impairment of floating rate note receivable

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- Definition

Value of Goodwill Impairment Following a Percentage Change in the Discount Rate Used to Calculate Goodwill for Reporting Unit

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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No definition available.

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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($)	3 Months Ended			9 Months Ended
GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($)	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