted. The Company may also experience greater than normal impact due to fluctuations in foreign exchange rates and interest rates, decreased sales volumes, changes in employment rates and health insurance coverage, the speed of the anticipated recovery, the ability of its customers to pay for its services, and governmental and business reactions to the pandemic, all of which are highly uncertain and cannot be predicted. The Company implemented several measures in order to increase cash flexibility in light of these economic uncertainties, including temporarily suspending its share repurchase program, applying a heightened threshold to acquisition activity, and delaying some of its non-COVID-19 related capital

41

expenditures. These measures, and any other measures the Company may take to mitigate COVID-19, may be insufficient to ensure the financial stability of the Company, and may have other adverse impacts on the Company’s business, results of operations, cash flows, and financial position.

In May 2020, the Company and its lenders entered into amendments to the term loan facility and the revolving credit facility to increase the maximum leverage ratio covenant to 5.0x debt to last twelve months EBITDA for each of the three month periods ending June 30, September 30, and December 31, 2020, and 4.5x debt to last twelve months EBITDA for the three month period ending March 31, 2021. Violation of that covenant could preclude the Company from borrowing on the revolving credit facility and require repayment of its term loan of $375.0, if demanded by a majority of the Company's bank group. There can be no assurance that the Company will be able to maintain compliance with this modified covenant due to the uncertainties of the Company's financial performance as a result of the COVID-19 pandemic. If the Company were not able to do so, any future covenant amendment or waiver that the Company may need or seek in the future may lead to increased costs, increased interest rates, additional restrictive covenants and other available lender protections. There can be no assurance that the Company would be able to obtain additional amendments or waivers in a timely manner, on acceptable terms, or at all.

A violation of its term loan and revolving credit facility leverage ratio covenants or other covenants, a failure to obtain any additional covenant amendments or waivers, or a failure to obtain alternative financing, if required, could result in a default, which would result in defaults under the Company’s other debt agreements and have material adverse consequences for the Company.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds (dollars in millions, except per share data)

The following table sets forth information with respect to purchases of shares of the Company’s common stock based on settled trades made during the three months ended September 30, 2020, by or on behalf of the Company:

	Total Number of Shares Repurchased	Average Price Paid Per Share		Total Number of Shares Repurchased as Part of Publicly Announced Program	Maximum Dollar Value of Shares that May Yet Be Repurchased Under the Program
July 1 - July 31	—	$	—	—	$	800.0
August 1 - August 31	—	—		—	800.0
September 1 - September 30	—	—		—	800.0
	—	$	—	—	$	800.0

As of September 30, 2020, the Company had outstanding authorization from the board of directors to purchase up to $800.0 of the Company's common stock. The repurchase authorization has no expiration date. The Company reinstated its share repurchase program in October 2020 following the temporary suspension of stock repurchases beginning in March 2020 due to the impact of the COVID-19 pandemic.

Item 5. Other Information

None.

42

Item 6. Exhibits

(a)	Exhibits
31.1*	Certification by the Chief Executive Certification by Certification by the Chief Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) Chief Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) pursuant to Rule 13a-14(a) or Rule 15d-14(a)
31.2*	Certification by the Chief Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a)
32**	Written Statement of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)
101.INS*	Inline XBRL Instance Document - The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH*	Inline XBRL Taxonomy Extension Schema
101.CAL*	Inline XBRL Taxonomy Extension Calculation Linkbase
101.DEF*	Inline XBRL Taxonomy Extension Definition Linkbase
101.LAB*	Inline XBRL Taxonomy Extension Label Linkbase
101.PRE*	Inline XBRL Taxonomy Extension Presentation Linkbase
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

*	filed herewith
**	furnished herewith

43

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

LABORATORY CORPORATION OF AMERICA HOLDINGS

Registrant

By:	/s/ ADAM H. SCHECHTER
	Adam H. Schechter
	Chief Executive Officer

By:	/s/ GLENN A. EISENBERG
	Glenn A. Eisenberg
	Executive Vice President and
	Chief Financial Officer

October 29, 2020

44

EX-31.1

Exhibit 31.1

Certification

I, Adam H. Schechter, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Laboratory Corporation of America Holdings;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	October 29, 2020
		By:	/s/ ADAM H. SCHECHTER
			Adam H. Schechter
			Chief Executive Officer
			(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification

I, Glenn A. Eisenberg, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Laboratory Corporation of America Holdings;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	October 29, 2020
		By:	/s/ GLENN A. EISENBERG
			Glenn A. Eisenberg
			Chief Financial Officer
			(Principal Financial Officer)

EX-32.1

Exhibit 32

Written Statement of

Chief Executive Officer and Chief Financial Officer

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

The undersigned, the Chief Executive Officer and the Chief Financial Officer of Laboratory Corporation of America Holdings (the “Company”), each hereby certifies that, to his knowledge on the date hereof:

(a) the Form 10-Q of the Company for the Period Ended September 30, 2020, filed on the date hereof with the Securities and Exchange Commission (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ ADAM H. SCHECHTER
	Adam H. Schechter
	Chief Executive Officer
	October 29, 2020

By:	/s/ GLENN A. EISENBERG
	Glenn A. Eisenberg
	Chief Financial Officer
	October 29, 2020

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Laboratory Corporation of America Holdings and will be retained by Laboratory Corporation of America Holdings and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares shares in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Oct. 28, 2020
Document Information [Table]
Entity Interactive Data Current		Yes
Entity Filer Category		Large Accelerated Filer
Entity Small Business		false
Entity Emerging Growth Company		false
Entity Shell Company		false
Entity Common Stock, Shares Outstanding			97.4
Document Fiscal Period Focus	Q3
Amendment Flag	false
Document Type		10-Q
Document Quarterly Report		true
Document Period End Date	Sep. 30, 2020
Document Transition Report		false
Entity File Number		1-11353
Entity Registrant Name		LABORATORY CORPORATION OF AMERICA HOLDINGS
Entity Incorporation, State or Country Code		DE
Entity Tax Identification Number		13-3757370
Entity Address, Address Line One		358 South Main Street
Entity Address, City or Town		Burlington,
Entity Address, State or Province		NC
Entity Address, Postal Zip Code		27215
City Area Code		336
Local Phone Number		229-1127
Title of 12(b) Security		Common Stock, $0.10 par value
Trading Symbol		LH
Security Exchange Name		NYSE
Entity Current Reporting Status		Yes
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000920148

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts Payable, Current	$ 639.5	$ 632.3
Current assets:
Cash and cash equivalents	667.2	337.5
Accounts Receivable, after Allowance for Credit Loss, Current	2,095.2	1,543.9
Unbilled Contracts Receivable	603.5	481.4
Supplies inventories	392.5	244.7
Prepaid expenses and other	327.2	373.7
Total current assets	4,085.6	2,981.2
Property, plant and equipment, net	2,608.6	2,636.6
Goodwill, net	7,613.8	7,865.0
Intangible Assets, Net (Excluding Goodwill)	3,920.5	4,034.5
Joint venture partnerships and equity method investments	70.7	84.9
Deferred Income Taxes and Other Assets, Current	3.4	8.8
Other assets, net	437.0	435.4
Total assets	18,739.6	18,046.4
Liabilities, Current [Abstract]
Accrued Liabilities, Current	1,297.8	942.4
Deferred Revenue, Current	494.8	451.0
Operating Lease, Liability, Current	193.8	206.5
Finance Lease, Liability, Current	7.4	8.4
Debt, Current	376.6	415.2
Long-term debt, less current portion	3,009.9	2,655.8
Long-term Debt, Excluding Current Maturities	5,417.3	5,789.8
Commitments and contingent liabilities	473.2	383.2
Operating Lease, Liability, Noncurrent	602.4	596.6
Finance Lease, Liability, Noncurrent	86.3	91.1
Deferred income taxes and other tax liabilities	891.5	942.8
Noncontrolling interest	10,480.6	10,459.3
Shareholders' equity:
Common stock, 92.8 and 93.5 shares outstanding at March 31, 2013 and December 31, 2012, respectively	19.9	20.1
Additional paid-in capital	80.7	26.8
Retained earnings	9.0	9.0
Accumulated other comprehensive income	(8,464.0)	(7,903.6)
Total liabilities and shareholders' equity	(314.6)	(372.4)
Stockholders' Equity Attributable to Parent	8,239.1	7,567.0
Liabilities and Equity	$ 18,739.6	$ 18,046.4

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accounts Receivable, Allowance for Credit Loss	$ 26.6	$ 19.0
Shareholders' Equity:
Common stock, shares outstanding (in shares)	97.4	97.2

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues	$ 3,896,100,000	$ 2,928,500,000	$ 9,488,700,000	$ 8,601,400,000
Cost of Revenue	2,336,700,000	2,111,200,000	6,440,800,000	6,169,600,000
Gross Profit	1,559,400,000	817,300,000	3,047,900,000	2,431,800,000
Selling, general and administrative expenses	419,500,000	401,500,000	1,211,300,000	1,210,600,000
Amortization of intangibles and other assets	62,200,000	61,700,000	184,600,000	179,000,000.0
Asset Impairment Charges	23,500,000	0	460,900,000	0
Net restructuring and other special charges	7,100,000	14,200,000
Operating Income (Loss)	1,047,100,000	339,900,000	1,152,200,000	993,800,000
Other income (expenses):
Interest expense	(51,400,000)	(60,500,000)	(159,100,000)	(176,300,000)
Equity method income, net	3,000,000.0	2,400,000	(1,800,000)	7,900,000
Investment income	2,600,000	2,900,000	7,700,000	4,800,000
Other, net	(54,200,000)	2,700,000	(22,600,000)	(18,200,000)
Earnings before income taxes	947,100,000	287,400,000	976,400,000	812,000,000.0
Provision for income taxes	243,400,000	66,400,000	358,000,000.0	214,400,000
Net earnings	703,700,000	221,000,000.0	618,400,000	597,600,000
Less: Net earnings attributable to the noncontrolling interest	(300,000)	(300,000)	(600,000)	(900,000)
Net earnings attributable to Laboratory Corporation of America Holdings	$ 703,400,000	$ 220,700,000	$ 617,800,000	$ 596,700,000
Basic earnings per common share (in dollars per share)	$ 7.22	$ 2.26	$ 6.35	$ 6.08
Diluted earnings per common share (in dollars per share)	$ 7.17	$ 2.25	$ 6.31	$ 6.04

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net restructuring and other special charges	$ 7,100,000	$ 14,200,000
Provision for income taxes	243,400,000	66,400,000	$ 358,000,000.0	$ 214,400,000
Net earnings	703,700,000	221,000,000.0	618,400,000	597,600,000
Other Comprehensive Earnings, Net of Tax
Foreign currency translation adjustments	132,900,000	(92,600,000)	52,400,000	(45,400,000)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	2,100,000	3,200,000	7,500,000	8,700,000
Other comprehensive earnings (loss) before tax	135,000,000.0	(89,400,000)	59,900,000	(36,700,000)
Tax effect of adjustments	(600,000)	(900,000)	(2,100,000)	(2,400,000)
Other comprehensive earnings (loss), net of tax	134,400,000	(90,300,000)	57,800,000	(39,100,000)
Comprehensive earnings	838,100,000	130,700,000	676,200,000	558,500,000
Less: Net earnings attributable to the noncontrolling interest	(300,000)	(300,000)	(600,000)	(900,000)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 837,800,000	$ 130,400,000	$ 675,600,000	$ 557,600,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]
BALANCE at Dec. 31, 2018	$ 6,971,400,000	$ 11,700,000	$ 1,451,100,000	$ 7,079,800,000	$ (1,108,100,000)	$ (463,100,000)
Net earnings attributable to Laboratory Corporation of America Holdings	185,600,000	0	0	185,600,000	0	0
Other comprehensive earnings, net of tax	23,600,000	0	0	0	0	23,600,000
Issuance of common stock under employee stock plans	(24,700,000)	0	(24,700,000)	0	0	0
Surrender of restricted stock and performance share awards	(19,400,000)	0	0	0	(19,400,000)	0
Stock compensation	25,500,000	0	25,500,000	0	0	0
Purchase of common stock	(100,100,000)	100,000	100,000,000.0	0	0	0
BALANCE at Mar. 31, 2019	7,111,300,000	11,600,000	1,401,300,000	7,265,400,000	(1,127,500,000)	(439,500,000)
BALANCE at Dec. 31, 2018	6,971,400,000	11,700,000	1,451,100,000	7,079,800,000	(1,108,100,000)	(463,100,000)
Net earnings attributable to Laboratory Corporation of America Holdings	596,700,000
Other comprehensive earnings, net of tax	(39,100,000)
Conversion of zero-coupon convertible debt	1,700,000
BALANCE at Sep. 30, 2019	7,231,100,000	9,000,000.0	47,800,000	7,676,500,000	0	(502,200,000)
BALANCE at Mar. 31, 2019	7,111,300,000	11,600,000	1,401,300,000	7,265,400,000	(1,127,500,000)	(439,500,000)
Net earnings attributable to Laboratory Corporation of America Holdings	190,400,000	0	0	190,400,000	0	0
Other comprehensive earnings, net of tax	27,600,000	0	0	0	0	27,600,000
Issuance of common stock under employee stock plans	(9,200,000)	0	(9,200,000)	0	0	0
Surrender of restricted stock and performance share awards	(20,700,000)	0	0	0	(20,700,000)	0
Stock compensation	26,500,000	0	26,500,000	0	0	0
Purchase of common stock	(199,900,000)	100,000	199,800,000	0	0	0
BALANCE at Jun. 30, 2019	7,144,400,000	9,100,000	91,400,000	7,455,800,000	0	(411,900,000)
Treasury Stock, Retired, Cost Method, Amount	0	(2,400,000)	(1,145,800,000)	0	(1,148,200,000)	0
Net earnings attributable to Laboratory Corporation of America Holdings	220,700,000	0	0		0	0
Other comprehensive earnings, net of tax	(90,300,000)	0	0	0	0
Issuance of common stock under employee stock plans	(25,100,000)	0	(25,100,000)	0	0	0
Surrender of restricted stock and performance share awards	(300,000)	0	(300,000)	0	0	0
Stock compensation	31,500,000	0	31,500,000	0	0	0
Purchase of common stock	(100,000,000.0)	100,000		0	0	0
BALANCE at Sep. 30, 2019	7,231,100,000	9,000,000.0	47,800,000	7,676,500,000	0	(502,200,000)
Treasury Stock, Retired, Cost Method, Amount			(99,900,000)
Retained Earnings (Accumulated Deficit)	7,903,600,000
BALANCE at Dec. 31, 2019	7,567,000,000.0	9,000,000.0	26,800,000	7,903,600,000	0	(372,400,000)
Net earnings attributable to Laboratory Corporation of America Holdings	(317,200,000)	0	0	(317,200,000)	0	0
Other comprehensive earnings, net of tax	(145,500,000)	0	0	0	0	(145,500,000)
Issuance of common stock under employee stock plans	(26,900,000)	0	(26,900,000)	0	0	0
Surrender of restricted stock and performance share awards	(22,000,000.0)	0	(22,000,000.0)	0	0	0
Stock compensation	17,900,000	0	17,900,000	0	0	0
Purchase of common stock	(100,000,000.0)	0	49,600,000	50,400,000	0	0
BALANCE at Mar. 31, 2020	7,020,100,000	9,000,000.0	0	7,529,000,000.0	0	(517,900,000)
BALANCE at Dec. 31, 2019	7,567,000,000.0	9,000,000.0	26,800,000	7,903,600,000	0	(372,400,000)
Net earnings attributable to Laboratory Corporation of America Holdings	617,800,000
Other comprehensive earnings, net of tax	57,800,000
Conversion of zero-coupon convertible debt	0
BALANCE at Sep. 30, 2020	8,239,100,000	9,000,000.0	80,700,000	8,464,000,000.0	0	(314,600,000)
BALANCE at Mar. 31, 2020	7,020,100,000	9,000,000.0	0	7,529,000,000.0	0	(517,900,000)
Net earnings attributable to Laboratory Corporation of America Holdings	231,600,000	0	0	231,600,000	0	0
Other comprehensive earnings, net of tax	68,900,000	0	0	0	0	68,900,000
Issuance of common stock under employee stock plans	(1,800,000)	0	(1,800,000)	0	0	0
Surrender of restricted stock and performance share awards	(9,500,000)	0	(9,500,000)	0	0	0
Stock compensation	39,800,000	0	39,800,000	0	0	0
BALANCE at Jun. 30, 2020	7,352,700,000	9,000,000.0	32,100,000	7,760,600,000	0	(449,000,000.0)
Net earnings attributable to Laboratory Corporation of America Holdings	703,400,000	0	0	703,400,000	0	0
Other comprehensive earnings, net of tax	134,400,000	0	0	0	0	134,400,000
Issuance of common stock under employee stock plans	(21,900,000)	0	(21,900,000)	0	0	0
Surrender of restricted stock and performance share awards	(500,000)	0	(500,000)	0	0	0
Stock compensation	27,200,000	0	27,200,000	0	0	0
BALANCE at Sep. 30, 2020	8,239,100,000	$ 9,000,000.0	$ 80,700,000	$ 8,464,000,000.0	$ 0	$ (314,600,000)
Retained Earnings (Accumulated Deficit)	$ 8,464,000,000.0

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 618,400,000	$ 597,600,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Contingent consideration adjustment	2,100,000
Depreciation And Amortization Of Leased Assets	150,700,000	144,100,000
Depreciation and amortization	440,800,000	421,400,000
Stock compensation	84,900,000	83,500,000
Asset Impairment Charges	460,900,000	0
Deferred income taxes	(48,500,000)	23,300,000
Other Operating Activities, Cash Flow Statement	55,200,000	12,500,000
Change in assets and liabilities (net of effects of acquisitions):
Increase in accounts receivable (net)	(546,900,000)	(144,300,000)
Increase (Decrease) in Unbilled Contract Receivable	117,800,000	59,500,000
Increase in inventories	(147,500,000)	(14,500,000)
Decrease in prepaid expenses and other	26,100,000	5,800,000
Decrease in accounts payable	17,300,000	(28,200,000)
Increase (Decrease) in Deferred Revenue	44,100,000	(1,000,000.0)
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities	323,000,000.0	(165,800,000)
Net cash provided by operating activities	1,360,700,000	874,900,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(282,300,000)	(272,000,000.0)
Proceeds from sale of assets	1,100,000	5,800,000
Proceeds from Sale of Equity Method Investments	1,000,000.0	9,400,000
Proceeds from Hedge, Investing Activities	3,100,000	0
Investments in equity affiliates	(29,300,000)	(21,300,000)
Acquisition of businesses, net of cash acquired	(208,800,000)	(852,900,000)
Net cash used for investing activities	(515,200,000)	(1,131,000,000.0)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facilities	151,700,000	473,000,000.0
Payment, Tax Withholding, Share-based Payment Arrangement	(32,000,000.0)	(40,400,000)
Net proceeds from issuance of stock to employees	50,600,000	59,000,000.0
Payments for Repurchase of Common Stock	(100,000,000.0)	(400,000,000.0)
Other Financing Cash Flows	(22,800,000)	(21,900,000)
Repayments of Lines of Credit	(151,700,000)	(473,000,000.0)
Repayments of Senior Debt	(412,200,000)	0
Net cash provided by (used for) financing activities	(516,400,000)	196,700,000
Effect of exchange rate changes on cash and cash equivalents	600,000	(6,300,000)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	329,700,000	(65,700,000)
Cash and cash equivalents at beginning of period	337,500,000	426,800,000
Cash and cash equivalents at end of period	667,200,000	361,100,000
Proceeds from Issuance of Other Long-term Debt	0	850,000,000.0
Repayments of Other Long-term Debt	$ 0	$ (250,000,000.0)

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SUPPLEMENTAL CASH FLOW INFORMATION

3 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

	Nine Months Ended September 30,
	2020		2019
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	195.8	$	216.5
Income taxes, net of refunds	217.5		181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	—		1.7
Change in accrued property, plant and equipment	(24.5)		(15.9)
Floating rate secured note receivable due 2022	—		110.0

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

	Nine Months Ended September 30,
	2020		2019
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	195.8	$	216.5
Income taxes, net of refunds	217.5		181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	—		1.7
Change in accrued property, plant and equipment	(24.5)		(15.9)
Floating rate secured note receivable due 2022	—		110.0

XML

SUPPLEMENTAL CASH FLOW INFORMATION Tabular Information

3 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

	Nine Months Ended September 30,
	2020		2019
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	195.8	$	216.5
Income taxes, net of refunds	217.5		181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	—		1.7
Change in accrued property, plant and equipment	(24.5)		(15.9)
Floating rate secured note receivable due 2022	—		110.0

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

	Nine Months Ended September 30,
	2020		2019
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	195.8	$	216.5
Income taxes, net of refunds	217.5		181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	—		1.7
Change in accrued property, plant and equipment	(24.5)		(15.9)
Floating rate secured note receivable due 2022	—		110.0

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SUPPLEMENTAL CASH FLOW INFORMATION Description Information - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Debt Conversion [Line Items]
Decrease in Capital Expenditures Incurred but not yet Paid	$ (24.5)
Capital Expenditures Incurred but Not yet Paid		$ (15.9)
Notes Receivable, Fair Value Disclosure	0.0	110.0
Cash paid during period for:
Interest	195.8	216.5
Income taxes, net of refunds	217.5	181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	$ 0.0	$ 1.7

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BASIS OF FINANCIAL STATEMENT PRESENTATION

3 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

BASIS OF FINANCIAL STATEMENT PRESENTATION

Laboratory Corporation of America® Holdings together with its subsidiaries (the Company) is a leading global life sciences company that is deeply integrated in guiding patient care, providing comprehensive clinical laboratory and end-to-end drug development services. The Company’s mission is to improve health and improve lives by delivering world-class diagnostic solutions, bringing innovative medicines to patients faster and using technology to provide better care. The Company serves a broad range of customers, including managed care organizations (MCOs), biopharmaceutical and medical device companies, governmental agencies, physicians and other health care providers (e.g., physician assistants and nurse practitioners, generally referred to herein as physicians), hospitals and health systems, employers, patients and consumers, contract research organizations (CROs), and independent clinical laboratories.

