SUPPLEMENTAL FINANCIAL INFORMATION - Other Non-Current Assets (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Supplemental Financial Information [Abstract]
Equity investments (Note 9)	$ 1,936	$ 1,736
Operating leases	1,604	1,224
Inventories (Note 12)	1,681	1,569
Pension and postretirement	281	234
Research and development	260	336
Receivables and convertible notes	16	452
Other	554	554
Other non-current assets	$ 6,332	$ 6,105

Equity Investments, Noncurrent

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Research And Development - Non-Current

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Supplemental Financial Information [Abstract]

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

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Amount, after allowance for credit loss, of accounts and financing receivables, classified as noncurrent. Includes, but is not limited to, notes and loan receivable.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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Amount of noncurrent assets classified as other.

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