Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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DEBT (Debt Financing Transactions in Connection with the Spin-off) (Details)			3 Months Ended		9 Months Ended
	Feb. 16, 2021 USD ($)	Jan. 29, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	May 19, 2020 EUR (€)	Jan. 17, 2017 USD ($)
Line of Credit Facility
Loss on early extinguishment of debt			$ (16,000,000.0)	$ 0	$ (39,500,000)	$ 0
Line of Credit \| Senior secured revolving credit facility
Line of Credit Facility
Maximum borrowing capacity	$ 1,000,000,000							€ 500,000,000	$ 2,500,000,000
Debt instrument, term	3 years
Letter of Credit \| Senior secured revolving credit facility
Line of Credit Facility
Maximum borrowing capacity	$ 450,000,000
Senior Notes \| 6.50% Senior notes due 2026
Line of Credit Facility
Debt instrument, face amount		$ 1,000,000,000
Interest rate, stated percentage (in percent)		6.50%	6.50%		6.50%		6.50%
Long-term debt, gross			$ 835,900,000		$ 835,900,000		$ 0
Senior Notes \| 3.45% Senior Notes due 2022
Line of Credit Facility
Interest rate, stated percentage (in percent)		3.45%	3.45%		3.45%		3.45%
Long-term debt, gross		$ 500,000,000	$ 0		$ 0		$ 500,000,000.0
Loss on early extinguishment of debt		23,500,000
Synthetic bonds due 2021
Line of Credit Facility
Long-term debt, gross		$ 542,400,000	0		0		551,200,000
Commercial paper
Line of Credit Facility
Long-term debt, gross			0		0		$ 1,043,700,000
Commercial paper \| U.S. dollar
Line of Credit Facility
Maximum borrowing capacity			$ 830,900,000		$ 830,900,000