The Company reports its business in two segments, LabCorp Diagnostics (LCD) and Covance Drug Development (CDD). For further financial information about these segments, see Note 15 Business Segment Information to the Condensed Consolidated Financial Statements. During the three months ended September 30, 2020, LCD and CDD contributed approximately 68% and 32% respectively, of revenues to the Company. During the nine months ended September 30, 2020, LCD and CDD contributed approximately 63% and 37%, respectively, of revenues to the Company.

The condensed consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries for which it exercises control. Long-term investments in affiliated companies in which the Company exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which the Company does not exercise significant influence (generally, when the Company has an investment of less than 20.0% and no representation on the investee's board of directors) are accounted for at fair value or at cost minus impairment adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer for those investments that do not have readily determinable fair values. All significant inter-company transactions and accounts have been eliminated. The Company does not have any significant variable interest entities or special purpose entities whose financial results are not included in the condensed consolidated financial statements.

The financial statements of the Company's operating foreign subsidiaries are measured using the local currency as the functional currency. Assets and liabilities are translated at exchange rates as of the balance sheet date. Revenues and expenses are translated at average monthly exchange rates prevailing during the period. Resulting translation adjustments are included in “Accumulated other comprehensive income.”

The accompanying condensed consolidated financial statements of the Company are unaudited. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows, and financial position have been made. Except as otherwise disclosed, all such adjustments are of a normal recurring nature. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.

The condensed consolidated financial statements and notes are presented in accordance with the rules and regulations of the United States (U.S.) Securities and Exchange Commission (SEC) and do not contain certain information included in the Company’s 2019 Annual Report on Form 10-K (Annual Report). Therefore, these interim statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report.

Recently Adopted Guidance

In June 2016, the FASB issued a new accounting standard intended to provide financial statement users with more decision-useful information about expected credit losses and other commitments to extend credit held by the reporting entity. The standard replaces the incurred loss impairment methodology in current generally accepted accounting principles (GAAP) with one that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company recorded an opening retained earnings adjustment of $7.0 with the adoption of this standard on January 1, 2020.

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on fair value measurements. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

In August 2018, the FASB issued a new accounting standard to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred

to develop or obtain internal-use software. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

New Accounting Pronouncements

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on defined benefit pension and other postretirement plans. The standard is effective on January 1, 2021, with early adoption permitted. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In December 2019, the FASB issued a new accounting standard to simplify accounting for income taxes and remove, modify, and add to the disclosure requirements of income taxes. The standard is effective January 1, 2021, with early adoption permitted. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In January 2020, the FASB issued a new accounting standard to clarify the interaction of the accounting for equity securities and investments accounted for under the equity method of accounting and the accounting for certain forward contracts and purchased options. The standard is effective January 1, 2021. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In March 2020, the FASB issued a new accounting standard to provide optional expedients and exceptions if certain conditions are met for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. The expedients and exceptions in the standard are effective between March 12, 2020, and December 31, 2022. The Company did not elect to apply any of the expedients or exceptions for the period ended September 30, 2020, and is currently evaluating the impact this new standard will have on the consolidated financial statements.

In August 2020, the FASB issued a new accounting standard to address issues identified as a result of the complexity associated with applying generally accepted accounting principles for convertible instruments and contracts in an entity's own equity. The standard is effective January 1, 2022, with early adoption permitted. The Company is evaluating the impact this new standard will have on the consolidated financial statements.

Novel Coronavirus (COVID-19) Financial Statement Impact

In March 2020, COVID-19 was declared a pandemic. COVID-19 has had and continues to have an extensive impact on the global health and economic environments. During the nine months ended September 30, 2020, the Company recorded goodwill and other asset impairment charges of $437.4, as a result of the negative financial impact of COVID-19 during the first quarter of 2020. See Note 6 Goodwill and Intangible Assets for a discussion of goodwill and intangible asset impairment and Note 2 Revenues for a discussion of credit losses and additional price concessions. The Company also impaired certain of the Company's investments by a total of $25.4 during the nine months ended September 30, 2020, due to the impact of COVID-19; $7.1 was included in Equity method earnings (loss), net during the three months ended March 31, 2020, and $13.1 and $5.2 were included in Other, net during the three months ended March 31, 2020, and June 30, 2020, respectively.

In April 2020, the Company received cash payments of approximately $55.9 from the Public Health and Social Services Emergency Fund for provider relief that was appropriated by Congress to the Department of Health and Human Services (HHS) in the Coronavirus Aid, Relief, and Economic Security Act (CARES Act Provider Relief Funds). Upon receiving and satisfying the terms and conditions associated with the distributed funds, the Company accounted for the transaction by applying the guidance in ASC 450-30 Gain Contingencies, and recorded these funds in Other, net non-operating income in the Consolidated Statement of Operations as of June 30, 2020. In August 2020, the Company received an additional $76.2 in CARES Act Provider Relief Funds. As the Company's Diagnostic business demonstrated recovery and demand for COVID-19 testing increased, the Company determined that the negative financial impact of COVID-19 which the CARES Act Provider Relief Funds were designed to address no longer applied to the Company. As a result, the Company derecognized the income associated with the $55.9 received during the second quarter as a change in estimate and did not recognize any income related to the cash payment of $76.2 received in the third quarter. The Company plans to return the CARES Act Provider Relief Funds to the government in the fourth quarter of 2020 and has recorded a liability of $132.1 in Accrued expenses and other as of September 30, 2020.

Use of Estimates

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

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.

Basis of Presentation and Significant Accounting Policies [Text Block]

BASIS OF FINANCIAL STATEMENT PRESENTATION

Laboratory Corporation of America® Holdings together with its subsidiaries (the Company) is a leading global life sciences company that is deeply integrated in guiding patient care, providing comprehensive clinical laboratory and end-to-end drug development services. The Company’s mission is to improve health and improve lives by delivering world-class diagnostic solutions, bringing innovative medicines to patients faster and using technology to provide better care. The Company serves a broad range of customers, including managed care organizations (MCOs), biopharmaceutical and medical device companies, governmental agencies, physicians and other health care providers (e.g., physician assistants and nurse practitioners, generally referred to herein as physicians), hospitals and health systems, employers, patients and consumers, contract research organizations (CROs), and independent clinical laboratories.

The Company reports its business in two segments, LabCorp Diagnostics (LCD) and Covance Drug Development (CDD). For further financial information about these segments, see Note 15 Business Segment Information to the Condensed Consolidated Financial Statements. During the three months ended September 30, 2020, LCD and CDD contributed approximately 68% and 32% respectively, of revenues to the Company. During the nine months ended September 30, 2020, LCD and CDD contributed approximately 63% and 37%, respectively, of revenues to the Company.

The condensed consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries for which it exercises control. Long-term investments in affiliated companies in which the Company exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which the Company does not exercise significant influence (generally, when the Company has an investment of less than 20.0% and no representation on the investee's board of directors) are accounted for at fair value or at cost minus impairment adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer for those investments that do not have readily determinable fair values. All significant inter-company transactions and accounts have been eliminated. The Company does not have any significant variable interest entities or special purpose entities whose financial results are not included in the condensed consolidated financial statements.

The financial statements of the Company's operating foreign subsidiaries are measured using the local currency as the functional currency. Assets and liabilities are translated at exchange rates as of the balance sheet date. Revenues and expenses are translated at average monthly exchange rates prevailing during the period. Resulting translation adjustments are included in “Accumulated other comprehensive income.”

The accompanying condensed consolidated financial statements of the Company are unaudited. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows, and financial position have been made. Except as otherwise disclosed, all such adjustments are of a normal recurring nature. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.

The condensed consolidated financial statements and notes are presented in accordance with the rules and regulations of the United States (U.S.) Securities and Exchange Commission (SEC) and do not contain certain information included in the Company’s 2019 Annual Report on Form 10-K (Annual Report). Therefore, these interim statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report.

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EARNINGS PER SHARE

3 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

Basic earnings per share is computed by dividing net earnings attributable to Laboratory Corporation of America Holdings by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings including the impact of dilutive adjustments by the weighted average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock awards, restricted stock units, and performance share awards.

The following represents a reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended September 30,										Nine Months Ended September 30,
	2020					2019					2020					2019
	Earnings		Shares	Per Share Amount		Earnings		Shares	Per Share Amount		Earning		Shares	Per Share Amount		Earnings		Shares	Per Share Amount
Basic earnings per share:
Net earnings	$	703.4	97.4	$	7.22	$	220.7	97.6	$	2.26	$	617.8	97.3	$	6.35	$	596.7	98.1	$	6.08
Dilutive effect of employee stock options and awards	—		0.7			—		0.7			—		0.6			—		0.7
Net earnings including impact of dilutive adjustments	$	703.4	98.1	$	7.17	$	220.7	98.3	$	2.25	$	617.8	97.9	$	6.31	$	596.7	98.8	$	6.04

Diluted earnings per share represent the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. These potential shares include dilutive stock options and unissued restricted stock awards. The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Employee stock options and awards	0.2	0.2	0.4	0.2

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RESTRUCTURING AND OTHER SPECIAL CHARGES

3 Months Ended

Sep. 30, 2020

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

RESTRUCTURING AND OTHER CHARGES

During the nine months ended September 30, 2020, the Company recorded net restructuring and other charges of $38.9: $13.4 within LCD and $25.5 within CDD. The charges were comprised of $12.8 related to severance and other personnel costs, $11.0 for a CDD leased lab facility and equipment impairments, and $24.0 in facility closures, impairment of operating lease right-of use assets and general integration activities. The charges were offset by the reversal of previously established liability of $1.1 and $7.8 in unused severance costs and facility-related costs, respectively.

During the nine months ended September 30, 2019, the Company recorded net restructuring and other charges of $48.4: $22.8 within LCD and $25.6 within CDD. The charges were comprised of $26.2 related to severance and other personnel costs and $22.0 in costs associated with facility closures, impairment of operating lease right-of-use assets and general integration initiatives. The charges were increased by the adjustment of previously established reserves of $0.4 in severance reserves and decreased by a reversal of $0.2 in unused facility reserves.

The following represents the Company’s restructuring reserve activities for the period indicated:

	LCD				CDD
	Severance and Other Employee Costs		Facility Costs		Severance and Other Employee Costs		Facility Costs		Total
Balance as of December 31, 2019	$	0.5	$	2.7	$	5.5	$	4.7	$	13.4
Restructuring charges	3.9		5.2		8.9		6.7		24.7
Impairment of lab facility and equipment	—		5.8		—		17.3		23.1
Cash payments and other adjustments	(4.4)		(12.2)		(10.4)		(23.8)		(50.8)
Balance as of September 30, 2020	$	—	$	1.5	$	4.0	$	4.9	$	10.4
Current									$	8.1
Non-current									2.3
									$	10.4

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DEBT

3 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Debt

DEBT

Short-term borrowings and the current portion of long-term debt at September 30, 2020, and December 31, 2019, consisted of the following:

	September 30, 2020		December 31, 2019
4.625% senior notes due 2020	$	—	$	413.7
2019 Term Loan	375.0		—
Debt issuance costs	(0.6)		(0.7)
Current portion of note payable	2.2		2.2
Total short-term borrowings and current portion of long-term debt	$	376.6	$	415.2

Long-term debt at September 30, 2020, and December 31, 2019, consisted of the following:

	September 30, 2020		December 31, 2019
3.20% senior notes due 2022	$	500.0	$	500.0
3.75% senior notes due 2022	500.0		500.0
4.00% senior notes due 2023	300.0		300.0
3.25% senior notes due 2024	600.0		600.0
2.30% senior notes due 2024	400.0		400.0
3.60% senior notes due 2025	1,000.0		1,000.0
3.60% senior notes due 2027	600.0		600.0
2.95% senior notes due 2029	650.0		650.0
4.70% senior notes due 2045	900.0		900.0
2019 Term Loan	—		375.0
Debt issuance costs	(38.8)		(42.2)
Note payable	6.1		7.0
Total long-term debt	$	5,417.3	$	5,789.8

Senior Notes

On August 17, 2020, the Company redeemed the remaining $412.2 of its 4.625% Senior Notes due November 15, 2020, using available cash on hand. The Company exited the remaining fixed-to-variable interest rate swap arrangement in August 2020, in connection with this redemption and recorded a gain of $1.6 on the extinguishment. The gain was included in Other, net on the Condensed Consolidated Statement of Operations.

Credit Facilities

On June 3, 2019, the Company entered into a new $850.0 2019 term loan facility that matures on June 3, 2021. The 2019 term loan facility accrues interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin ranging from 0.55% to 1.175%, or a base rate determined according to a prime rate or federal funds rate plus a margin ranging from 0.0% to 0.175%. The 2019 term loan balance at September 30, 2020, and December 31, 2019, was $375.0 and $375.0, respectively. As of September 30, 2020, the effective interest rate on the 2019 term loan was 0.95%.

The Company also maintains a senior revolving credit facility consisting of a five-year facility in the principal amount of up to $1,000.0, with the option of increasing the facility by up to an additional $350.0, subject to the agreement of one or more new or existing lenders to provide such additional amounts and certain other customary conditions. The revolving credit facility also provides for a subfacility of up to $100.0 for swing line borrowings and a subfacility of up to $150.0 for issuances of letters of credit. The Company is required to pay a facility fee on the aggregate commitments under the revolving credit facility, at a per annum rate ranging from 0.00% to 0.25%. The revolving credit facility is permitted to be used for general corporate purposes, including working capital, capital expenditures, funding of share repurchases and certain other payments, acquisitions and other investments. There were no balances outstanding on the Company's current revolving credit facility at September 30, 2020, and December 31, 2019. As of September 30, 2020, the effective interest rate on the revolving credit facility was 1.12%. The credit facility expires on September 15, 2022.

Under the term loan facility and the revolving credit facility, the Company is subject to negative covenants limiting subsidiary indebtedness and certain other covenants typical for investment grade-rated borrowers, and the Company is required to maintain certain leverage ratios. In May 2020, the Company entered into amendments to its term loan facility and its revolving credit facility, in each case to, among other things, increase the maximum leverage ratio covenant to 5.0x debt to last twelve months EBITDA for each of the three periods ended June 30, September 30, and December 31, 2020, and 4.5x for period ended March 31, 2021. From and including the period ending June 30, 2021, the maximum leverage ratio reverts back to 4.0x. The Company was in compliance with all covenants in the term loan facility and the revolving credit facility at September 30, 2020, and expects that it will remain in compliance with its existing debt covenants for the next twelve months.

The Company's availability of $997.0 at September 30, 2020, under its revolving credit facility reflects a reduction equivalent to the amount of the Company's outstanding letters of credit.

Liquidity

At September 30, 2020, the Company had $667.2 of cash and cash equivalents and $997.0 of available borrowings under its revolving credit facility, which does not mature until 2022, and the Company was in compliance with all of its debt covenants. In May 2020, in order to obtain increased financial covenant flexibility, the Company and its lenders entered into amendments

to the term loan facility and the revolving credit facility to increase the maximum leverage ratio to 5.0x debt to last twelve months EBITDA for the three month periods ending June 30, September 30 and December 31, 2020, and 4.5x for the period ended March 31, 2021. From and including the period ending June 30, 2021, the maximum leverage ratio reverts back to 4.0x. The amendments also provide that during any period in which the Company's leverage ratio exceeds 4.5x debt to last twelve months EBITDA (i) the Company will be prohibited from consummating share repurchases, subject to limited exceptions, (ii) borrowings under the revolving credit facility will accrue interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin of 1.25% or a base rate plus a margin of 0.25%, (iii) the facility fee that the Company is required to pay on the aggregate commitments under the revolving credit facility will be 0.25% per annum, and (iv) borrowings under the term loan facility will accrue interest at a per annum rate equal to, at the Company's election, either a LIBOR rate plus a margin of 1.175% or a base rate plus a margin of 0.175%.

The Company is closely monitoring the impact of the COVID-19 pandemic on all aspects of its business and the effects such impacts are having and will have on the Company's liquidity. The significance of the impact on the Company’s business is not yet certain and depends on numerous evolving factors that the Company may not be able to accurately predict.

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PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY

3 Months Ended

Sep. 30, 2020

Stockholders' Equity Note [Abstract]

Changes in common shares issued and held in treasury

The changes in common shares issued are summarized below:

	Issued and Outstanding
Common shares at December 31, 2019	97.2
Common stock issued under employee stock plans	0.8
Retirement of common stock	(0.6)
Common shares at September 30, 2020	97.4

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

The components of accumulated other comprehensive earnings (loss) are as follows:

	Foreign Currency Translation Adjustments		Net Benefit Plan Adjustments		Accumulated Other Comprehensive Earnings (Loss)
Balance as of December 31, 2019	$	(285.4)	$	(87.0)	$	(372.4)
Current year adjustments	52.4		7.5		59.9
Tax effect of adjustments	—		(2.1)		(2.1)
Balance as of September 30, 2020	$	(233.0)	$	(81.6)	$	(314.6)

Accumulated Other Comprehensive Income (Loss) [Line Items]

Preferred Stock and Common Shareholders' Equity

PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY

The Company is authorized to issue up to 265.0 shares of common stock, par value $0.10 per share. The Company is authorized to issue up to 30.0 shares of preferred stock, par value $0.10 per share. There were no preferred shares outstanding as of September 30, 2020, and December 31, 2019.

The changes in common shares issued are summarized below:

	Issued and Outstanding
Common shares at December 31, 2019	97.2
Common stock issued under employee stock plans	0.8
Retirement of common stock	(0.6)
Common shares at September 30, 2020	97.4

Share Repurchase Program

At the end of 2019, the Company had outstanding authorization from the board of directors to purchase $900.0 of Company common stock. During three months ended March 31, 2020, the Company purchased 0.6 shares of its common stock. When the Company repurchases shares, the amount paid to repurchase the shares in excess of the par or stated value is allocated to additional paid-in-capital unless subject to limitation or the balance in additional paid-in-capital is exhausted. Remaining amounts are recognized as a reduction in retained earnings. As of September 30, 2020, the Company had outstanding authorization from the board of directors to purchase up to $800.0 of the Company's common stock. The repurchase authorization has no expiration date. The Company reinstated its share repurchase program in October 2020 following the temporary suspension of stock repurchases beginning in March 2020 as a result of the anticipated impact of the COVID-19 pandemic.

