DEBT - Aggregate Maturities of Long-Term Debt (Details) $ in Millions	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
2024	$ 1,651
2025	2,381
2026	3,098
2027	1,487
2028	2,601
Interest Obligations on Debt
Debt Instrument [Line Items]
2024	1,167
2025	1,124
2026	1,038
2027	987
2028	951
Senior Notes
Debt Instrument [Line Items]
2024	484
2025	1,137
2026	2,000
2027	500
2028	1,650
Unsecured Debt \| Guardian Pipeline
Debt Instrument [Line Items]
2024	0
2025	120
2026	0
2027	0
2028	0
Unsecured Debt \| Viking Pipeline
Debt Instrument [Line Items]
2024	0
2025	0
2026	60
2027	0
2028	$ 0

Total Aggregate Maturities of Long-Term Debt Outstanding and Interest Obligations on Debt, Year Five

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Total Aggregate Maturities of Long-term Debt Outstanding and Interest Obligations on Debt, Year One

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Total Aggregate Maturities of Long-Term Debt Outstanding and Interest Obligations on Debt, Year Three

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