SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Disclosure Text Block Supplement [Abstract]
Temporary investments	$ 702		$ 702		$ 1,100
Accumulated depreciation	18,000		18,000		17,600
Depreciation expense	256	$ 262	506	$ 520
Accounts Payable, Other	66		66		106
Insurance Recoveries			25	4
Interest payments			165	$ 247
Asset retirement obligation	107		107		107
Current investments	$ 151		$ 151		$ 245

Amount of obligations incurred and payable classified as other.

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates, classified as other. Excludes cash and cash equivalents within disposal group and discontinued operation.

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