Accumulated Other Comprehensive Earnings

     The components of accumulated other comprehensive earnings (loss) are as follows:

	Foreign Currency Translation Adjustments		Net Benefit Plan Adjustments		Accumulated Other Comprehensive Earnings (Loss)
Balance as of December 31, 2019	$	(285.4)	$	(87.0)	$	(372.4)
Current year adjustments	52.4		7.5		59.9
Tax effect of adjustments	—		(2.1)		(2.1)
Balance as of September 30, 2020	$	(233.0)	$	(81.6)	$	(314.6)

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INCOME TAXES

3 Months Ended

Sep. 30, 2020

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The Company does not recognize a tax benefit unless it concludes that it is more likely than not that the benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, the Company recognizes a tax benefit measured at the largest amount of the tax benefit that it believes is greater than 50% likely to be realized.

The gross unrecognized income tax benefits were $41.3 and $31.7 at September 30, 2020, and December 31, 2019, respectively. It is anticipated that the amount of the unrecognized income tax benefits will change within the next 12 months;

however, these changes are not expected to have a significant impact on the results of operations, cash flows or the financial position of the Company.

As of September 30, 2020, and December 31, 2019, $41.3 and $31.7, respectively, are the approximate amounts of gross unrecognized income tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods.

The Company recognizes interest and penalties related to unrecognized income tax benefits in income tax expense. Accrued interest and penalties related to uncertain tax positions totaled $9.0 and $5.5 as of September 30, 2020, and December 31, 2019, respectively.

The Company has substantially concluded all U.S. federal income tax matters for years through 2016. Substantially all material state and local and foreign income tax matters have been concluded through 2015 and 2011, respectively.

The Company has various state and foreign income tax examinations ongoing throughout the year. The Company believes adequate provisions have been recorded related to all open tax years.

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COMMITMENTS AND CONTINGENCIES

3 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

The Company is involved from time to time in various claims and legal actions, including arbitrations, class actions, and other litigation (including those described in more detail below), arising in the ordinary course of business. Some of these actions involve claims that are substantial in amount. These matters include, but are not limited to, intellectual property disputes; commercial and contract disputes; professional liability claims; employee-related matters; and inquiries, including subpoenas and other civil investigative demands, from governmental agencies, Medicare or Medicaid payers and MCOs reviewing billing practices or requesting comment on allegations of billing irregularities that are brought to their attention through billing audits or third parties. The Company receives civil investigative demands or other inquiries from various governmental bodies in the ordinary course of its business. Such inquiries can relate to the Company or other parties, including physicians and other health care providers. The Company works cooperatively to respond to appropriate requests for information.

The Company also is named from time to time in suits brought under the qui tam provisions of the False Claims Act and comparable state laws. These suits typically allege that the Company has made false statements and/or certifications in connection with claims for payment from U.S. federal or state healthcare programs. The suits may remain under seal (hence, unknown to the Company) for some time while the government decides whether to intervene on behalf of the qui tam plaintiff. Such claims are an inevitable part of doing business in the healthcare field today.

The Company believes that it is in compliance in all material respects with all statutes, regulations, and other requirements applicable to its commercial laboratory operations and drug development support services. The healthcare diagnostics and drug development industries are, however, subject to extensive regulation, and the courts have not interpreted many of the applicable statutes and regulations. Therefore, the applicable statutes and regulations could be interpreted or applied by a prosecutorial, regulatory, or judicial authority in a manner that would adversely affect the Company. Potential sanctions for violation of these statutes and regulations include significant civil and criminal penalties, fines, the loss of various licenses, certificates and authorizations, additional liabilities from third-party claims, and/or exclusion from participation in government programs.

Many of the current claims and legal actions against the Company are in preliminary stages, and many of these cases seek an indeterminate amount of damages. The Company records an aggregate legal reserve, which is determined using calculations based on historical loss rates and assessment of trends experienced in settlements and defense costs. In accordance with FASB Accounting Standards Codification Topic 450 “Contingencies,” the Company establishes reserves for judicial, regulatory, and arbitration matters outside the aggregate legal reserve if and when those matters present loss contingencies that are both probable and estimable and would exceed the aggregate legal reserve. When loss contingencies are not both probable and estimable, the Company does not establish separate reserves.

The Company is unable to estimate a range of reasonably probable loss for the proceedings described in more detail below in which damages either have not been specified or, in the Company's judgment, are unsupported and/or exaggerated and (i) the proceedings are in early stages; (ii) there is uncertainty as to the outcome of pending appeals or motions; (iii) there are significant factual issues to be resolved; and/or (iv) there are novel legal issues to be presented. For these proceedings, however, the Company does not believe, based on currently available information, that the outcomes will have a material adverse effect on the Company's financial condition, though the outcomes could be material to the Company's operating results for any particular period, depending, in part, upon the operating results for such period.

As previously reported, the Company responded to an October 2007 subpoena from the U.S. Department of Health & Human Services Office of Inspector General's regional office in New York. On August 17, 2011, the U.S. District Court for the

Southern District of New York unsealed a False Claims Act lawsuit, United States of America ex rel. NPT Associates v. Laboratory Corporation of America Holdings, which alleges that the Company offered UnitedHealthcare kickbacks in the form of discounts in return for Medicare business. The Plaintiff's Third Amended Complaint further alleges that the Company's billing practices violated the False Claims Acts of 14 states and the District of Columbia. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. Neither the U.S. government nor any state government has intervened in the lawsuit. The Company's Motion to Dismiss was granted in October 2014 and Plaintiff was granted the right to replead. On January 11, 2016, Plaintiff filed a motion requesting leave to file an amended complaint under seal and to vacate the briefing schedule for the Company's Motion to Dismiss, while the government reviews the amended complaint. The Court granted the motion and vacated the briefing dates. Plaintiff then filed the Amended Complaint under seal. The Company will vigorously defend the lawsuit.

In addition, the Company has received various other subpoenas since 2007 related to Medicaid billing. In October 2009, the Company received a subpoena from the State of Michigan Department of Attorney General seeking documents related to its billing to Michigan Medicaid. The Company cooperated with this request. In October 2013, the Company received a Civil Investigative Demand from the State of Texas Office of the Attorney General requesting documents related to its billing to Texas Medicaid. The Company cooperated with this request. On October 5, 2018, the Company received a second Civil Investigative Demand from the State of Texas Office of the Attorney General requesting documents related to its billing to Texas Medicaid. The Company is cooperating with this request.

On August 31, 2015, the Company was served with a putative class action lawsuit, Patty Davis v. Laboratory Corporation of America, et al., filed in the Circuit Court of the Thirteenth Judicial Circuit for Hillsborough County, Florida. The complaint alleges that the Company violated the Florida Consumer Collection Practices Act by billing patients who were collecting benefits under the Workers' Compensation Statutes. The lawsuit seeks injunctive relief and actual and statutory damages, as well as recovery of attorney's fees and legal expenses. In April 2017, the Circuit Court granted the Company’s Motion for Judgment on the Pleadings. The Plaintiff appealed the Circuit Court’s ruling to the Florida Second District Court of Appeal. On October 16, 2019, the Court of Appeal reversed the Circuit Court’s dismissal, but certified a controlling issue of Florida law to the Florida Supreme Court. On February 17, 2020, the Florida Supreme Court accepted jurisdiction of the lawsuit. The Court has scheduled oral arguments for December 9, 2020. The Company will vigorously defend the lawsuit.

In December 2014, the Company received a Civil Investigative Demand issued pursuant to the U.S. False Claims Act from the U.S. Attorney's Office for South Carolina, which requested information regarding alleged remuneration and services provided by the Company to physicians who also received draw and processing/handling fees from competitor laboratories Health Diagnostic Laboratory, Inc. (HDL) and Singulex, Inc. (Singulex). The Company cooperated with the request. On April 4, 2018, the U.S. District Court for the District of South Carolina, Beaufort Division, unsealed a False Claims Act lawsuit, United States of America ex rel. Scarlett Lutz, et al. v. Laboratory Corporation of America Holdings, which alleges that the Company's financial relationships with referring physicians violate federal and state anti-kickback statutes. The Plaintiffs' Fourth Amended Complaint further alleges that the Company conspired with HDL and Singulex in violation of the Federal False Claims Act and the California and Illinois insurance fraud prevention acts by facilitating HDL's and Singulex's offers of illegal inducements to physicians and the referral of patients to HDL and Singulex for laboratory testing. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. Neither the U.S. government nor any state government has intervened in the lawsuit. The Company filed a Motion to Dismiss seeking the dismissal of the claims asserted under the California and Illinois insurance fraud prevention statutes, the conspiracy claim, the reverse False Claims Act claim, and all claims based on the theory that the Company performed medically unnecessary testing. On January 16, 2019, the Court entered an order granting in part and denying in part the Motion to Dismiss. The Court dismissed the Plaintiffs' claims based on the theory that the Company performed medically unnecessary testing, the claims asserted under the California and Illinois insurance fraud prevention statutes, and the reverse False Claims Act claim. The Court denied the Motion to Dismiss as to the conspiracy claim. The Company will vigorously defend the lawsuit.

Prior to the Company's acquisition of Sequenom, Inc. (Sequenom) between August 15, 2016 and August 24, 2016, six putative class-action lawsuits were filed on behalf of purported Sequenom stockholders (captioned Malkoff v. Sequenom, Inc., et al., No. 16-cv-02054- JAH-BLM, Gupta v. Sequenom, Inc., et al., No. 16-cv-02084-JAH-KSC, Fruchter v. Sequenom, Inc., et al., No. 16-cv-02101- WQH-KSC, Asiatrade Development Ltd. v. Sequenom, Inc., et al., No. 16-cv-02113-AJB-JMA, Nunes v. Sequenom, Inc., et al., No. 16-cv-02128-AJB-MDD, and Cusumano v. Sequenom, Inc., et al., No. 16-cv-02134-LAB-JMA) in the U.S. District Court for the Southern District of California challenging the acquisition transaction. The complaints asserted claims against Sequenom and members of its board of directors (the Individual Defendants). The Nunes action also named the Company and Savoy Acquisition Corp. (Savoy), a wholly owned subsidiary of the Company, as defendants. The complaints alleged that the defendants violated Sections 14(e), 14(d)(4) and 20 of the Securities Exchange Act of 1934 by failing to

disclose certain allegedly material information. In addition, the complaints in the Malkoff action, the Asiatrade action, and the Cusumano action alleged that the Individual Defendants breached their fiduciary duties to Sequenom shareholders. The actions sought, among other things, injunctive relief enjoining the merger. On August 30, 2016, the parties entered into a Memorandum of Understanding (MOU) in each of the above-referenced actions. On September 6, 2016, the Court entered an order consolidating for all pre-trial purposes the six individual actions described above under the caption In re Sequenom, Inc. Shareholder Litig., Lead Case No. 16-cv-02054-JAH-BLM, and designating the complaint from the Malkoff action as the operative complaint for the consolidated action. On November 11, 2016, two competing motions were filed by two separate stockholders (James Reilly and Shikha Gupta) seeking appointment as lead plaintiff under the terms of the Private Securities Litigation Reform Act of 1995. On June 7, 2017, the Court entered an order declaring Mr. Reilly as the lead plaintiff and approving Mr. Reilly's selection of lead counsel. The parties agree that the MOU has been terminated. The Plaintiffs filed a Consolidated Amended Class Action Complaint on July 24, 2017, and the Defendants filed a Motion to Dismiss, which remains pending. On March 13, 2019, the Court stayed the action in its entirety pending the U.S. Supreme Court's anticipated decision in Emulex Corp. v. Varjabedian. On April 23, 2019, however, the U.S. Supreme Court dismissed the writ of certiorari in Emulex as improvidently granted. The Company will vigorously defend the lawsuit.

On March 10, 2017, the Company was served with a putative class action lawsuit, Victoria Bouffard, et al. v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Middle District of North Carolina. The complaint alleges that the Company's patient list prices unlawfully exceed the rates negotiated for the same services with private and public health insurers in violation of various state consumer protection laws. The lawsuit also alleges breach of implied contract or quasi-contract, unjust enrichment, and fraud. The lawsuit seeks statutory, exemplary, and punitive damages, injunctive relief, and recovery of attorney's fees and costs. In May 2017, the Company filed a Motion to Dismiss Plaintiffs' Complaint and Strike Class Allegations; the Motion to Dismiss was granted in March 2018 without prejudice. On October 10, 2017, a second putative class action lawsuit, Sheryl Anderson, et al. v. Laboratory Corporation of America Holdings, was filed in the U.S. District Court for the Middle District of North Carolina. The complaint contained similar allegations and sought similar relief to the Bouffard complaint, and added additional counts regarding state consumer protection laws. On August 10, 2018, the Plaintiffs filed an Amended Complaint, which consolidated the Bouffard and Anderson actions. On September 10, 2018, the Company filed a Motion to Dismiss Plaintiffs' Amended Complaint and Strike Class Allegations. On August 16, 2019, the Court entered an order granting in part and denying in part the Motion to Dismiss the Amended Complaint, and denying the Motion to Strike the Class Allegations. The Company will vigorously defend the lawsuit.

On April 1, 2019, Covance Research Products was served with a Grand Jury Subpoena issued by the Department of Justice (DOJ) in Miami, Florida requiring the production of documents related to the importation into the United States of live non-human primate shipments originating from or transiting through China, Cambodia, and/or Vietnam from April 1, 2014 through March 28, 2019. The Company is cooperating with the DOJ.

On May 14, 2019, Retrieval-Masters Creditors Bureau, Inc. d/b/a American Medical Collection Agency (AMCA), an external collection agency, notified the Company about a security incident AMCA experienced that may have involved certain personal information about some of the Company’s patients (the AMCA Incident). The Company referred patient balances to AMCA only when direct collection efforts were unsuccessful. The Company’s systems were not impacted by the AMCA Incident. Upon learning of the AMCA Incident, the Company promptly stopped sending new collection requests to AMCA and stopped AMCA from continuing to work on any pending collection requests from the Company. AMCA informed the Company that it appeared that an unauthorized user had access to AMCA’s system between August 1, 2018, and March 30, 2019, and that AMCA could not rule out the possibility that personal information on AMCA’s system was at risk during that time period. Information on AMCA’s affected system from the Company may have included name, address, and balance information for the patient and person responsible for payment, along with the patient’s phone number, date of birth, referring physician, and date of service. The Company was later informed by AMCA that health insurance information may have been included for some individuals, and because some insurance carriers utilize the Social Security Number as a subscriber identification number, the Social Security Number for some individuals may also have been affected. No ordered tests, laboratory test results, or diagnostic information from the Company were in the AMCA affected system. The Company notified individuals for whom it had a valid mailing address. For the individuals whose Social Security Number was affected, the notice included an offer to enroll in credit monitoring and identity protection services that will be provided free of charge for 24 months.

Twenty-three putative class action lawsuits were filed against the Company related to the AMCA Incident in various U.S. District Courts. Numerous similar lawsuits have been filed against other health care providers who used AMCA. These lawsuits have been consolidated into a multidistrict litigation in the District of New Jersey. On November 15, 2019, the Plaintiffs filed a Consolidated Class Action Complaint in the U.S. District Court of New Jersey. On January 22, 2020, the Company filed Motions to Dismiss all claims. The consolidated Complaint generally alleges that the Company did not adequately protect its

patients’ data and failed to timely notify those patients of the AMCA Incident. The Complaint asserts various causes of action, including but not limited to negligence, breach of implied contract, unjust enrichment, and the violation of state data protection statutes. The Complaint seeks damages on behalf of a class of all affected Company customers. The Company will vigorously defend the multi-district litigation.

The Company was served with a shareholder derivative lawsuit, Raymond Eugenio, Derivatively on Behalf of Nominal Defendant, Laboratory Corporation of America Holdings v. Lance Berberian, et al., filed in the Court of Chancery of the State of Delaware on April 23, 2020. The complaint asserts derivative claims on the Company’s behalf against the Company’s board of directors and certain executive officers. The complaint generally alleges that the defendants failed to ensure that the Company utilized proper cybersecurity safeguards and failed to implement a sufficient response to data security incidents, including the AMCA Incident. The complaint asserts derivative claims for breach of fiduciary duty and seeks relief including damages, certain disclosures, and certain changes to the Company’s internal governance practices. On June 2, 2020, the Company filed a Motion to Stay the lawsuit due to its overlap with the multi-district litigation referenced above. On July 2, 2020, the Company filed a Motion to Dismiss. On July 14, 2020, the Court entered an order staying the lawsuit pending the resolution of the multi-district litigation. The lawsuit will be vigorously defended.

Certain governmental entities have requested information from the Company related to the AMCA Incident. The Company received a request for information from the Office for Civil Rights (OCR) of the Department of Health and Human Services. On April 28, 2020, OCR notified the Company of the closure of its inquiry. The Company has also received requests from a multi-state group of state Attorneys General and is cooperating with these requests for information.

Three putative class action lawsuits related to California wage and hour laws have been served on the Company. On September 21, 2018, the Company was served with a putative class action lawsuit, Alma Haro v. Laboratory Corporation of America, et al., filed in the Superior Court of California, County of Los Angeles. On June 10, 2019, the Company was served with a putative class action lawsuit, Ignacio v. Laboratory Corporation of America, filed in Superior Court of California, County of Los Angeles. On July 1, 2019, the Company was served with a putative class action lawsuit, Jan v. Laboratory Corporation of America, filed in the Superior Court of California, County of Sacramento. All three lawsuits were subsequently removed to the U.S. District Court for the Central District of California, and then consolidated for all pre-trial proceedings. In the lawsuits, the Plaintiffs allege that employees were not properly paid overtime compensation, minimum wages, meal and rest break premiums, did not receive compliant wage statements, and were not properly paid wages upon termination of employment. The Plaintiffs assert these actions violate various California Labor Code provisions and constitute an unfair competition practice under California law. The lawsuits seek monetary damages, civil penalties, and recovery of attorney's fees and costs. On July 22, 2020, the Court issued an order granting preliminary approval of a settlement resolving all three lawsuits. If the settlement does not receive final approval, the Company will vigorously defend the lawsuits.

On July 30, 2019, the Company was served with a class action lawsuit, Mitchell v. Covance, Inc. et al., filed in the U.S. District Court for the Eastern District of Pennsylvania. Plaintiff alleges that certain individuals employed by Covance Inc. and Chiltern International Inc. were misclassified as exempt employees under the Fair Labor Standards Act and the Pennsylvania Minimum Wage Act and were thereby not properly paid overtime compensation. The lawsuit seeks monetary damages, liquidated damages, and recovery of attorneys’ fees and costs. On February 3, 2020, the Court denied without prejudice the Plaintiff's motion to conditionally certify a putative class action. On July 20, 2020, Plaintiff executed a settlement agreement resolving the lawsuit.

On January 31, 2020, the Company was served with a putative class action lawsuit, Luke Davis and Julian Vargas, et al. v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Central District of California. The lawsuit alleges that visually impaired patients are unable to use the Company's touchscreen kiosks at Company patient service centers in violation of the Americans with Disabilities Act and similar California statutes. The lawsuit seeks statutory damages, injunctive relief, and attorney's fees and costs. On March 20, 2020, the Company filed a Motion to Dismiss Plaintiffs' Complaint and to Strike Class Allegations. In August 2020, the Plaintiffs filed an Amended Complaint. The Company will vigorously defend the lawsuit.

On May 14, 2020, the Company was served with a putative class action lawsuit, Jose Bermejo v. Laboratory Corporation of America filed in the Superior Court of California, County of Los Angeles Central District, alleging that certain non-exempt California-based employees were not properly compensated for driving time or properly paid wages upon termination of employment. The Plaintiff asserts these actions violate various California Labor Code provisions and Section 17200 of the Business and Professional Code. The lawsuit seeks monetary damages, civil penalties, and recovery of attorney’s fees and costs. On June 15, 2020, the lawsuit was removed to the U.S. District Court for the Central District of California. On June 16, 2020, the Company was served with a Private Attorney General Act lawsuit by the same plaintiff in Jose Bermejo v. Laboratory

Corporation of America, filed in the Superior Court of California, County of Los Angeles Central District, alleging that certain Company practices violated California Labor Code penalty provisions related to unpaid and minimum wages, unpaid overtime, unpaid mean and rest break premiums, untimely payment of wages following separation of employment, failure to maintain accurate pay records, and non-reimbursement of business expenses. The second lawsuit seeks to recover civil penalties and recovery of attorney's fees and costs. The Company will vigorously defend both lawsuits.

