FAIR VALUE MEASUREMENTS (Summary of Recurring Measured Fair Values) (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	$ 2,031
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	250	$ 218
Debt Securities, Available-for-sale, Amortized Cost	2,248
Equity Securities, FV-NI, Current	11	14
Long-term Debt		(16,208)
Long Term Debt, Accumulated Gross Unrealized Gain, Before Tax		1,487
Long Term Debt, Accumulated Gross Unrealized Loss, Before Tax		(484)
Long Term Debt, Accumulated Fair Value Adjustment	29	9
Derivative, Amount of Hedged Item	5,255	5,129
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, Amortized Cost Basis	4	4
Equity Securities, Accumulated Gross Unrealized Gain, Before Tax	7	10
Equity Securities, Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 1 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities, Accumulated Gross Unrealized Gain, Before Tax	0	0
Derivative Liabilities, Accumulated Gross Unrealized Loss, Before Tax	(2)	(1)
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	8	4
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	18	18
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(1)	(1)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	(16,434)	(16,208)
Long Term Debt, Accumulated Gross Unrealized Gain, Before Tax	1,520	1,487
Long Term Debt, Accumulated Gross Unrealized Loss, Before Tax	(462)	(484)
Available-for-sale Debt Securities, Amortized Cost Basis, Current	393	453
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, Current, before Tax	0	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, Current, before Tax	(53)	(70)
Fair Value, Inputs, Level 2 [Member] | Held-to-maturity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, at Carrying Value	114	96
Cash Equivalents, Accumulated Gross Unrealized Gain, Before Tax	0	0
Cash Equivalents, Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 2 [Member] | Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, at Carrying Value	567	1,164
Cash Equivalents, Accumulated Gross Unrealized Gain, Before Tax	0	0
Cash Equivalents, Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities, Accumulated Gross Unrealized Gain, Before Tax	0	0
Derivative Liabilities, Accumulated Gross Unrealized Loss, Before Tax	(38)	(47)
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	53	20
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities, Accumulated Gross Unrealized Gain, Before Tax	0	0
Derivative Liabilities, Accumulated Gross Unrealized Loss, Before Tax	(328)	(142)
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	81	107
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 2 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liabilities, Accumulated Gross Unrealized Gain, Before Tax	0	0
Derivative Liabilities, Accumulated Gross Unrealized Loss, Before Tax	(80)	(64)
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	108	87
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	0	0
Fair Value, Inputs, Level 2 [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	1,107	1,103
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	13	13
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(115)	(123)
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	923	954
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	6	6
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(85)	(88)
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	200	200
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(35)	(49)
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	3,313	3,908
Total liabilities at fair value	(15,973)	(15,614)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, FV-NI, Current	11	14
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	8	4
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(2)	(1)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	17	17
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale, Current	340	383
Long-term debt including debt due within one year 6	15,376	15,205
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Held-to-maturity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	114	96
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Held-to-maturity Securities | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	97	96
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Held-to-maturity Securities | Other Current Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	17	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents, Fair Value	567	1,164
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	53	20
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(38)	(47)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	81	107
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(328)	(142)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	108	87
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	(80)	(64)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	1,005	993
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	844	872
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Private Market Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	87	90
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	14	15
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Private Market Securities and Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	80	81
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Sadara Chemical Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Guarantees, Fair Value Disclosure	(149)	(155)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-sale	$ 165	$ 151