Percentage of decrease in terminal growth rate.

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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 expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

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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 foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of transfers into (out 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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Amount of divestiture 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 impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Percentage of fair value of reporting unit in excess of carrying amount.

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No definition available.

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Discount rate used to obtain present value of liability for unpaid claim and claim adjustment expense for short-duration contract issued by insurance entity.

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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Changes in the carrying amount of goodwill
Beginning goodwill	$ 7,251.7
Prior year business combinations	(0.1)
Dispositions	(3.2)
Effect of foreign currency translation	(16.9)
Ending goodwill	7,231.5		$ 7,251.7
Future estimated amortization expense related to amortizable other identifiable intangible assets
Estimated expense remaining for the three-month period	240.0
Total amortization expense related to other intangible assets	80.3	$ 79.8
Previously Reported
Changes in the carrying amount of goodwill
Beginning goodwill	7,251.7
Ending goodwill			7,251.7
Nalco \| Trademarks
Changes in the carrying amount of goodwill
Impairment of indefinite life intangible asset	0.0
Global Industrial
Changes in the carrying amount of goodwill
Beginning goodwill	3,923.8
Segment changes			1,124.6
Effect of foreign currency translation	(10.2)
Ending goodwill	3,913.6		3,923.8
Global Industrial \| Previously Reported
Changes in the carrying amount of goodwill
Beginning goodwill	2,799.2
Ending goodwill			2,799.2
Global Institutional
Changes in the carrying amount of goodwill
Beginning goodwill	548.3
Segment changes			(599.4)
Effect of foreign currency translation	(0.6)
Ending goodwill	547.7		548.3
Global Institutional \| Previously Reported
Changes in the carrying amount of goodwill
Beginning goodwill	1,147.7
Ending goodwill			1,147.7
Global Healthcare and Life Sciences
Changes in the carrying amount of goodwill
Beginning goodwill	859.3
Segment changes			859.3
Prior year business combinations	(0.1)
Effect of foreign currency translation	(1.8)
Ending goodwill	857.4		859.3
Upstream Energy
Changes in the carrying amount of goodwill
Beginning goodwill	1,682.6
Segment changes			1,682.6
Dispositions	(3.2)
Effect of foreign currency translation	(3.9)
Ending goodwill	$ 1,675.5		1,682.6
Percentage of fair value in excess of carrying amount	30.00%
Fair value input, discount rate (as a percent)	1.00%
Percentage of decrease in terminal growth rate	1.00%
Global Energy
Changes in the carrying amount of goodwill
Segment changes			(3,100.5)
Global Energy \| Previously Reported
Changes in the carrying amount of goodwill
Beginning goodwill	$ 3,100.5
Ending goodwill			3,100.5
Other
Changes in the carrying amount of goodwill
Beginning goodwill	237.7
Segment changes			33.4
Effect of foreign currency translation	(0.4)
Ending goodwill	237.3		237.7
Other \| Previously Reported
Changes in the carrying amount of goodwill
Beginning goodwill	$ 204.3
Ending goodwill			$ 204.3