On August 14, 2020, the Company was served with a Subpoena Duces Tecum issued by the State of Colorado Office of the Attorney General requiring the production of documents related to urine drug testing in all states. The Company is cooperating with this request.

On October 2, 2020, the Company was served with a putative class action lawsuit, Peterson v. Laboratory Corporation of America Holdings, filed in the U.S. District Court for the Northern District of New York, alleging claims for a failure to properly pay service representatives compensation for all hours worked and overtime under the Fair Labor Standards Act, as well as notice and recordkeeping claims under the New York Labor Code. The lawsuit seeks monetary damages, liquidated damages, equitable and injunctive relief, and recovery of attorney's fees and costs. The Company will vigorously defend the lawsuit.

On October 5, 2020, the Company was served with a putative class action lawsuit, Williams v. LabCorp Employer Services, Inc. et al, filed in the Superior Court of California, County of Los Angeles, alleging that certain non-exempt California-based employees were not properly compensated for work and overtime hours, not properly paid meal and rest break premiums, not reimbursed for certain business-related expenses, not properly paid for driving or wait times, and received inaccurate wage statements. The Plaintiff also asserts claims for unfair competition under Section 17200 of the Business and Professional Code. The lawsuit seeks monetary damages, liquidated damages, civil penalties, and recovery of attorney's fees and costs. The Company will vigorously defend the lawsuit.

Under the Company's present insurance programs, coverage is obtained for catastrophic exposure as well as those risks required to be insured by law or contract. The Company is responsible for the uninsured portion of losses related primarily to general, professional and vehicle liability, certain medical costs and workers' compensation. The self-insured retentions are on a per-occurrence basis without any aggregate annual limit. Provisions for losses expected under these programs are recorded based upon the Company's estimates of the aggregated liability of claims incurred.

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PENSION AND POSTRETIREMENT PLANS

3 Months Ended

Sep. 30, 2020

Postemployment Benefits [Abstract]

Pension And Postretirement Plans

PENSION AND POSTRETIREMENT PLANS

Retirement Plans

All employees eligible for the LCD defined-contribution retirement plan (LCD 401(k) Plan) receive a minimum 3% non-elective contribution (NEC) concurrent with each payroll period. Employees are not required to make a contribution to the LCD 401(k) Plan to receive the NEC. The NEC is non-forfeitable and vests immediately. The LCD 401(k) Plan also permits discretionary contributions by the Company of 1% to 3% of pay for eligible employees based on service. The Company incurred expense of $14.0 and $16.7 for the LCD 401(k) Plan during the three months ended September 30, 2020, and 2019, respectively, and $41.4 and $48.9 during the nine months ended September 30, 2020, and 2019, respectively.

All of the CDD U.S. employees are eligible to participate in the CDD 401(k) Plan, which is available on a voluntary basis and features a maximum 4.5% Company match, based upon a percentage of the employee’s contributions. The Company incurred expense of $21.0 and $18.2 for the Covance 401(k) plan during the three months ended September 30, 2020, and 2019, respectively, and $64.8 and $56.0 during the nine months ended September 30, 2020, and 2019, respectively.

The Company also maintains several other small 401(k) plans associated with companies acquired over the last several years.

Pension Plans

The Company has a defined-benefit retirement plan (Company Plan) and a nonqualified supplemental retirement plan (PEP). Both plans have been closed to new participants since December 31, 2009. Employees participating in the Company Plan and PEP no longer earn service-based credits, but continue to earn investment credits.

The Company Plan covers substantially all LCD employees employed prior to December 31, 2009. The benefits to be paid under the Company Plan are based on years of credited service through December 31, 2009, interest credits and average compensation. The Company's policy is to fund the Company Plan with at least the minimum amount required by applicable regulations.

The PEP covers a portion of the Company's senior management group. Prior to 2010, the PEP provided for the payment of the difference, if any, between the amount of any maximum limitation on annual benefit payments under the Employee Retirement Income Security Act of 1974 and the annual benefit that would be payable under the Company Plan but for such limitation. Effective January 1, 2010, employees participating in the PEP no longer earn service-based credits. The PEP is an unfunded plan.

The effect on operations for the Company Plan and the PEP is summarized as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Service cost for administrative expenses	$	1.3	$	1.1	$	3.9	$	3.1
Interest cost on benefit obligation	2.8		3.4		8.4		10.4
Expected return on plan assets	(3.7)		(3.7)		(11.2)		(11.3)
Net amortization and deferral	2.4		3.0		7.2		8.2
Defined benefit plan costs	$	2.8	$	3.8	$	8.3	$	10.4

The service cost component of net periodic pension cost and net periodic post-retirement benefit cost is included in operating expenses with other employee compensation costs. The other components of net benefit cost, including amortization or prior service cost/credit and settlement and curtailment effects are included in other, net non-operating expenses. During the nine months ended September 30, 2020, the Company made no contributions to the Company Plan. The related net pension obligation for the Company Plan and PEP was $92.6 and $93.4 as of September 30, 2020, and December 31, 2019, respectively.

As a result of the Covance acquisition, the Company sponsors two defined benefit pension plans for the benefit of its employees at two U.K. subsidiaries (U.K. Plans) and one defined benefit pension plan for the benefit of its employees at a German subsidiary (German Plan), all of which are legacy plans of previously acquired companies. The U.K. Plans were closed to future accrual as of December 31, 2019. Benefit amounts for all three plans are based upon years of service and compensation; however, the U.K. Plans were based on service and compensation through December 31, 2019. The German Plan is unfunded while the U.K. Plans are funded. The Company’s funding policy has been to contribute annually a fixed percentage of the eligible employee's salary, and additional amounts, at least equal to the local statutory funding requirements.

As a result of the Envigo acquisition, the Company assumed a defined benefit pension plan for the benefit of Envigo's U.K. employees (the Envigo Plan), which is a legacy plan of a company previously acquired by Envigo. The Envigo Plan is a funded plan that is closed to future accrual. The Company’s funding policy has been to contribute amounts at least equal to the local statutory funding requirements.

The related net pension obligation for these plans inclusive of the U.K. Plans, German Plan, and the Envigo Plan, was $85.4 and $99.1 as of September 30, 2020, and December 31, 2019, respectively.

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FAIR VALUE MEASUREMENTS

3 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

The Company’s population of financial assets and liabilities subject to fair value measurements as of September 30, 2020, and December 31, 2019, is as follows:

				Fair Value Measurements as of
		Fair Value as of		September 30, 2020
	Balance Sheet			Using Fair Value Hierarchy
	Classification	September 30, 2020		Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	15.4	$	—	$	15.4	$	—
Cross currency swaps	Other liabilities	8.8		—		8.8		—
Cash surrender value of life insurance policies	Other assets, net	82.9		—		82.9		—
Deferred compensation liability	Other liabilities	81.0		—		81.0		—
Contingent consideration	Other liabilities	9.0		—		—		9.0

				Fair Value Measurements as of
		Fair Value as of		December 31, 2019
	Balance Sheet			Using Fair Value Hierarchy
	Classification	December 31, 2019		Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	15.8	$	—	$	15.8	$	—
Cross currency swaps	Other assets, net	3.2		—		3.2		—
Interest rate swaps	Other assets, net	1.5		—		1.5		—
Cash surrender value of life insurance policies	Other assets, net	80.2		—		80.2		—
Deferred compensation liability	Other liabilities	76.7		—		76.7		—
Investment in equity securities	Other current assets	9.1		9.1		—		—
Contingent consideration	Other liabilities	9.9		—		—		9.9

Fair Value Measurement of Level 3 Liabilities	Contingent Consideration
Balance at December 31, 2019	$	9.9
Payments	(4.8)
Adjustments	(2.1)
Additions	6.0
Balance at September 30, 2020	$	9.0

The Company has a noncontrolling interest put related to its Ontario subsidiary that has been classified as mezzanine equity in the Company’s condensed consolidated balance sheets. The noncontrolling interest put is valued at its contractually determined value, which approximates fair value.

The Company offers certain employees the opportunity to participate in an employee-funded deferred compensation plan (DCP). A participant's deferrals are allocated by the participant to one or more of 16 measurement funds, which are indexed to externally managed funds. From time to time, to offset the cost of the growth in the participant's investment accounts, the Company purchases life insurance policies, with the Company named as beneficiary of the policies. Changes in the cash surrender value of the life insurance policies are based upon earnings and changes in the value of the underlying investments, which are typically invested in a similar manner to the participants' allocations. Changes in the fair value of the DCP obligation are derived using quoted prices in active markets based on the market price per unit multiplied by the number of units. The cash surrender value and the DCP obligations are classified within Level 2 because their inputs are derived principally from observable market data by correlation to the hypothetical investments.

Contingent acquisition consideration liabilities are measured at fair value using Level 3 valuations. These contingent consideration liabilities were recorded at fair value on the acquisition date and are remeasured quarterly based on the then assessed fair value and adjusted if necessary. The increases or decreases in the fair value of contingent consideration payable can result from changes in anticipated revenue levels and changes in assumed discount periods and rates. As the fair value measure is based on significant inputs that are not observable in the market, they are categorized as Level 3.

The carrying amounts of cash and cash equivalents, accounts receivable, income taxes receivable, and accounts payable are considered to be representative of their respective fair values due to their short-term nature. The fair market value of the Senior Notes, based on market pricing, was approximately $6,107.9 and $6,140.6 as of September 30, 2020, and December 31, 2019, respectively. The Company's note and debt instruments are classified as Level 2 instruments, as the fair market values of these instruments are determined using other observable inputs.

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

3 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments, Gain (Loss) [Table Text Block]

The table below provides information regarding the location and amount of pretax (gains) losses of derivatives designated in fair value hedging:

	Amount of pre-tax gain/(loss) included in other comprehensive income				Amounts reclassified to the Statement of Operations				Amount of pre-tax gain/(loss) included in other comprehensive income				Amounts reclassified to the Statement of Operations
	Three Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019		2020		2019		2020		2019
Interest rate swap contracts	$	—	$	0.4	$	1.6	$	—	$	0.8	$	7.2	$	1.6	$	—
Cross currency swaps	$	(23.1)	$	18.8	$	—	$	—	$	(12.0)	$	22.8	$	—	$	—

Derivative Instruments And Hedging Activities

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

The Company addresses its exposure to market risks, principally the market risk associated with changes in interest rates and foreign currency exchange rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments. The Company does not hold or issue derivative financial instruments for trading purposes. The Company does not believe that its exposure to market risk is material to the Company’s financial position or results of operations.

Interest Rate Swap

On August 17, 2020, the Company redeemed its remaining $412.2 4.625% Senior Notes due November 15, 2020, using available cash on hand. The Company exited the remaining fixed-to-variable interest rate swap arrangement in August 2020, in connection with the redemption of the 4.625% Senior Notes due 2020.

	Carrying amount of hedged liabilities as of				Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liabilities as of
	September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
Balance Sheet Line Item in which Hedged Items are Included
Current portion, long term debt	$	—	$	301.5	$	—	$	1.5

Cross Currency Swap

During the fourth quarter of 2018, the Company entered into six U.S. Dollar to Swiss Franc cross-currency swap agreements with an aggregate notional value of $600.0 and which are accounted for as a hedge against the impact of foreign exchange movements on its net investment in a Swiss subsidiary. Of the notional value, $300.0 matures in 2022 and $300.0 matures in 2025. These cross currency swaps maturing in 2022 and 2025 are included in other long-term assets as of September 30, 2020. Changes in the fair value of the cross-currency swaps are recorded as a component of the foreign currency translation adjustment in accumulated other comprehensive income in the Condensed Consolidated Balance Sheet until the hedged item is recognized in earnings. The cumulative amount of the fair value hedging adjustment included in the current value of the cross currency swaps was $(23.1) and $(12.0) for the three and nine months ended September 30, 2020, respectively, and was recognized as currency translation within the Condensed Consolidated Statement of Comprehensive Earnings. There were no amounts reclassified from the Condensed Consolidated Statement of Comprehensive Earnings to the Condensed Consolidated Statement of Operations during the three months or nine months ended September 30, 2020.

The table below presents the fair value of derivatives on a gross basis and the balance sheet classification of those instruments:

		September 30, 2020						December 31, 2019
		Fair Value of Derivative						Fair Value of Derivative
	Balance Sheet Caption	Asset		Liability		U.S. Dollar Notional		Asset		Liability		U.S. Dollar Notional
Derivatives Designated as Hedging Instruments
Interest rate swap	Prepaid expenses and other/Other liabilities	$	—	$	—	$	—	$	1.5	$	—	$	300.0
Cross currency swaps	Other assets, net or Other liabilities	$	—	$	8.8	$	600.0	$	3.2	$	—	$	600.0

The table below provides information regarding the location and amount of pretax (gains) losses of derivatives designated in fair value hedging:

	Amount of pre-tax gain/(loss) included in other comprehensive income				Amounts reclassified to the Statement of Operations				Amount of pre-tax gain/(loss) included in other comprehensive income				Amounts reclassified to the Statement of Operations
	Three Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019		2020		2019		2020		2019
Interest rate swap contracts	$	—	$	0.4	$	1.6	$	—	$	0.8	$	7.2	$	1.6	$	—
Cross currency swaps	$	(23.1)	$	18.8	$	—	$	—	$	(12.0)	$	22.8	$	—	$	—

The Company recorded a gain of $1.6 on the extinguishment of the interest rate swap arrangement, which was included in Other, net on the Condensed Consolidated Statement of Operations. No additional gains or losses from derivative instruments have been recognized into income for the three and nine months ended September 30, 2020, and 2019.

Schedule of Derivative Instruments [Table Text Block]

The table below presents the fair value of derivatives on a gross basis and the balance sheet classification of those instruments:

		September 30, 2020						December 31, 2019
		Fair Value of Derivative						Fair Value of Derivative
	Balance Sheet Caption	Asset		Liability		U.S. Dollar Notional		Asset		Liability		U.S. Dollar Notional
Derivatives Designated as Hedging Instruments
Interest rate swap	Prepaid expenses and other/Other liabilities	$	—	$	—	$	—	$	1.5	$	—	$	300.0
Cross currency swaps	Other assets, net or Other liabilities	$	—	$	8.8	$	600.0	$	3.2	$	—	$	600.0

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BUSINESS ACQUISITIONS

9 Months Ended

Sep. 30, 2020

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

BUSINESS ACQUISITIONS AND DISPOSITIONS During the nine months ended September 30, 2020, the Company acquired various business and related assets for approximately $208.8 in cash (including contingent consideration of $6.0 and net of cash acquired), $113.4 within LCD and $95.4 within CDD. The purchase consideration for all acquisitions in the nine months ended September 30, 2020, has been allocated under the acquisition method of accounting to the estimated fair market value of the net assets acquired, including approximately $88.5 in identifiable intangible assets and a residual amount of non-tax deductible goodwill of approximately $128.9. The amortization periods for intangible assets acquired from these businesses range from 5 to 15 years for customer relationships and non-compete agreements. These acquisitions were made primarily to extend the Company's geographic reach in important market areas, enhance the Company's scientific differentiation and to expand the breadth and scope of the

Company's CRO services. The excess of the fair value of the consideration conveyed over the fair value of the net assets acquired was recorded as goodwill. The goodwill reflects the Company's expectations to utilize the acquired businesses' workforce and established relationships and the benefits of being able to leverage operational efficiencies with favorable growth opportunities in these markets.

These acquisitions contributed $13.1 and $13.8 of revenue during the three and nine months ended September 30, 2020, respectively. The acquisitions contributed $3.5 and $3.6 of operating income, during the three and nine months ended September 30, 2020, respectively.

During the nine months ended September 30, 2019, the Company acquired various businesses and related assets for approximately $852.9 in cash (net of cash acquired), $647.4 within CDD and $205.5 within LCD. The purchase consideration for all acquisitions in the nine months ended September 30, 2019, has been allocated to the estimated fair market value of the net assets acquired, including approximately $324.1 in identifiable intangible assets and a residual amount of non-tax deductible goodwill for approximately $512.3. The amortization periods for intangible assets acquired from these businesses range from 11 to 15 years for customer relationships. These acquisitions were made primarily to extend the Company's geographic reach in important market areas, enhance the Company's scientific differentiation and to expand the breadth and scope of the Company's CRO services. The excess of the fair value of the consideration conveyed over the fair value of the net assets acquired was recorded as goodwill. The goodwill reflects the Company's expectations to utilize the acquired businesses' workforce and established relationships and the benefits of being able to leverage operational efficiencies with favorable growth opportunities in these markets.

On June 3, 2019, CDD acquired Envigo's nonclinical contract research services business, expanding CDD's global nonclinical drug development capabilities with additional locations and resources. Additionally, the Company divested the Covance Research Products business (CRP), which was a part of CDD, to Envigo. As part of this sale, CDD entered into a multi-year, renewable supply agreement with Envigo. The Company paid cash consideration of $601.0 (which is included in the nine month acquisition numbers above), received a floating rate secured note of $110.0, and recorded a loss on the sale of CRP of $12.2. The Company funded the transaction through a new term loan facility.

The final valuation of acquired assets and assumed liabilities in the transaction as of June 3, 2019, include the following:

Consideration Transferred
Cash consideration	$	601.0
Fair value of CRP	110.0
Total	$	711.0
	Final June 30, 2020
Net Assets Acquired
Cash and cash equivalents	$	11.3
Accounts receivable	12.1
Unbilled services	25.6
Inventories	4.5
Prepaid expenses and other	10.8
Property, plant and equipment	128.4
Deferred income taxes	25.2
Goodwill	376.6
Customer relationships	140.8
Trade name and trademarks	0.6
Other assets	9.9
Total assets acquired	745.8
Accounts payable	15.2
Accrued expenses and other	10.4
Unearned revenue	49.9
Other liabilities	69.3
Total liabilities acquired	144.8
Net Envigo assets acquired	601.0
Floating rate secured note receivable due 2022	110.0
Total	$	711.0

The final purchase consideration for Envigo has been allocated to the estimated fair market value of the net assets acquired, including approximately $141.4 in identifiable intangible assets and a residual amount of non-tax-deductible goodwill of approximately $376.6. The amortization period for intangible assets acquired is 11 years for customer relationships.

Unaudited Pro Forma Information

Had the Company's total 2019 and 2020 acquisitions been completed as of January 1, 2018, or January 1, 2019, respectively, the Company's pro forma results would have been as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Revenues	$	3,899.7	$	2,969.0	$	9,524.2	$	8,827.7
Net earnings attributable to Laboratory Corporation of America Holdings	$	744.9	$	224.3	$	666.3	$	612.9

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BUSINESS SEGMENT INFORMATION Business Segment information (Notes)

3 Months Ended

Sep. 30, 2020

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

BUSINESS SEGMENT INFORMATION

The following table is a summary of segment information for the three and nine months ended September 30, 2020, and 2019. The management approach has been used to present the following segment information. This approach is based upon the way the management of the Company organizes segments within an enterprise for making operating decisions and assessing performance. Financial information is reported on the basis that it is used internally by the chief operating decision maker (CODM) for evaluating segment performance and deciding how to allocate resources to segments. The Company’s chief executive officer has been identified as the CODM.

Segment asset information is not presented because it is not used by the CODM at the segment level. Operating earnings of each segment represents revenues less directly identifiable expenses to arrive at operating income for the segment. General management and administrative corporate expenses are included in general corporate expenses below.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Revenues:
LCD	$	2,704.2	$	1,759.2	$	6,098.8	$	5,242.1
CDD	1,241.9		1,175.4		3,479.4		3,376.4
Intercompany eliminations and other	(50.0)		(6.2)		(90.0)		(17.1)
Revenues	3,896.1		2,928.5		9,488.7		8,601.4
Operating earnings (loss):
LCD	964.9		262.2		1,451.5		843.0
CDD	142.0		123.8		(131.2)		277.6
General corporate expenses	(59.8)		(46.1)		(168.2)		(126.8)
Total operating income	1,047.1		339.9		1,152.2		993.8
Non-operating expenses, net	(100.0)		(52.5)		(175.7)		(181.8)
Earnings before income taxes	947.1		287.4		976.4		812.0
Provision for income taxes	243.4		66.4		358.0		214.4
Net earnings	703.7		221.0		618.4		597.6
Less: Net earnings attributable to the noncontrolling interest	(0.3)		(0.3)		(0.6)		(0.9)
Net earnings attributable to Laboratory Corporation of America Holdings	$	703.4	$	220.7	$	617.8	$	596.7

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BASIS OF FINANCIAL STATEMENT PRESENTATION Use of Estimates (Policies)

3 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

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

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.

