NOTES PAYABLE, FINANCE LEASES, AND COMMERCIAL BANK FINANCING (Details)	3 Months Ended
Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Borrowings under revolving credit facility exceed total commitments (as a percent)	35.00%
Current portion of notes payable, finance leases, and commercial bank financing	$ 36,000,000	$ 69,000,000
Notes payable, finance leases, and commercial bank financing, less current portion	4,362,000,000	12,271,000,000
Consolidated total debt	$ 4,398,000,000
Recourse Debt Of Variable Interest Entities \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Consolidated VIEs
Debt Instrument [Line Items]
Consolidated total debt	$ 9,000,000	9,000,000
Guarantee Obligations
Debt Instrument [Line Items]
Unconditional and irrevocably guaranteed debt	38,000,000	39,000,000
Affiliated Entity
Debt Instrument [Line Items]
Current portion of notes payable, finance leases, and commercial bank financing	2,000,000	3,000,000
Notes payable, finance leases, and commercial bank financing, less current portion	$ 6,000,000	$ 6,000,000
STG Revolving Credit Facility
Debt Instrument [Line Items]
First lien leverage ratio	4.5
Borrowings outstanding	$ 0

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Amount of short-term and long-term debt and lease obligation.

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The carrying value as of the balance sheet date of the current and noncurrent portions 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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Amount of long-term debt and lease obligation, classified as noncurrent.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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