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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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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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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Debt instrument maturity month and year.

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Pre-tax charge related to early extinguishment of debt.

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LONG-TERM DEBT AND LINE OF CREDIT - Additional Information (Details) - USD ($)	1 Months Ended						3 Months Ended	9 Months Ended
	Oct. 31, 2021	May 31, 2021	Sep. 30, 2020	May 31, 2020	Mar. 31, 2020	Jan. 31, 2020	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Pretax charge related to early extinguishment of debt							$ 11,000,000	$ 23,000,000
Line of credit, amount outstanding									$ 0	$ 0
Senior Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Debt, maturity date						2025-01
Line of credit, maximum borrowing capacity						$ 1,500,000,000
Line of credit expiration period						5 years
9.00% debentures due 2021 \| Subsequent Event
Debt Instrument [Line Items]
Repayments of debt	$ 150,000,000
Debt instrument, interest rate, stated percentage	9.00%
Variable Rate Term Loan Mature in July 2026
Debt Instrument [Line Items]
Repayments of term loan credit facility		$ 225,000,000
Debt, maturity date		2026-07
4.00 percent due in April 2030
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage					4.00%
Debt, maturity date					2030-04
Debt issued					$ 750,000,000
Proceeds from debt, net of issuance costs					$ 732,000,000
3.25% Notes Due in March 2023
Debt Instrument [Line Items]
Repayments of debt			$ 325,000,000
Debt instrument, interest rate, stated percentage			3.25%					3.25%
Debt, maturity date			2023-03
4.70 percent due March 2021
Debt Instrument [Line Items]
Repayments of debt				$ 569,000,000
Debt instrument, interest rate, stated percentage				4.70%
Debt, maturity date				2021-03