Recently Adopted Accounting Guidance [Policy Text Block]

Recently Adopted Guidance

In June 2016, the FASB issued a new accounting standard intended to provide financial statement users with more decision-useful information about expected credit losses and other commitments to extend credit held by the reporting entity. The standard replaces the incurred loss impairment methodology in current generally accepted accounting principles (GAAP) with one that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company recorded an opening retained earnings adjustment of $7.0 with the adoption of this standard on January 1, 2020.

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on fair value measurements. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

In August 2018, the FASB issued a new accounting standard to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred

to develop or obtain internal-use software. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

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BASIS OF FINANCIAL STATEMENT PRESENTATION New Accounting Pronouncements (Policies)

3 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on defined benefit pension and other postretirement plans. The standard is effective on January 1, 2021, with early adoption permitted. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In December 2019, the FASB issued a new accounting standard to simplify accounting for income taxes and remove, modify, and add to the disclosure requirements of income taxes. The standard is effective January 1, 2021, with early adoption permitted. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In January 2020, the FASB issued a new accounting standard to clarify the interaction of the accounting for equity securities and investments accounted for under the equity method of accounting and the accounting for certain forward contracts and purchased options. The standard is effective January 1, 2021. The adoption of this standard is not expected to have a material impact on the consolidated financial statements.

In March 2020, the FASB issued a new accounting standard to provide optional expedients and exceptions if certain conditions are met for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. The expedients and exceptions in the standard are effective between March 12, 2020, and December 31, 2022. The Company did not elect to apply any of the expedients or exceptions for the period ended September 30, 2020, and is currently evaluating the impact this new standard will have on the consolidated financial statements.

In August 2020, the FASB issued a new accounting standard to address issues identified as a result of the complexity associated with applying generally accepted accounting principles for convertible instruments and contracts in an entity's own equity. The standard is effective January 1, 2022, with early adoption permitted. The Company is evaluating the impact this new standard will have on the consolidated financial statements.

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BASIS OF FINANCIAL STATEMENT PRESENTATION Novel Coronavirus (COVID-19) Financial Statement Impact (Policies)

3 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Novel Coranvirus (Covid-19) Financial Statement Impact [Policy Text Block]

Novel Coronavirus (COVID-19) Financial Statement Impact

In March 2020, COVID-19 was declared a pandemic. COVID-19 has had and continues to have an extensive impact on the global health and economic environments. During the nine months ended September 30, 2020, the Company recorded goodwill and other asset impairment charges of $437.4, as a result of the negative financial impact of COVID-19 during the first quarter of 2020. See Note 6 Goodwill and Intangible Assets for a discussion of goodwill and intangible asset impairment and Note 2 Revenues for a discussion of credit losses and additional price concessions. The Company also impaired certain of the Company's investments by a total of $25.4 during the nine months ended September 30, 2020, due to the impact of COVID-19; $7.1 was included in Equity method earnings (loss), net during the three months ended March 31, 2020, and $13.1 and $5.2 were included in Other, net during the three months ended March 31, 2020, and June 30, 2020, respectively.

In April 2020, the Company received cash payments of approximately $55.9 from the Public Health and Social Services Emergency Fund for provider relief that was appropriated by Congress to the Department of Health and Human Services (HHS) in the Coronavirus Aid, Relief, and Economic Security Act (CARES Act Provider Relief Funds). Upon receiving and satisfying the terms and conditions associated with the distributed funds, the Company accounted for the transaction by applying the guidance in ASC 450-30 Gain Contingencies, and recorded these funds in Other, net non-operating income in the Consolidated Statement of Operations as of June 30, 2020. In August 2020, the Company received an additional $76.2 in CARES Act Provider Relief Funds. As the Company's Diagnostic business demonstrated recovery and demand for COVID-19 testing increased, the Company determined that the negative financial impact of COVID-19 which the CARES Act Provider Relief Funds were designed to address no longer applied to the Company. As a result, the Company derecognized the income associated with the $55.9 received during the second quarter as a change in estimate and did not recognize any income related to the cash payment of $76.2 received in the third quarter. The Company plans to return the CARES Act Provider Relief Funds to the government in the fourth quarter of 2020 and has recorded a liability of $132.1 in Accrued expenses and other as of September 30, 2020.

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BASIS OF FINANCIAL STATEMENT PRESENTATION Recently Adopted Accounting Standards (Policies)

3 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Recently Adopted Accounting Guidance [Policy Text Block]

Recently Adopted Guidance

In June 2016, the FASB issued a new accounting standard intended to provide financial statement users with more decision-useful information about expected credit losses and other commitments to extend credit held by the reporting entity. The standard replaces the incurred loss impairment methodology in current generally accepted accounting principles (GAAP) with one that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company recorded an opening retained earnings adjustment of $7.0 with the adoption of this standard on January 1, 2020.

In August 2018, the FASB issued a new accounting standard to reduce, modify, and add to the disclosure requirements on fair value measurements. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

In August 2018, the FASB issued a new accounting standard to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred

to develop or obtain internal-use software. The Company adopted this standard effective January 1, 2020. The adoption of this standard did not have a material impact on the consolidated financial statements.

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Intangible Assets, Goodwill and Other (Policies)

3 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets, Goodwill, Policy

GOODWILL AND INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the nine months ended September 30, 2020, are as follows:

	LCD		CDD		Total
Balance as of December 31, 2019	$	3,721.5	$	4,143.5	$	7,865.0
Goodwill acquired during the period	66.1		73.0		139.1
Impairment	(3.7)		(418.7)		(422.4)
Foreign currency impact and other adjustments to goodwill	(2.2)		34.3		32.1
Balance as of September 30, 2020	$	3,781.7	$	3,832.1	$	7,613.8

The Company assesses goodwill and indefinite-lived intangibles for impairment at least annually or whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Based upon the revised forecasted revenues and operating income following the declaration of the COVID-19 global pandemic, management concluded there was a triggering event and updated its annual 2019 goodwill impairment testing as of March 31, 2020, for its CDD reporting units and its LCD reporting units. Based on the quantitative impairment assessment, the Company concluded that the fair value was less than carrying value for two of its reporting units, including one where the 2019 fair value exceeded carrying value by approximately 10.0%, and recorded a goodwill impairment of $418.7 for the CDD segment and $3.7 for LCD segment.

The Company utilized a combination of income and market approaches to determine the fair value of the CDD reporting units. Based upon the results of the quantitative assessments, the Company concluded that the fair value was less than its carrying value for one of the CDD reporting units. A non-cash charge of $418.7 was recognized and included in goodwill and other asset impairments on the Consolidated Statement of Operations to reduce the carrying amount of goodwill for the CDD reporting unit to fair value. Following the impairment charge, the carrying value of goodwill for this reporting unit is $1,627.5 as of September 30, 2020. The other CDD reporting unit evaluated indicated a fair value that exceeded carrying value by less than 10.0%. Management notes that a +1.0% change in the discount rate in the March 31, 2020 analysis would reduce the headroom to approximately 2.0%. Goodwill for this reporting unit as of September 30, 2020 is $646.2.

The Company utilized the income approach to determine the fair value of the LCD reporting units. Based upon the results of the quantitative assessments, the Company concluded the fair value of one of the reporting units was less than its carrying value. A non-cash charge of $3.7 was recognized and included in goodwill and other asset impairments on the Consolidated Statement of Operations to reduce the carrying amount of goodwill for this LCD reporting unit to zero. The other LCD reporting unit evaluated indicated a fair value that exceeded carrying value by less than 10.0%. Management notes that a +1.0% change in the discount rate in the March 31, 2020 analysis would cause the fair value to be less than carrying value and would result in an impairment of approximately $40.0. Goodwill and indefinite-lived intangibles of Canadian licenses for this reporting unit as of September 30, 2020, were $86.0 and $468.4, respectively.

Although the Company believes that the current assumptions and estimates used in its goodwill analysis are reasonable, supportable, and appropriate, continued efforts to maintain or improve the performance of these businesses could be impacted by unfavorable or unforeseen changes which could impact the existing assumptions used in the impairment analysis. Various factors could reasonably be expected to unfavorably impact existing assumptions: primarily delays in new customer bookings and the related delay in revenue from new customers, increases in customer termination activity or increases in operating costs. In addition, given the ongoing and rapidly changing nature of the COVID-19 pandemic, there is significant uncertainty

regarding the duration and severity of the pandemic as well as any future government restrictions, which may unfavorably impact existing assumptions. Accordingly, there can be no assurance that the estimates and assumptions made for the purposes of the goodwill impairment analysis will prove to be accurate predictions of future performance. 

The Company will continue to monitor the financial performance of and assumptions for its reporting units. Management's impairment analysis utilizes significant judgments and assumptions related to the market comparable method analysis, such as selected market multiples, and those related to cash flow projections, such as revenue and terminal growth rates, projected operating margin, and the discount rate. A significant increase in the discount rate, decrease in the revenue and terminal growth rates, decreased operating margin, or substantial reductions in end markets and volume assumptions, could have a negative impact on the estimated fair value of the reporting units. A future impairment charge for goodwill or intangible assets could have a material effect on the Company's consolidated financial position and results of operations.

The components of identifiable intangible assets are as follows:

	September 30, 2020						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	4,530.7	$	(1,473.1)	$	3,057.6	$	4,441.7	$	(1,329.5)	$	3,112.2
Patents, licenses and technology	427.7		(245.3)		182.4		453.6		(235.7)		217.9
Non-compete agreements	105.3		(67.6)		37.7		90.9		(60.5)		30.4
Trade name	410.2		(240.1)		170.1		408.2		(219.9)		188.3
Land use right	10.8		(6.5)		4.3		10.9		(5.5)		5.4
Canadian licenses	468.4		—		468.4		480.3		—		480.3
	$	5,953.1	$	(2,032.6)	$	3,920.5	$	5,885.6	$	(1,851.1)	$	4,034.5

The Company recorded non-cash charges of $30.5 for the impairment of identifiable intangible assets during the nine months ended September 30, 2020, within CDD. During the three months ended March 31, 2020, a $2.7 impairment charge was recorded for a tradename. During the three months ended September 30, 2020, additional impairment charges of $10.1 and $17.7 for customer relationships and technology intangible assets, respectively were recorded due to the loss of a contract from a prior acquisition.

Amortization of intangible assets for the three months ended September 30, 2020, and 2019, was $62.2 and $61.7, respectively and for the nine months ended September 30, 2020, and 2019 was $184.6 and $179.0, respectively. Amortization expense for the net carrying amount of intangible assets is estimated to be $60.0 for the remainder of fiscal 2020, $238.5 in fiscal 2021, $232.6 in fiscal 2022, $229.5 in fiscal 2023, $224.6 in fiscal 2024, and $2,380.2 thereafter.

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Revenue from Contract with Customer (Policies)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Revenue

REVENUES

The Company's revenues by segment payers/customer groups for the three and nine months ended September 30, 2020, and 2019, were as follows:

	For the Three Months Ended September 30, 2020
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	21	%	1	%	—	%	—	%	—	%	—	%	22	%
Patients	5	%	—	%	—	%	—	%	—	%	—	%	5	%
Medicare and Medicaid	7	%	—	%	—	%	—	%	—	%	—	%	7	%
Third-party	33	%	1	%	—	%	—	%	—	%	—	%	34	%
Total LCD revenues by payer	66	%	2	%	—	%	—	%	—	%	—	%	68	%
CDD
Biopharmaceutical and medical device companies	16	%	—	%	4	%	4	%	2	%	6	%	32	%
Total revenues	82	%	2	%	4	%	4	%	2	%	6	%	100	%

	For the Three Months Ended September 30, 2019
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	16	%	1	%	—	%	—	%	—	%	—	%	17	%
Patients	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Medicare and Medicaid	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Third-party	25	%	2	%	—	%	—	%	—	%	—	%	27	%
Total LCD revenues by payer	57	%	3	%	—	%	—	%	—	%	—	%	60	%
CDD
Biopharmaceutical and medical device companies	21	%	—	%	5	%	4	%	3	%	7	%	40	%
Total revenues	78	%	3	%	5	%	4	%	3	%	7	%	100	%

	For the Nine Months Ended September 30, 2020
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	19	%	1	%	—	%	—	%	—	%	—	%	20	%
Patients	6	%	—	%	—	%	—	%	—	%	—	%	6	%
Medicare and Medicaid	7	%	—	%	—	%	—	%	—	%	—	%	7	%
Third-party	29	%	1	%	—	%	—	%	—	%	—	%	30	%
Total LCD revenues by payer	61	%	2	%	—	%	—	%	—	%	—	%	63	%
CDD
Biopharmaceutical and medical device companies	18	%	—	%	5	%	4	%	3	%	7	%	37	%
Total revenues	79	%	2	%	5	%	4	%	3	%	7	%	100	%

	For the Nine Months Ended September 30, 2019
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	16	%	1	%	—	%	—	%	—	%	—	%	17	%
Patients	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Medicare and Medicaid	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Third-party	26	%	2	%	—	%	—	%	—	%	—	%	28	%
Total LCD revenues by payer	58	%	3	%	—	%	—	%	—	%	—	%	61	%
CDD
Biopharmaceutical and medical device companies	20	%	—	%	4	%	5	%	3	%	7	%	39	%
Total revenues	78	%	3	%	4	%	5	%	3	%	7	%	100	%

Contract costs

CDD incurs sales commissions in the process of obtaining contracts with customers, which are recoverable through the service fees in the contract. Sales commissions that are payable upon contract award are recognized as assets and amortized over the expected contract term, along with related payroll tax expense. The amortization of commission expense is based on the weighted average contract duration for all commissionable awards in the respective business in which the commission expense is paid, which approximates the period over which goods and services are transferred to the customer. The amortization period of sales commissions ranges from approximately 1 to 5 years, depending on the business. For businesses that enter into primarily short-term contracts, the Company applies the practical expedient, which allows costs to obtain a contract to be expensed when incurred if the amortization period of the assets that would otherwise have been recognized is one year or less. Amortization of assets from sales commissions is included in selling, general, and administrative expense.

CDD incurs costs to fulfill contracts with customers, which are recoverable through the service fees in the contract. Contract fulfillment costs include software implementation costs and setup costs for certain market access solutions. These costs are recognized as assets and amortized over the expected term of the contract to which the implementation relates, which is the period over which services are expected to be provided to the customer. This period typically ranges from 2 to 5 years. Amortization of deferred contract fulfillment costs is included in cost of goods sold.

	September 30, 2020		December 31, 2019
Sales commission assets	$	32.8	$	28.6
Deferred contract fulfillment costs	12.9		14.9
Total	$	45.7	$	43.5

Amortization related to sales commission assets and associated payroll taxes for the three months ended September 30, 2020, and 2019, was $6.0 and $5.8, respectively, and for the nine months ended September 30, 2020, and 2019, was $16.8 and $15.3, respectively. Amortization related to deferred contract fulfillment costs for the three months ended September 30, 2020,

and 2019, was $2.3 and $2.3, respectively, and was $7.6 and $6.1, respectively, for the nine months ended September 30, 2020, and 2019.

Receivables, Unbilled Services and Unearned Revenue

Unbilled services are comprised primarily of unbilled receivables, but also include contract assets. A contract asset is recorded when a right to payment has been earned for work performed, but billing and payment for that work is determined by certain contractual milestones, whereas unbilled receivables are billable upon the passage of time. While CDD attempts to negotiate terms that provide for billing and payment of services prior or in close proximity to the provision of services, this is not always possible and there are fluctuations in the level of unbilled services and unearned revenue from period to period. The following table provides information about receivables, unbilled services, and unearned revenue (contract liabilities) from contracts with customers for CDD.

	September 30, 2020		December 31, 2019
Receivables, which are included in accounts receivable	$	834.0	$	771.1
Unbilled services	609.8		483.7
Unearned revenue	492.9		449.2

Revenues recognized during the period, that were included in the unearned revenue balance at the beginning of the period for the nine months ended September 30, 2020, and September 30, 2019, were $237.2 and $232.8, respectively.

Credit Loss Rollforward

With the adoption of the current expected credit loss standard in 2020, the Company estimates future expected losses on accounts receivable, unbilled services and notes receivable over the remaining collection period of the instrument. The rollforward for the allowance for credit losses for the nine months ended September 30, 2020, is as follows:

	For the Nine Months Ended September 30, 2020
	Accounts Receivable		Unbilled Services		Note and Other Receivables		Total
Allowance for credit losses as of December 31, 2019	$	19.0	$	2.3	$	—	$	21.3
Current expected credit losses opening balance impact on retained earnings	1.8		0.2		5.0		7.0
Plus, credit loss expense	10.0		3.9		0.7		14.6
Less, write offs	4.2		0.1		—		4.3
Ending allowance for credit losses	$	26.6	$	6.3	$	5.7	$	38.6

Notes and other receivables includes the $110.0 due 2022 from the Envigo transaction which is recorded in Other assets, net. During the three months ended September 30, 2020, the Company recorded an impairment for a note receivable related to an LCD investment of $0.7.

Performance Obligations Under Long-Term Contracts

Long-term contracts at the Company consist primarily of fully managed clinical studies within CDD. The amount of existing performance obligations under such long-term contracts unsatisfied as of September 30, 2020, was $4,795.0. The Company expects to recognize approximately 32% of the remaining performance obligations as of September 30, 2020, as revenue over the next 12 months, and the balance thereafter. The Company's long-term contracts generally range from 1 to 8 years.

Within CDD, revenues of $44.8 and $67.7 were recognized during the nine months ended September 30, 2020, and 2019, respectively, from performance obligations that were satisfied in previous periods. This revenue comes from adjustments related to changes in scope and estimates in full service clinical studies.

