The percentage by which a reporting unit's carrying value exceeds or lags its fair value.

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- Definition

Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.

+ References

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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.

+ References

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- Definition

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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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments 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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- Definition

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased and retired during the period.

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GOODWILL (Details) $ in Millions		12 Months Ended
GOODWILL (Details) $ in Millions	Sep. 14, 2018 USD ($) shares	Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($) item	Sep. 30, 2019
Goodwill [Roll Forward]
Balance at the beginning of the period		$ 4,788.7	$ 4,931.7
Adjustments			(6.4)
Currency translation adjustment		0.4	(136.6)
Balance at the end of the period		$ 4,789.1	$ 4,788.7
Principal balance	$ 600.0
Number of reporting units \| item		2	3
U.S.
Goodwill [Roll Forward]
Balance at the beginning of the period		$ 3,072.6	$ 3,072.6
Balance at the end of the period		3,072.6	3,072.6
Percentage the reporting unit's carrying value exceeds its fairvalue				9.90%
International markets
Goodwill [Roll Forward]
Balance at the beginning of the period		1,716.1	1,859.1
Adjustments			(6.4)
Currency translation adjustment		0.4	(136.6)
Balance at the end of the period		1,716.5	1,716.1
Percentage the reporting unit's carrying value exceeds its fairvalue				11.80%
2.95% Senior Unsecured Convertible Notes due 2024
Goodwill [Roll Forward]
Principal balance	$ 600.0	$ 600.0	$ 600.0
2.95% Senior Unsecured Convertible Notes due 2024 \| Class B common stock
Goodwill [Roll Forward]
Common stock repurchased and cancellation (in shares) \| shares	24,057,143