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EARNINGS PER SHARE (Tables)

3 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Reconciliation of Basic earnings per Share to Diluted Earnings per Share

The following represents a reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended September 30,										Nine Months Ended September 30,
	2020					2019					2020					2019
	Earnings		Shares	Per Share Amount		Earnings		Shares	Per Share Amount		Earning		Shares	Per Share Amount		Earnings		Shares	Per Share Amount
Basic earnings per share:
Net earnings	$	703.4	97.4	$	7.22	$	220.7	97.6	$	2.26	$	617.8	97.3	$	6.35	$	596.7	98.1	$	6.08
Dilutive effect of employee stock options and awards	—		0.7			—		0.7			—		0.6			—		0.7
Net earnings including impact of dilutive adjustments	$	703.4	98.1	$	7.17	$	220.7	98.3	$	2.25	$	617.8	97.9	$	6.31	$	596.7	98.8	$	6.04

Potential common shares not included in computation of diluted earnings per share

The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Employee stock options and awards	0.2	0.2	0.4	0.2

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RESTRUCTURING AND OTHER SPECIAL CHARGES Restructuring and Other Special Charges Detail (Tables)

9 Months Ended

Sep. 30, 2020

Restructuring Cost and Reserve [Line Items]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following represents the Company’s restructuring reserve activities for the period indicated:

	LCD				CDD
	Severance and Other Employee Costs		Facility Costs		Severance and Other Employee Costs		Facility Costs		Total
Balance as of December 31, 2019	$	0.5	$	2.7	$	5.5	$	4.7	$	13.4
Restructuring charges	3.9		5.2		8.9		6.7		24.7
Impairment of lab facility and equipment	—		5.8		—		17.3		23.1
Cash payments and other adjustments	(4.4)		(12.2)		(10.4)		(23.8)		(50.8)
Balance as of September 30, 2020	$	—	$	1.5	$	4.0	$	4.9	$	10.4
Current									$	8.1
Non-current									2.3
									$	10.4

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GOODWILL AND INTANGIBLE ASSETS (Tables)

3 Months Ended

9 Months Ended

Sep. 30, 2020

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the nine months ended September 30, 2020, are as follows:

	LCD		CDD		Total
Balance as of December 31, 2019	$	3,721.5	$	4,143.5	$	7,865.0
Goodwill acquired during the period	66.1		73.0		139.1
Impairment	(3.7)		(418.7)		(422.4)
Foreign currency impact and other adjustments to goodwill	(2.2)		34.3		32.1
Balance as of September 30, 2020	$	3,781.7	$	3,832.1	$	7,613.8

Schedule of Intangible Assets and Goodwill [Table Text Block]

The components of identifiable intangible assets are as follows:

	September 30, 2020						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	4,530.7	$	(1,473.1)	$	3,057.6	$	4,441.7	$	(1,329.5)	$	3,112.2
Patents, licenses and technology	427.7		(245.3)		182.4		453.6		(235.7)		217.9
Non-compete agreements	105.3		(67.6)		37.7		90.9		(60.5)		30.4
Trade name	410.2		(240.1)		170.1		408.2		(219.9)		188.3
Land use right	10.8		(6.5)		4.3		10.9		(5.5)		5.4
Canadian licenses	468.4		—		468.4		480.3		—		480.3
	$	5,953.1	$	(2,032.6)	$	3,920.5	$	5,885.6	$	(1,851.1)	$	4,034.5

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FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Company's population of financial assets and liabilities subject to fair value measurements

The Company’s population of financial assets and liabilities subject to fair value measurements as of September 30, 2020, and December 31, 2019, is as follows:

				Fair Value Measurements as of
		Fair Value as of		September 30, 2020
	Balance Sheet			Using Fair Value Hierarchy
	Classification	September 30, 2020		Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	15.4	$	—	$	15.4	$	—
Cross currency swaps	Other liabilities	8.8		—		8.8		—
Cash surrender value of life insurance policies	Other assets, net	82.9		—		82.9		—
Deferred compensation liability	Other liabilities	81.0		—		81.0		—
Contingent consideration	Other liabilities	9.0		—		—		9.0

				Fair Value Measurements as of
		Fair Value as of		December 31, 2019
	Balance Sheet			Using Fair Value Hierarchy
	Classification	December 31, 2019		Level 1		Level 2		Level 3
Noncontrolling interest put	Noncontrolling interest	$	15.8	$	—	$	15.8	$	—
Cross currency swaps	Other assets, net	3.2		—		3.2		—
Interest rate swaps	Other assets, net	1.5		—		1.5		—
Cash surrender value of life insurance policies	Other assets, net	80.2		—		80.2		—
Deferred compensation liability	Other liabilities	76.7		—		76.7		—
Investment in equity securities	Other current assets	9.1		9.1		—		—
Contingent consideration	Other liabilities	9.9		—		—		9.9

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Fair Value Measurement of Level 3 Liabilities	Contingent Consideration
Balance at December 31, 2019	$	9.9
Payments	(4.8)
Adjustments	(2.1)
Additions	6.0
Balance at September 30, 2020	$	9.0

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BUSINESS ACQUISITIONS Business Acquisitions Tables (Tables)

3 Months Ended

Sep. 30, 2020

Jun. 30, 2020

Business Acquisition [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

Unaudited Pro Forma Information

Had the Company's total 2019 and 2020 acquisitions been completed as of January 1, 2018, or January 1, 2019, respectively, the Company's pro forma results would have been as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Revenues	$	3,899.7	$	2,969.0	$	9,524.2	$	8,827.7
Net earnings attributable to Laboratory Corporation of America Holdings	$	744.9	$	224.3	$	666.3	$	612.9

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

	Carrying amount of hedged liabilities as of				Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Liabilities as of
	September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
Balance Sheet Line Item in which Hedged Items are Included
Current portion, long term debt	$	—	$	301.5	$	—	$	1.5

Schedule of Business Acquisitions, by Acquisition

The final valuation of acquired assets and assumed liabilities in the transaction as of June 3, 2019, include the following:

Consideration Transferred
Cash consideration	$	601.0
Fair value of CRP	110.0
Total	$	711.0
	Final June 30, 2020
Net Assets Acquired
Cash and cash equivalents	$	11.3
Accounts receivable	12.1
Unbilled services	25.6
Inventories	4.5
Prepaid expenses and other	10.8
Property, plant and equipment	128.4
Deferred income taxes	25.2
Goodwill	376.6
Customer relationships	140.8
Trade name and trademarks	0.6
Other assets	9.9
Total assets acquired	745.8
Accounts payable	15.2
Accrued expenses and other	10.4
Unearned revenue	49.9
Other liabilities	69.3
Total liabilities acquired	144.8
Net Envigo assets acquired	601.0
Floating rate secured note receivable due 2022	110.0
Total	$	711.0

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BUSINESS SEGMENT INFORMATION (Tables)

3 Months Ended

Sep. 30, 2020

Segment Reconciliation of Operating Income to Consolidated [Abstract]

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Revenues:
LCD	$	2,704.2	$	1,759.2	$	6,098.8	$	5,242.1
CDD	1,241.9		1,175.4		3,479.4		3,376.4
Intercompany eliminations and other	(50.0)		(6.2)		(90.0)		(17.1)
Revenues	3,896.1		2,928.5		9,488.7		8,601.4
Operating earnings (loss):
LCD	964.9		262.2		1,451.5		843.0
CDD	142.0		123.8		(131.2)		277.6
General corporate expenses	(59.8)		(46.1)		(168.2)		(126.8)
Total operating income	1,047.1		339.9		1,152.2		993.8
Non-operating expenses, net	(100.0)		(52.5)		(175.7)		(181.8)
Earnings before income taxes	947.1		287.4		976.4		812.0
Provision for income taxes	243.4		66.4		358.0		214.4
Net earnings	703.7		221.0		618.4		597.6
Less: Net earnings attributable to the noncontrolling interest	(0.3)		(0.3)		(0.6)		(0.9)
Net earnings attributable to Laboratory Corporation of America Holdings	$	703.4	$	220.7	$	617.8	$	596.7

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REVENUE (Tables)

3 Months Ended

Sep. 30, 2020

Disaggregation of Revenue [Line Items]

Financing Receivable, Allowance for Credit Loss [Table Text Block]

The rollforward for the allowance for credit losses for the nine months ended September 30, 2020, is as follows:

	For the Nine Months Ended September 30, 2020
	Accounts Receivable		Unbilled Services		Note and Other Receivables		Total
Allowance for credit losses as of December 31, 2019	$	19.0	$	2.3	$	—	$	21.3
Current expected credit losses opening balance impact on retained earnings	1.8		0.2		5.0		7.0
Plus, credit loss expense	10.0		3.9		0.7		14.6
Less, write offs	4.2		0.1		—		4.3
Ending allowance for credit losses	$	26.6	$	6.3	$	5.7	$	38.6

Contract with Customer, Asset and Liability [Table Text Block]

	September 30, 2020		December 31, 2019
Receivables, which are included in accounts receivable	$	834.0	$	771.1
Unbilled services	609.8		483.7
Unearned revenue	492.9		449.2

Disaggregation of Revenue [Table Text Block]

The Company's revenues by segment payers/customer groups for the three and nine months ended September 30, 2020, and 2019, were as follows:

	For the Three Months Ended September 30, 2020
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	21	%	1	%	—	%	—	%	—	%	—	%	22	%
Patients	5	%	—	%	—	%	—	%	—	%	—	%	5	%
Medicare and Medicaid	7	%	—	%	—	%	—	%	—	%	—	%	7	%
Third-party	33	%	1	%	—	%	—	%	—	%	—	%	34	%
Total LCD revenues by payer	66	%	2	%	—	%	—	%	—	%	—	%	68	%
CDD
Biopharmaceutical and medical device companies	16	%	—	%	4	%	4	%	2	%	6	%	32	%
Total revenues	82	%	2	%	4	%	4	%	2	%	6	%	100	%

	For the Three Months Ended September 30, 2019
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	16	%	1	%	—	%	—	%	—	%	—	%	17	%
Patients	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Medicare and Medicaid	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Third-party	25	%	2	%	—	%	—	%	—	%	—	%	27	%
Total LCD revenues by payer	57	%	3	%	—	%	—	%	—	%	—	%	60	%
CDD
Biopharmaceutical and medical device companies	21	%	—	%	5	%	4	%	3	%	7	%	40	%
Total revenues	78	%	3	%	5	%	4	%	3	%	7	%	100	%

	For the Nine Months Ended September 30, 2020
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	19	%	1	%	—	%	—	%	—	%	—	%	20	%
Patients	6	%	—	%	—	%	—	%	—	%	—	%	6	%
Medicare and Medicaid	7	%	—	%	—	%	—	%	—	%	—	%	7	%
Third-party	29	%	1	%	—	%	—	%	—	%	—	%	30	%
Total LCD revenues by payer	61	%	2	%	—	%	—	%	—	%	—	%	63	%
CDD
Biopharmaceutical and medical device companies	18	%	—	%	5	%	4	%	3	%	7	%	37	%
Total revenues	79	%	2	%	5	%	4	%	3	%	7	%	100	%

	For the Nine Months Ended September 30, 2019
	U.S.		Canada		United Kingdom		Switzerland		Other Europe		Other		Total
Payer/Customer
LCD
Clients	16	%	1	%	—	%	—	%	—	%	—	%	17	%
Patients	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Medicare and Medicaid	8	%	—	%	—	%	—	%	—	%	—	%	8	%
Third-party	26	%	2	%	—	%	—	%	—	%	—	%	28	%
Total LCD revenues by payer	58	%	3	%	—	%	—	%	—	%	—	%	61	%
CDD
Biopharmaceutical and medical device companies	20	%	—	%	4	%	5	%	3	%	7	%	39	%
Total revenues	78	%	3	%	4	%	5	%	3	%	7	%	100	%

Capitalized Contract Cost [Table Text Block]

	September 30, 2020		December 31, 2019
Sales commission assets	$	32.8	$	28.6
Deferred contract fulfillment costs	12.9		14.9
Total	$	45.7	$	43.5

XML

Leases (Tables)

3 Months Ended

Sep. 30, 2020

Leases [Abstract]

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

	Nine Months Ended September 30,
	2020		2019
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	195.8	$	216.5
Income taxes, net of refunds	217.5		181.6
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	—		1.7
Change in accrued property, plant and equipment	(24.5)		(15.9)
Floating rate secured note receivable due 2022	—		110.0

XML

BASIS OF FINANCIAL STATEMENT PRESENTATION (Details) - USD ($)	1 Months Ended	3 Months Ended						9 Months Ended
	Apr. 30, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Asset Impairment Charges		$ 23,500,000			$ 0			$ 460,900,000	$ 0
Revenues		3,896,100,000			2,928,500,000			9,488,700,000	8,601,400,000
Cost of Revenue		2,336,700,000			2,111,200,000			6,440,800,000	6,169,600,000
Contract with Customer, Liability		492,900,000						492,900,000		$ 449,200,000
Amortization of Deferred Sales Commissions		6,000,000.0			$ 5,800,000			16,800,000	15,300,000
Assets, Current		$ 4,085,600,000						4,085,600,000		2,981,200,000
Net Cash Provided by (Used in) Operating Activities								$ 1,360,700,000	$ 874,900,000
Percent of Revenue Contributed		100.00%			100.00%			100.00%	100.00%
Selling, general and administrative expenses		$ 419,500,000			$ 401,500,000			$ 1,211,300,000	$ 1,210,600,000
Nonoperating Income (Expense)		(100,000,000.0)			(52,500,000)			(175,700,000)	(181,800,000)
Provision for income taxes		243,400,000			66,400,000			358,000,000.0	214,400,000
Net earnings		703,700,000			221,000,000.0			618,400,000	597,600,000
Net Income (Loss) Attributable to Parent		$ 703,400,000	$ 231,600,000	$ (317,200,000)	$ 220,700,000	$ 190,400,000	$ 185,600,000	$ 617,800,000	$ 596,700,000
Basic earnings per common share (in dollars per share)		$ 7.22			$ 2.26			$ 6.35	$ 6.08
Diluted earnings per common share (in dollars per share)		$ 7.17			$ 2.25			$ 6.31	$ 6.04
Net Cash Provided by (Used in) Investing Activities								$ (515,200,000)	$ (1,131,000,000.0)
Net Cash Provided by (Used in) Financing Activities								(516,400,000)	196,700,000
Effect of exchange rate changes on cash and cash equivalents								600,000	(6,300,000)
Assets		$ 18,739,600,000						18,739,600,000		18,046,400,000
Long-term debt, less current portion		3,009,900,000						3,009,900,000		2,655,800,000
Common stock, 92.8 and 93.5 shares outstanding at March 31, 2013 and December 31, 2012, respectively		19,900,000						19,900,000		20,100,000
Stockholders' Equity Attributable to Parent		8,239,100,000	7,352,700,000	7,020,100,000	$ 7,231,100,000	7,144,400,000	7,111,300,000	8,239,100,000	7,231,100,000	7,567,000,000.0	$ 6,971,400,000
Liabilities and Equity		18,739,600,000						18,739,600,000		18,046,400,000
Capitalized Contract Cost, Amortization		2,300,000			2,300,000			7,600,000	6,100,000
Deferred Revenue, Revenue Recognized								237,200,000	232,800,000
Revenue, Remaining Performance Obligation, Amount		4,795,000,000.0						4,795,000,000.0
Contract with Customer, Performance Obligation Satisfied in Previous Period								44,800,000	67,700,000
Goodwill, Impairment Loss								422,400,000
Other than Temporary Impairment Losses, Investments								25,400,000
Cash Payment Received Appropriated by U.S. Congress Covid-19	$ 55,900,000	76,200,000
CARES Act Funds Accrued Liabilities And Other Liabilities		132,100,000						132,100,000
COVID-19 Pandemic Goodwill and Intangible Asset Impairment								$ 437,400,000
Ownership percentage below which investments are generally accounted for on the cost method (in thousandths)								20.00%
LabCorp Diagnostics [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues		$ 2,704,200,000			$ 1,759,200,000			$ 6,098,800,000	$ 5,242,100,000
Percent of Revenue Contributed		68.00%			60.00%			63.00%	61.00%
Goodwill, Impairment Loss								$ 3,700,000
Impairment of Intangible Assets (Excluding Goodwill)								30,500,000
Covance Drug Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues		$ 1,241,900,000			$ 1,175,400,000			$ 3,479,400,000	$ 3,376,400,000
Percent of Revenue Contributed		32.00%						37.00%
Goodwill, Impairment Loss								$ 418,700,000
Equity Method Income (Loss), Net [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other than Temporary Impairment Losses, Investments				7,100,000
Other Nonoperating Income (Expense) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other than Temporary Impairment Losses, Investments			5,200,000	13,100,000
Retained Earnings [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net Income (Loss) Attributable to Parent		$ 703,400,000	231,600,000	(317,200,000)		190,400,000	185,600,000
Stockholders' Equity Attributable to Parent		$ 8,464,000,000.0	$ 7,760,600,000	$ 7,529,000,000.0	$ 7,676,500,000	$ 7,455,800,000	$ 7,265,400,000	$ 8,464,000,000.0	$ 7,676,500,000	$ 7,903,600,000	$ 7,079,800,000

XML

EARNINGS PER SHARE (Reconciliation of Basic Earnings Per Share to Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Income [Abstract]
Net earnings attributable to Laboratory Corporation of America Holdings	$ 703,400,000	$ 231,600,000	$ (317,200,000)	$ 220,700,000	$ 190,400,000	$ 185,600,000	$ 617,800,000	$ 596,700,000
Shares [Abstract]
Net earnings, basic (in shares)	97.4			97.6			97.3	98.1
Dilutive effect of employee stock options and awards, (in shares)	0.7			0.7			0.6	0.7
Per Share Amount [Abstract]
Basic earnings per common share (in dollars per share)	$ 7.22			$ 2.26			$ 6.35	$ 6.08
Diluted earnings per common share (in dollars per share)	$ 7.17			$ 2.25			$ 6.31	$ 6.04
Net Income (Loss) Available to Common Stockholders, Diluted	$ 703,400,000			$ 220,700,000			$ 617,800,000	$ 596,700,000
Weighted Average Number of Shares Outstanding, Diluted	98.1			98.3			97.9	98.8

XML

EARNINGS PER SHARE (Potential common shares not included in computation of diluted earnings per share) (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Stock options (in shares)	0.2	0.2	0.4	0.2

XML

RESTRUCTURING AND OTHER SPECIAL CHARGES (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 10,400,000	$ 13,400,000
Restructuring Charges	24,700,000
Restructuring Reserve Settled With Cash And Other Adjustment	(50,800,000)
Net restructuring charges	38,900,000	48,400,000
Restructuring charges related to severance and other employee costs	12,800,000	26,200,000
Other Asset Impairment Charges	11,000,000.0
Restructuring charges related to contractual obligations associated with leased facilities and other facility related costs	24,000,000.0	22,000,000.0
Employee Severance Benefits Related Restructuring Reserve Accrual Adjustment	(1,100,000)	(400,000)
Asset Impairment Charges	23,100,000
Unused facility restructuring reserves	(7,800,000)	(200,000)
Restructuring Reserve, Current	8,100,000
Restructuring Reserve, Noncurrent	2,300,000
Covance Drug Development [Member]
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	25,500,000	25,600,000
Covance Drug Development [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	4,000,000.0	5,500,000
Restructuring Charges	8,900,000
Restructuring Reserve Settled With Cash And Other Adjustment	(10,400,000)
Asset Impairment Charges	0
Covance Drug Development [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	4,900,000	4,700,000
Restructuring Charges	6,700,000
Restructuring Reserve Settled With Cash And Other Adjustment	(23,800,000)
Asset Impairment Charges	17,300,000
LabCorp Diagnostics [Member]
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	13,400,000	22,800,000
LabCorp Diagnostics [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	500,000
Restructuring Charges	3,900,000
Restructuring Reserve Settled With Cash And Other Adjustment	(4,400,000)
Asset Impairment Charges	0
LabCorp Diagnostics [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1,500,000	$ 2,700,000
Restructuring Charges	5,200,000
Restructuring Reserve Settled With Cash And Other Adjustment	(12,200,000)
Asset Impairment Charges	$ 5,800,000

XML

RESTRUCTURING RESERVES (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Unused facility restructuring reserves	$ 7,800,000	$ 200,000
Balance, beginning of period	13,400,000
Restructuring charges	24,700,000
Cash payments and other adjustments	(50,800,000)
Balance, end of period	10,400,000	13,400,000
Current			$ 8,100,000
Non-current			2,300,000
Total Restructuring Reserve	10,400,000	13,400,000	10,400,000
Employee Severance Benefits Related Restructuring Reserve Accrual Adjustment	1,100,000	400,000
LabCorp Diagnostics [Member] | Severance and Other Employee Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	500,000
Restructuring charges	3,900,000
Cash payments and other adjustments	(4,400,000)
Balance, end of period	0	500,000
Total Restructuring Reserve	0	500,000	0
LabCorp Diagnostics [Member] | Lease and Other Facility Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	2,700,000
Restructuring charges	5,200,000
Cash payments and other adjustments	(12,200,000)
Balance, end of period	1,500,000	2,700,000
Total Restructuring Reserve	1,500,000	2,700,000	1,500,000
Covance Drug Development [Member] | Severance and Other Employee Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	5,500,000
Restructuring charges	8,900,000
Cash payments and other adjustments	(10,400,000)
Balance, end of period	4,000,000.0	5,500,000
Total Restructuring Reserve	4,000,000.0	5,500,000	4,000,000.0
Covance Drug Development [Member] | Lease and Other Facility Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	4,700,000
Restructuring charges	6,700,000
Cash payments and other adjustments	(23,800,000)
Balance, end of period	4,900,000	4,700,000
Total Restructuring Reserve	$ 4,900,000	$ 4,700,000	$ 4,900,000

XML

GOODWILL AND INTANGIBLE ASSETS (Changes in Carrying Amount of Goodwill) (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Goodwill [Line Items]
Amortization of intangibles and other assets	$ 62,200,000		$ 61,700,000	$ 184,600,000	$ 179,000,000.0
Severance Costs				12,800,000		$ 26,200,000
Intangible Assets, Gross (Excluding Goodwill)	5,953,100,000			5,953,100,000		5,885,600,000
Balance as of January 1		$ 7,865,000,000.0		7,865,000,000.0
Adjustments to goodwill				32,100,000
Balance at end of period	7,613,800,000			7,613,800,000		7,865,000,000.0
Finite-Lived Intangible Assets, Accumulated Amortization	2,032,600,000			2,032,600,000		1,851,100,000
Intangible Assets, Net (Excluding Goodwill)	3,920,500,000			3,920,500,000		4,034,500,000
Goodwill, Impairment Loss				422,400,000
Goodwill, Acquired During Period				139,100,000
LabCorp Diagnostics [Member]
Goodwill [Line Items]
Balance as of January 1		$ 3,721,500,000		3,721,500,000
Adjustments to goodwill				(2,200,000)
Balance at end of period	3,781,700,000			3,781,700,000		3,721,500,000
Goodwill, Impairment Loss				3,700,000
Percentage Fair Value of Goodwill Exceeded Carrying Value		10.00%
Percentage Change in Discount Rate Used to Calculate Fair Value of Goodwill		1.00%
Value of Goodwill Impairment Following a Percentage Change in the Discount Rate Used to Calculate Goodwill for Reporting Unit		$ 40,000,000.0
Impairment of Intangible Assets (Excluding Goodwill)				30,500,000
Value of Reporting Units Goodwill Fair Value Exceeds Carrying Value	86.0			86.0
Goodwill, Acquired During Period				66,100,000
Covance Drug Development [Member]
Goodwill [Line Items]
Balance as of January 1		$ 4,143,500,000		4,143,500,000
Adjustments to goodwill				34,300,000
Balance at end of period	3,832,100,000			3,832,100,000		4,143,500,000
Goodwill, Impairment Loss				418,700,000
Percentage Fair Value of Goodwill Exceeded Carrying Value		10.00%
Percent Change in Discount Rate Used to Calculate Fair Value of Goodwill for Reporting Unit		1.00%
Percent of Fair Value Exceeding Carrying Value Post Percent Change in Discount Rate Used to Calculate Fair Value of Goodwill for Reporting Unit		2.00%
Value of Reporting Unit's Goodwill Following Impairment		$ 1,627,500,000
Value of Reporting Units Goodwill Fair Value Exceeds Carrying Value	646,200,000			646,200,000
Goodwill, Acquired During Period				73,000,000.0
Customer Relationships [Member]
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	4,530,700,000			4,530,700,000		4,441,700,000
Finite-Lived Intangible Assets, Accumulated Amortization	1,473,100,000			1,473,100,000		1,329,500,000
Intangible Assets, Net (Excluding Goodwill)	3,057,600,000			3,057,600,000		3,112,200,000
Patents, Licenses And Technology [Member]
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	427,700,000			427,700,000		453,600,000
Finite-Lived Intangible Assets, Accumulated Amortization	245,300,000			245,300,000		235,700,000
Intangible Assets, Net (Excluding Goodwill)	182,400,000			182,400,000		217,900,000
Noncompete Agreements [Member]
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	105,300,000			105,300,000		90,900,000
Finite-Lived Intangible Assets, Accumulated Amortization	67,600,000			67,600,000		60,500,000
Intangible Assets, Net (Excluding Goodwill)	37,700,000			37,700,000		30,400,000
Trade Names [Member]
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	410,200,000			410,200,000		408,200,000
Finite-Lived Intangible Assets, Accumulated Amortization	240,100,000			240,100,000		219,900,000
Intangible Assets, Net (Excluding Goodwill)	170,100,000			170,100,000		188,300,000
Use Rights [Member]
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	10,800,000			10,800,000		10,900,000
Finite-Lived Intangible Assets, Accumulated Amortization	6,500,000			6,500,000		5,500,000
Intangible Assets, Net (Excluding Goodwill)	4,300,000			4,300,000		5,400,000
Canadian licenses [Member]
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	468,400,000			468,400,000		480,300,000
Finite-Lived Intangible Assets, Accumulated Amortization	0			0		0
Intangible Assets, Net (Excluding Goodwill)	$ 468,400,000			$ 468,400,000		$ 480,300,000
Trade Names [Member] | Covance Drug Development [Member]
Goodwill [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		$ 2,700,000

XML

GOODWILL AND INTANGIBLE ASSETS (Components of identifiable intangible assets) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 5,953.1	$ 5,885.6
Accumulated Amortization	(2,032.6)	(1,851.1)
Intangible Assets, Net (Excluding Goodwill)	3,920.5	4,034.5
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	4,530.7	4,441.7
Accumulated Amortization	(1,473.1)	(1,329.5)
Intangible Assets, Net (Excluding Goodwill)	3,057.6	3,112.2
Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	427.7	453.6
Accumulated Amortization	(245.3)	(235.7)
Intangible Assets, Net (Excluding Goodwill)	182.4	217.9
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	105.3	90.9
Accumulated Amortization	(67.6)	(60.5)
Intangible Assets, Net (Excluding Goodwill)	37.7	30.4
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	410.2	408.2
Accumulated Amortization	(240.1)	(219.9)
Intangible Assets, Net (Excluding Goodwill)	170.1	188.3
Use Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	10.8	10.9
Accumulated Amortization	(6.5)	(5.5)
Intangible Assets, Net (Excluding Goodwill)	4.3	5.4
Canadian licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	468.4	480.3
Accumulated Amortization	0.0	0.0
Intangible Assets, Net (Excluding Goodwill)	$ 468.4	$ 480.3

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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 5,953,100,000			$ 5,953,100,000		$ 5,885,600,000
Goodwill	7,613,800,000			7,613,800,000		7,865,000,000.0
Amortization of intangibles and other assets	62,200,000		$ 61,700,000	184,600,000	$ 179,000,000.0
Goodwill, Impairment Loss				422,400,000
Amortization of intangible assets	62,200,000		$ 61,700,000	184,600,000	$ 179,000,000.0
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense, 2012	60,000,000.0			60,000,000.0
Estimated amortization expense, 2013	238,500,000			238,500,000
Estimated amortization expense, 2014	232,600,000			232,600,000
Estimated amortization expense, 2015	229,500,000			229,500,000
Estimated amortization expense, 2016	224,600,000			224,600,000
Estimated amortization expense, Thereafter	2,380,200,000			2,380,200,000
LabCorp Diagnostics [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	3,781,700,000			3,781,700,000		3,721,500,000
Value of Goodwill Impairment Following a Percentage Change in the Discount Rate Used to Calculate Goodwill for Reporting Unit		$ 40,000,000.0
Goodwill, Impairment Loss				3,700,000
Impairment of Intangible Assets (Excluding Goodwill)				30,500,000
impairment of floating rate note receivable	700,000
Covance Drug Development [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	3,832,100,000			3,832,100,000		$ 4,143,500,000
Goodwill, Impairment Loss				$ 418,700,000
Trade Names [Member] | Covance Drug Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		$ 2,700,000
Customer Relationships [Member] | Covance Drug Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)	10,100,000
Technology-Based Intangible Assets [Member] | Covance Drug Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)	$ 17.7

XML

DEBT (Short-term borrowings and current portion of long-term debt) (Table) (Details) - USD ($)
$ in Millions

3 Months Ended

Sep. 30, 2020

Dec. 31, 2019

Jun. 03, 2019

Short-term Debt [Line Items]

Line of Credit Facility, Fair Value of Amount Outstanding

$ 375.0

Total short-term borrowings and current portion of long-term debt

$ 376.6

415.2

2019 Term Loan

$ 375.0

0.0

$ 850.0

Short-term borrowings and current portion of long-term debt

Short-term borrowings and the current portion of long-term debt at September 30, 2020, and December 31, 2019, consisted of the following:

	September 30, 2020		December 31, 2019
4.625% senior notes due 2020	$	—	$	413.7
2019 Term Loan	375.0		—
Debt issuance costs	(0.6)		(0.7)
Current portion of note payable	2.2		2.2
Total short-term borrowings and current portion of long-term debt	$	376.6	$	415.2

Senior notes due 2020 [Member]

Short-term Debt [Line Items]

Debt Instrument, Interest Rate, Stated Percentage

4.625%

Senior notes due 2022 [Member]

Short-term Debt [Line Items]

Senior Notes, Noncurrent

$ 500.0

$ 500.0

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DEBT (Long-term debt) (Details) - USD ($)
$ in Millions

3 Months Ended

Sep. 30, 2020

Dec. 31, 2019

Debt Instrument [Line Items]

Long-term Debt [Text Block]

Long-term debt at September 30, 2020, and December 31, 2019, consisted of the following:

	September 30, 2020		December 31, 2019
3.20% senior notes due 2022	$	500.0	$	500.0
3.75% senior notes due 2022	500.0		500.0
4.00% senior notes due 2023	300.0		300.0
3.25% senior notes due 2024	600.0		600.0
2.30% senior notes due 2024	400.0		400.0
3.60% senior notes due 2025	1,000.0		1,000.0
3.60% senior notes due 2027	600.0		600.0
2.95% senior notes due 2029	650.0		650.0
4.70% senior notes due 2045	900.0		900.0
2019 Term Loan	—		375.0
Debt issuance costs	(38.8)		(42.2)
Note payable	6.1		7.0
Total long-term debt	$	5,417.3	$	5,789.8

Long-term Debt, Excluding Current Maturities

$ 5,417.3

$ 5,789.8

Line of Credit Facility, Fair Value of Amount Outstanding

375.0

Line of Credit Facility, Maximum Borrowing Capacity

1,000.0

Credit Facility Option to Increase

350.0

Credit Facility, Maximum Swing Line Borrowings

100.0

Notes Payable

6.1

7.0

2019 Term Loan [Member]

Debt Instrument [Line Items]

Line of Credit Facility, Fair Value of Amount Outstanding

$ 0.0

Senior notes due 2020 [Member]

Debt Instrument [Line Items]

Stated interest rate percentage

4.625%

Senior notes due 2022 [Member]

Debt Instrument [Line Items]

Long-term Debt, Excluding Current Maturities

$ 500.0

500.0

Senior Notes, Noncurrent

500.0

500.0

Senior notes due 2023 [Member]

Debt Instrument [Line Items]

Long-term Debt, Excluding Current Maturities

300.0

300.0

Senior notes due 2025 [Member] [Member]

Debt Instrument [Line Items]

Long-term Debt, Excluding Current Maturities

1,000.0

1,000.0

Senior notes due 2045 [Member]

Debt Instrument [Line Items]

Long-term Debt, Excluding Current Maturities

900.0

$ 900.0

Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Credit Facility, Maximum Letters of Credit

$ 150.0

Prime Rate [Member] | Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Line of Credit Facility, Interest Rate Description

0.00% to 0.25%

2019 Term Loan [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate, Effective Percentage

0.95%

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DEBT (Senior Notes) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Short term debt issuance costs	$ 0.6	$ 0.7
Long-term Debt, Excluding Current Maturities	5,417.3	5,789.8
Line of Credit Facility, Maximum Borrowing Capacity	1,000.0
Credit Facility Option to Increase	350.0
Credit Facility, Maximum Swing Line Borrowings	100.0
Fair Value Hedges, Net		1.5
Line of Credit Facility, Fair Value of Amount Outstanding		375.0
Long term debt issuance costs	38.8	42.2
Notes Payable	2.2	2.2
Debt, Current	376.6	415.2
Foreign Currency Contract, Asset, Fair Value Disclosure		3.2
4.625% Senior notes due 2020	0.0	413.7
2.30% senior notes due 2024	400.0	400.0
2.95% senior notes due 2029	650.0	650.0
Senior Notes Became Due During Quarter	412.2
Senior notes due 2023 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	300.0	300.0
Senior notes due 2024 [Member] [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	600.0	600.0
Senior notes due 2027 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	600.0	600.0
Senior notes due 2045 [Member]
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	900.0	$ 900.0
2019 Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 0.0
Senior notes due 2020 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	4.625%

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DEBT (Credit Facilities) (Details) $ in Millions	3 Months Ended
	Sep. 30, 2020 USD ($) Rate	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 03, 2019 USD ($)	Dec. 31, 2018 USD ($)
Line of Credit Facility [Line Items]
2019 Term Loan	$ 375.0	$ 0.0		$ 850.0
Senior Notes Became Due During Quarter	412.2
Cash and cash equivalents	667.2	337.5	$ 361.1		$ 426.8
Long-term Debt, Excluding Current Maturities	5,417.3	5,789.8
Line of Credit Facility, Fair Value of Amount Outstanding		375.0
Revolving Credit Facility, maximum borrowing capacity	1,000.0
Notes Payable	2.2	2.2
Debt, Current	376.6	415.2
Credit Facility Option to Increase	350.0
Credit Facility, Maximum Swing Line Borrowings	100.0
Notes Payable	6.1	7.0
Senior notes due 2027 [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Excluding Current Maturities	600.0	600.0
Senior notes due 2024 [Member] [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Excluding Current Maturities	$ 600.0	600.0
Senior notes due 2020 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Senior notes due 2045 [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Excluding Current Maturities	$ 900.0	900.0
Senior notes due 2022 [Member]
Line of Credit Facility [Line Items]
Senior Notes, Noncurrent	500.0	500.0
Long-term Debt, Excluding Current Maturities	$ 500.0	$ 500.0
Term Loan and Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt to EBITDA (Leverage) Ratio Quarter Ending Thereafter March 31, 2021	4.0
Debt to EBITDA (Leverage) Ratio Quarter Ending 1 Year From Present	4.5
2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Term Loan Accrue Interest per Annum at Libor Plus Margin Percentage | Rate	1.175%
Term Loan Accrue Interest Per Annum Base Rate Plus Percentage | Rate	0.175%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 997.0
Credit Facility, Maximum Letters of Credit	$ 150.0
Line of Credit Facility, Interest Rate at Period End | Rate	1.12%
Revolving Credit Facility Accrue Interest per Annum at Libor Plus Margin Percentage | Rate	1.25%
Revolving Credit Facility Accrue Interest Per Annum Base Rate Plus Percentage | Rate	0.25%
Revolving Credit Facility Fee Percentage Required to Pay on Outstanding Commitments | Rate	0.25%
Maximum [Member] | Term Loan and Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt to EBITDA (Leverage) Ratio Next Three Quarters	5.0
Prime Rate [Member] | 2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.0% to 0.175%
Prime Rate [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.00% to 0.25%
London Interbank Offered Rate (LIBOR) [Member] | 2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.55% to 1.175%

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PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				9 Months Ended
	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased							800.0
Rollforward of common shares issued
Stock Repurchased During Period, Shares	0.6
Payments for Repurchase of Common Stock					$ 100.0	$ 400.0
Rollforward of Share Repurchase Program
Outstanding common stock repurchase authorization, beginning balance	$ 900.0				$ 900.0
Purchase of common stock	$ (100.0)	$ (100.0)	$ (199.9)	$ (100.1)
Common Shares Outstanding Rollforward [Abstract]
Common shares outstanding, beginning balance (in shares)	97.2				97.2
Common shares outstanding, ending balance (in shares)					97.4
Rollforward of common shares held in treasury
Common Stock, Shares Authorized							265.0
Common Stock, Par or Stated Value Per Share							$ 0.10
Preferred Stock, Shares Authorized							30.0
Preferred Stock, Par or Stated Value Per Share							$ 0.10
Preferred Stock, Shares Outstanding							0.0
Common Stock [Member]
Rollforward of common shares issued
Common shares issued, beginning balance (in shares)	97.2				97.2
Commons Stock Issued During Period Shares Employee Stock Plans					0.8
Stock Repurchased and Retired During Period, Shares					(0.6)
Common shares issued, ending balance (in shares)					97.4
Common Stock, Shares, Issued	97.2				97.4		97.4
Common Shares Outstanding Rollforward [Abstract]
Commons Stock Issued During Period Shares Employee Stock Plans					0.8
Stock Repurchased and Retired During Period, Shares					(0.6)
Commons Stock Issued During Period Shares Employee Stock Plans					0.8
Rollforward of common shares held in treasury
Stock Repurchased and Retired During Period, Shares					(0.6)

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PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY - Accumulated Other Comprehensive Earnings (Details) - USD ($)
$ in Millions

3 Months Ended

9 Months Ended

Sep. 30, 2020

Sep. 30, 2019

Sep. 30, 2020

Sep. 30, 2019

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The components of accumulated other comprehensive earnings (loss) are as follows:

	Foreign Currency Translation Adjustments		Net Benefit Plan Adjustments		Accumulated Other Comprehensive Earnings (Loss)
Balance as of December 31, 2019	$	(285.4)	$	(87.0)	$	(372.4)
Current year adjustments	52.4		7.5		59.9
Tax effect of adjustments	—		(2.1)		(2.1)
Balance as of September 30, 2020	$	(233.0)	$	(81.6)	$	(314.6)

Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax

$ 7.5

Other Comprehensive Income (Loss), before Reclassifications, before Tax

59.9

Accumulated Other Comprehensive Earnings [Roll Forward]

Foreign Currency Translation Adjustments, Beginning balance

(285.4)

Other comprehensive income before reclassifications

52.4

Tax effect of adjustments

0.0

Foreign Currency Translation Adjustments, Ending balance

$ (233.0)

(233.0)

Net Benefit Plan Adjustments, Beginning balance

(87.0)

Tax effect of adjustments

(2.1)

Net Benefit Plan Adjustments, Ending balance

(81.6)

(81.6)

Accumulated Other Comprehensive Earnings, Beginning balance

(372.4)

Other comprehensive income before reclassifications

52.4

Tax effect of adjustments

(0.6)

$ (0.9)

(2.1)

$ (2.4)

Accumulated Other Comprehensive Earnings, Ending balance

$ (314.6)

$ (314.6)

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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent	50.00%
Gross unrecognized income tax benefits	$ 41.3	$ 31.7
Accrued interest and penalties related to unrecognized income tax benefits	$ 9.0	$ 5.5

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PENSION AND POSTRETIREMENT PLANS (Details) - USD ($)
$ in Millions

3 Months Ended

9 Months Ended

Sep. 30, 2020

Sep. 30, 2019

Sep. 30, 2020

Sep. 30, 2019

Dec. 31, 2019

Defined Benefit Plan Disclosures [Line Items]

Minimum non-elective contribution (NEC) % for the 401(K) plan (in hundredths)

3.00%

Discretionary Contribution Percentage Maximum

3.00%

Defined Benefit Plan and Postretirement Plan Disclosure

Schedule of Pensions and Postretirement Plans

The effect on operations for the Company Plan and the PEP is summarized as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Service cost for administrative expenses	$	1.3	$	1.1	$	3.9	$	3.1
Interest cost on benefit obligation	2.8		3.4		8.4		10.4
Expected return on plan assets	(3.7)		(3.7)		(11.2)		(11.3)
Net amortization and deferral	2.4		3.0		7.2		8.2
Defined benefit plan costs	$	2.8	$	3.8	$	8.3	$	10.4

Pension And Postretirement Plans

PENSION AND POSTRETIREMENT PLANS

Retirement Plans

All employees eligible for the LCD defined-contribution retirement plan (LCD 401(k) Plan) receive a minimum 3% non-elective contribution (NEC) concurrent with each payroll period. Employees are not required to make a contribution to the LCD 401(k) Plan to receive the NEC. The NEC is non-forfeitable and vests immediately. The LCD 401(k) Plan also permits discretionary contributions by the Company of 1% to 3% of pay for eligible employees based on service. The Company incurred expense of $14.0 and $16.7 for the LCD 401(k) Plan during the three months ended September 30, 2020, and 2019, respectively, and $41.4 and $48.9 during the nine months ended September 30, 2020, and 2019, respectively.

All of the CDD U.S. employees are eligible to participate in the CDD 401(k) Plan, which is available on a voluntary basis and features a maximum 4.5% Company match, based upon a percentage of the employee’s contributions. The Company incurred expense of $21.0 and $18.2 for the Covance 401(k) plan during the three months ended September 30, 2020, and 2019, respectively, and $64.8 and $56.0 during the nine months ended September 30, 2020, and 2019, respectively.

The Company also maintains several other small 401(k) plans associated with companies acquired over the last several years.

Pension Plans

The Company has a defined-benefit retirement plan (Company Plan) and a nonqualified supplemental retirement plan (PEP). Both plans have been closed to new participants since December 31, 2009. Employees participating in the Company Plan and PEP no longer earn service-based credits, but continue to earn investment credits.

The Company Plan covers substantially all LCD employees employed prior to December 31, 2009. The benefits to be paid under the Company Plan are based on years of credited service through December 31, 2009, interest credits and average compensation. The Company's policy is to fund the Company Plan with at least the minimum amount required by applicable regulations.

The PEP covers a portion of the Company's senior management group. Prior to 2010, the PEP provided for the payment of the difference, if any, between the amount of any maximum limitation on annual benefit payments under the Employee Retirement Income Security Act of 1974 and the annual benefit that would be payable under the Company Plan but for such limitation. Effective January 1, 2010, employees participating in the PEP no longer earn service-based credits. The PEP is an unfunded plan.

The effect on operations for the Company Plan and the PEP is summarized as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Service cost for administrative expenses	$	1.3	$	1.1	$	3.9	$	3.1
Interest cost on benefit obligation	2.8		3.4		8.4		10.4
Expected return on plan assets	(3.7)		(3.7)		(11.2)		(11.3)
Net amortization and deferral	2.4		3.0		7.2		8.2
Defined benefit plan costs	$	2.8	$	3.8	$	8.3	$	10.4

The service cost component of net periodic pension cost and net periodic post-retirement benefit cost is included in operating expenses with other employee compensation costs. The other components of net benefit cost, including amortization or prior service cost/credit and settlement and curtailment effects are included in other, net non-operating expenses. During the nine months ended September 30, 2020, the Company made no contributions to the Company Plan. The related net pension obligation for the Company Plan and PEP was $92.6 and $93.4 as of September 30, 2020, and December 31, 2019, respectively.

As a result of the Covance acquisition, the Company sponsors two defined benefit pension plans for the benefit of its employees at two U.K. subsidiaries (U.K. Plans) and one defined benefit pension plan for the benefit of its employees at a German subsidiary (German Plan), all of which are legacy plans of previously acquired companies. The U.K. Plans were closed to future accrual as of December 31, 2019. Benefit amounts for all three plans are based upon years of service and compensation; however, the U.K. Plans were based on service and compensation through December 31, 2019. The German Plan is unfunded while the U.K. Plans are funded. The Company’s funding policy has been to contribute annually a fixed percentage of the eligible employee's salary, and additional amounts, at least equal to the local statutory funding requirements.

As a result of the Envigo acquisition, the Company assumed a defined benefit pension plan for the benefit of Envigo's U.K. employees (the Envigo Plan), which is a legacy plan of a company previously acquired by Envigo. The Envigo Plan is a funded plan that is closed to future accrual. The Company’s funding policy has been to contribute amounts at least equal to the local statutory funding requirements.

The related net pension obligation for these plans inclusive of the U.K. Plans, German Plan, and the Envigo Plan, was $85.4 and $99.1 as of September 30, 2020, and December 31, 2019, respectively.

Defined Benefit Plan, Funded (Unfunded) Status of Plan

$ (92.6)

$ (92.6)

$ (93.4)

Defined Contribution Plan Total Expense

14.0

$ 16.7

41.4

$ 48.9

Pension and Other Postretirement Plans Costs [Member]

Defined Benefit Plan and Postretirement Plan Disclosure

Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation

85.4

85.4

$ 99.1

Pension Plan [Member]

Defined Benefit Plan and Postretirement Plan Disclosure

Service cost for benefits earned

1.3

1.1

3.9

3.1

Interest cost on benefit obligation

2.8

3.4

8.4

10.4

Expected return on plan assets

(3.7)

(3.7)

(11.2)

(11.3)

Net amortization and deferral

2.4

3.0

7.2

8.2

Defined benefit/postretirement plan costs

2.8

3.8

8.3

10.4

Covance [Member]

Defined Benefit Plan Disclosures [Line Items]

Defined contribution retirement plan cost

$ (21.0)

$ (18.2)

$ (64.8)

$ (56.0)

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PENSION AND POSTRETIREMENT PLANS Defined Contribution Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Non Elective Contribution	3.00%
Discretionary Contribution Percentage Minimum	1.00%
Defined Contribution Plan Total Expense	$ 14.0	$ 16.7	$ 41.4	$ 48.9
Discretionary Contribution Percentage Maximum	3.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	4.50%
Covance [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	$ 21.0	$ 18.2	$ 64.8	$ 56.0

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FAIR VALUE MEASUREMENTS (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 03, 2019 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Number of Measurement Funds Available For Participant Election	16
Noncontrolling interest puts	$ 15.4	$ 15.8
Fair market value of senior notes	6,107.9	6,140.6
Notes Receivable, Fair Value Disclosure	0.0		$ 110.0	$ 110.0
Cash Surrender Value, Fair Value Disclosure	82.9	80.2
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	81.0	76.7
Contingent Consideration Classified as Equity, Fair Value Disclosure	9.0	9.9
Fair Value Hedges, Net		1.5
Foreign Currency Contract, Asset, Fair Value Disclosure		3.2
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	6.0
Contingent consideration adjustment	(2.1)
Equity Securities, FV-NI		9.1
lh_BusinessCombinationContingentConsiderationArrangementsPayments	(4.8)
Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	0.0
Fair Value Hedges, Net		0.0
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Equity Securities, FV-NI		9.1
Fair Value, Inputs, Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	15.4	15.8
Cash Surrender Value, Fair Value Disclosure	82.9	80.2
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	81.0	76.7
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	0.0
Fair Value Hedges, Net		1.5
Foreign Currency Contract, Asset, Fair Value Disclosure		3.2
Equity Securities, FV-NI		0.0
Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Contingent Consideration Classified as Equity, Fair Value Disclosure	9.0	9.9
Fair Value Hedges, Net		0.0
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 0.0	0.0
Equity Securities, FV-NI		$ 0.0

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	$ (23,100,000)		$ (12,000,000.0)
Long-term Debt, Excluding Current Maturities	5,417,300,000		5,417,300,000		$ 5,789,800,000
Foreign Currency Contract, Asset, Fair Value Disclosure					3,200,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	8,800,000		8,800,000
Fair Value Hedge Liabilities	0		0		1,500,000
Gain Interest Rate Swap Arrangement	1,600,000		1,600,000
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
4.625% Senior notes due 2020	0		0		301,500,000
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	0	$ 400,000	800,000	$ 7,200,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	1,600,000	0	1,600,000	0
Fair Value Hedge Assets	0		0		1,500,000
Fair Value Hedge Liabilities	0		0		0
Currency Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(23,100,000)	18,800,000	(12,000,000.0)	22,800,000
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	$ 0	0	$ 0
Fair Value Hedge Assets	0		0		3,200,000
Fair Value Hedge Liabilities	8,800,000		8,800,000		0
Senior notes due 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	500,000,000.0		500,000,000.0		500,000,000.0
Cross currency swap maturing 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	300,000,000.0		300,000,000.0
Senior notes due 2025 [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 300,000,000.0		$ 300,000,000.0
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%		4.625%
Senior Long Term Notes Due2020 Member
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	$ 0		$ 0		300,000,000.0
Senior notes due 2025 [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	1,000,000,000.0		1,000,000,000.0		1,000,000,000.0
Senior notes due 2027 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	600,000,000.0		600,000,000.0		600,000,000.0
Fair Value, Inputs, Level 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure					$ 3,200,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 8,800,000		$ 8,800,000

XML

BUSINESS ACQUISITIONS Business Acquisitions in the Aggregate (Details) - USD ($)		3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 03, 2019	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill, Acquired During Period					$ 139,100,000
Business Acquisition, Pro Forma Revenue		$ 3,899,700,000		$ 2,969,000,000.0	9,524,200,000	$ 8,827,700,000
Revenues		3,896,100,000		2,928,500,000	9,488,700,000	8,601,400,000
Payments to Acquire Businesses, Net of Cash Acquired					208,800,000	852,900,000
Goodwill		7,613,800,000			7,613,800,000		$ 7,865,000,000.0
Business Acquisition, Pro Forma Net Income (Loss)		744,900,000		224,300,000	666,300,000	612,900,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					6,000,000.0
Operating Income (Loss)		1,047,100,000		339,900,000	1,152,200,000	993,800,000
Notes Receivable, Fair Value Disclosure	$ 110,000,000.0	0		110,000,000.0	0	110,000,000.0
Total acquisition consideration (cash, stock, notes, etc.)	711,000,000.0		$ 711,000,000.0
Gain (Loss) on Disposition of Assets							12,200,000
Covance Drug Development [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period					73,000,000.0
Revenues		1,241,900,000		1,175,400,000	3,479,400,000	3,376,400,000
Goodwill		3,832,100,000			3,832,100,000		4,143,500,000
Operating Income (Loss)		142,000,000.0		123,800,000	(131,200,000)	277,600,000
LabCorp Diagnostics [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period					66,100,000
Revenues		2,704,200,000		1,759,200,000	6,098,800,000	5,242,100,000
Goodwill		3,781,700,000			3,781,700,000		$ 3,721,500,000
Operating Income (Loss)		964,900,000		$ 262,200,000	1,451,500,000	843,000,000.0
Other acquirees [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period					128,900,000	512,300,000
Revenues		13,100,000			13,800,000
Payments to Acquire Businesses, Net of Cash Acquired					208,800,000	852,900,000
Finite-lived Intangible Assets Acquired					88,500,000	324,100,000
Operating Income (Loss)		$ 3,500,000			3,600,000
Other acquirees [Member] | Covance Drug Development [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired					95,400,000	205,500,000
Other acquirees [Member] | LabCorp Diagnostics [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired					$ 113,400,000	$ 647,400,000
Other acquirees [Member] | Minimum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					5 years	11 years
Other acquirees [Member] | Maximum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years	15 years
Envigo [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 601,000,000.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			11 years
Notes Receivable, Fair Value Disclosure			$ 110,000,000.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents			11,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables			12,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other			25,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory			4,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets			10,800,000
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets			128,400,000
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets			25,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			141,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets			9,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets			745,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable			15,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue			49,900,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			144,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			601,000,000.0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			376,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other			10,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities			69,300,000
Customer Relationships [Member] | Envigo [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets			140,800,000
Trade Names [Member] | Envigo [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			$ 600,000

XML

BUSINESS ACQUISITIONS DISPOSITIONS (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ (667.2)	$ (337.5)	$ (361.1)	$ (426.8)
Accounts Receivable, after Allowance for Credit Loss, Current	2,095.2	1,543.9
Unbilled Contracts Receivable	603.5	481.4
Supplies inventories	392.5	244.7
Prepaid expenses and other	327.2	373.7
Property, plant and equipment, net	2,608.6	2,636.6
Goodwill	7,613.8	7,865.0
Intangible Assets, Net (Excluding Goodwill)	3,920.5	4,034.5
Other assets, net	437.0	435.4
Accounts Payable, Current	639.5	632.3
Accrued Liabilities, Current	1,297.8	942.4
Deferred Revenue, Current	494.8	451.0
Deferred income taxes and other tax liabilities	891.5	942.8
Commitments and contingent liabilities	$ 473.2	$ 383.2

XML

BUSINESS SEGMENT INFORMATION Business Segment Information (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Percent of Revenue Contributed	100.00%			100.00%			100.00%	100.00%
Intercompany revenue elimination	$ (50,000,000.0)			$ (6,200,000)			$ (90,000,000.0)	$ (17,100,000)
Revenues	3,896,100,000			2,928,500,000			9,488,700,000	8,601,400,000
Operating Income (Loss)	1,047,100,000			339,900,000			1,152,200,000	993,800,000
Earnings before income taxes	947,100,000			287,400,000			976,400,000	812,000,000.0
Provision for income taxes	243,400,000			66,400,000			358,000,000.0	214,400,000
Net earnings	703,700,000			221,000,000.0			618,400,000	597,600,000
Net income attributable to Laboratory Corporation of America Holdings	(300,000)			(300,000)			(600,000)	(900,000)
Nonoperating Income (Expense)	(100,000,000.0)			(52,500,000)			(175,700,000)	(181,800,000)
Net Income (Loss) Attributable to Parent	703,400,000	$ 231,600,000	$ (317,200,000)	$ 220,700,000	$ 190,400,000	$ 185,600,000	$ 617,800,000	$ 596,700,000
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ (59,800,000)
LabCorp Diagnostics [Member]
Segment Reporting Information [Line Items]
Percent of Revenue Contributed	68.00%			60.00%			63.00%	61.00%
Revenues	$ 2,704,200,000			$ 1,759,200,000			$ 6,098,800,000	$ 5,242,100,000
Operating Income (Loss)	$ 964,900,000			262,200,000			$ 1,451,500,000	843,000,000.0
Covance Drug Development [Member]
Segment Reporting Information [Line Items]
Percent of Revenue Contributed	32.00%						37.00%
Revenues	$ 1,241,900,000			1,175,400,000			$ 3,479,400,000	3,376,400,000
Operating Income (Loss)	$ 142,000,000.0			123,800,000			(131,200,000)	277,600,000
Corporation
Segment Reporting Information [Line Items]
Operating Income (Loss)				$ (46,100,000)			$ (168,200,000)	$ (126,800,000)

XML

REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Amortization of Deferred Sales Commissions	$ 6.0	$ 5.8	$ 16.8	$ 15.3
Capitalized Contract Cost, Amortization	$ 2.3	$ 2.3	7.6	6.1
Contract with Customer, Performance Obligation Satisfied in Previous Period			44.8	67.7
Deferred Revenue, Revenue Recognized			$ 237.2	$ 232.8

XML

REVENUE Disaggregated Revenue Table (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Accounts Receivable, Allowance for Credit Loss	$ 26.6		$ 26.6		$ 19.0
Unbilled Services, Allowance for Credit Loss	6.3		6.3		2.3
Note Receivable, Allowance for Credit Loss	5.7		5.7		0.0
Allowance for Credit Loss	$ 38.6		38.6		21.3
Current Expected Credit Losses Opening Balance Sheet Impact on Retained Earnings			7.0
Accounts Receivable, Credit Loss Expense (Reversal)			10.0
Unbilled Services, Credit Loss Expense (Reversal)			3.9
Note Receivable, Credit Loss Expense (Reversal)			0.7
Credit Loss Expense (Reversal)			14.6
Allowance for Credit Loss, Write Off			4.3
Sales Commission Amortization Period Minimum	1 year
Deferred Revenue, Revenue Recognized			237.2	$ 232.8
Contract with Customer, Asset, before Allowance for Credit Loss	$ 609.8		609.8		483.7
Revenue, Remaining Performance Obligation, Amount	$ 4,795.0		$ 4,795.0
Percent of remaining performance obligations recognized as revenue in next year	32.00%		32.00%
Long Term Contracts Duration Minimum	1 year
Long Term Contracts Duration Maximum	8 years
Contract with Customer, Performance Obligation Satisfied in Previous Period			$ 44.8	67.7
Contract with Customer, Liability	$ 492.9		492.9		449.2
Capitalized Contract Cost, Amortization	2.3	$ 2.3	7.6	6.1
Accrued Sales Commission	32.8		32.8		28.6
Capitalized Contract Cost, Net	12.9		12.9		14.9
Amount of Deferred Costs Related to Long-term Contracts	45.7		45.7		43.5
Amortization of Deferred Sales Commissions	6.0	$ 5.8	16.8	$ 15.3
Unbilled Contracts Receivable	$ 603.5		$ 603.5		481.4
Percent of Revenue Contributed	100.00%	100.00%	100.00%	100.00%
Sales Commission Amortization Period Maximum	5 years
Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	7.00%	8.00%	7.00%	8.00%
UNITED STATES
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	82.00%	78.00%	79.00%	78.00%
CANADA
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	2.00%	3.00%	2.00%	3.00%
UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	4.00%	5.00%	5.00%	4.00%
SWITZERLAND
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	4.00%	4.00%	4.00%	5.00%
Europe [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	2.00%	3.00%	3.00%	3.00%
Other countries [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	6.00%	7.00%	7.00%	7.00%
LabCorp Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	68.00%	60.00%	63.00%	61.00%
LabCorp Diagnostics [Member] | Client [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	22.00%	17.00%	20.00%	17.00%
LabCorp Diagnostics [Member] | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	5.00%	8.00%	6.00%	8.00%
LabCorp Diagnostics [Member] | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	34.00%	27.00%	30.00%	28.00%
LabCorp Diagnostics [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	66.00%	57.00%	61.00%	58.00%
LabCorp Diagnostics [Member] | UNITED STATES | Client [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	21.00%	16.00%	19.00%	16.00%
LabCorp Diagnostics [Member] | UNITED STATES | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	5.00%	8.00%	6.00%	8.00%
LabCorp Diagnostics [Member] | UNITED STATES | Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	7.00%	8.00%	7.00%	8.00%
LabCorp Diagnostics [Member] | UNITED STATES | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	33.00%	25.00%	29.00%	26.00%
LabCorp Diagnostics [Member] | CANADA
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	2.00%	3.00%	2.00%	3.00%
LabCorp Diagnostics [Member] | CANADA | Client [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	1.00%	1.00%	1.00%	1.00%
LabCorp Diagnostics [Member] | CANADA | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | CANADA | Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | CANADA | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	1.00%	2.00%	1.00%	2.00%
LabCorp Diagnostics [Member] | UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | UNITED KINGDOM | Client [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | UNITED KINGDOM | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | UNITED KINGDOM | Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | UNITED KINGDOM | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | SWITZERLAND
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | SWITZERLAND | Client [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | SWITZERLAND | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | SWITZERLAND | Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | SWITZERLAND | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Europe [Member] | Client [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Europe [Member] | Self-Pay [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Europe [Member] | Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Europe [Member] | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Other countries [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Other countries [Member] | Medicare and Medicaid [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
LabCorp Diagnostics [Member] | Other countries [Member] | Third party [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
Covance Drug Development [Member]
Disaggregation of Revenue [Line Items]
Unbilled Contracts Receivable	$ 834.0		$ 834.0		$ 771.1
Percent of Revenue Contributed	32.00%		37.00%
Covance Drug Development [Member] | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	32.00%	40.00%	37.00%	39.00%
Covance Drug Development [Member] | UNITED STATES | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	16.00%	21.00%	18.00%	20.00%
Covance Drug Development [Member] | CANADA | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	0.00%	0.00%	0.00%	0.00%
Covance Drug Development [Member] | UNITED KINGDOM | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	4.00%	5.00%	5.00%	4.00%
Covance Drug Development [Member] | SWITZERLAND | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	4.00%	4.00%	4.00%	5.00%
Covance Drug Development [Member] | Europe [Member] | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	2.00%	3.00%	3.00%	3.00%
Covance Drug Development [Member] | Other countries [Member] | Biopharmaceutical and medical device companies [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue Contributed	6.00%	7.00%	7.00%	7.00%
Minimum [Member]
Disaggregation of Revenue [Line Items]
Capitalized Contract Cost, Amortization Period	2 years		2 years
Maximum [Member]
Disaggregation of Revenue [Line Items]
Capitalized Contract Cost, Amortization Period	5 years		5 years
Notes Receivable [Member]
Disaggregation of Revenue [Line Items]
Current Expected Credit Losses Opening Balance Sheet Impact on Retained Earnings			$ 5.0
Allowance for Credit Loss, Write Off			0.0
Unbilled Contracts Receivable [Member]
Disaggregation of Revenue [Line Items]
Current Expected Credit Losses Opening Balance Sheet Impact on Retained Earnings			0.2
Allowance for Credit Loss, Write Off			0.1
Accounts Receivable [Member]
Disaggregation of Revenue [Line Items]
Current Expected Credit Losses Opening Balance Sheet Impact on Retained Earnings			1.8
Allowance for Credit Loss, Write Off			$ 4.2

XML

Leases (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Operating Lease, Liability, Current	$ 193.8	$ 206.5
Operating Lease, Liability, Noncurrent	602.4	596.6
Finance Lease, Liability, Current	7.4	8.4
Finance Lease, Liability, Noncurrent	$ 86.3	$ 91.1

XML

Label	Element	Value
AOCI Attributable to Parent [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Retained Earnings (Accumulated Deficit)	us-gaap_RetainedEarningsAccumulatedDeficit	$ 0
Common Stock [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Retained Earnings (Accumulated Deficit)	us-gaap_RetainedEarningsAccumulatedDeficit	0
Additional Paid-in Capital [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Retained Earnings (Accumulated Deficit)	us-gaap_RetainedEarningsAccumulatedDeficit	0
Treasury Stock [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Retained Earnings (Accumulated Deficit)	us-gaap_RetainedEarningsAccumulatedDeficit	0
Retained Earnings [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Retained Earnings (Accumulated Deficit)	us-gaap_RetainedEarningsAccumulatedDeficit	$ (7,000,000.0)