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PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment by Property Type

The following table sets forth our property, plant and equipment by property type, as of the dates indicated:

						Estimated Useful Lives (Years)						December 31, 2022						December 31, 2021
												(Thousands of dollars)
Nonregulated
Gathering pipelines and related equipment						5 to 40						$	4,671,063					$	4,371,936
Processing and fractionation and related equipment						3 to 40						5,396,165						5,356,508
Storage and related equipment						3 to 54						926,300						874,522
Transmission pipelines and related equipment						5 to 87						756,805						726,191
General plant and other						2 to 60						716,310						678,410
Construction work in process						—						1,618,561						1,122,615
Regulated
Storage and related equipment						5 to 25						9,659						9,197
Natural gas transmission pipelines and related equipment						5 to 77						2,028,995						1,970,631
NGL transmission pipelines and related equipment						5 to 87						8,575,980						8,445,523
General plant and other						2 to 50						94,641						90,157
Construction work in process						—						220,656						174,849
Property, plant and equipment												25,015,135						23,820,539
Accumulated depreciation and amortization - nonregulated												(3,151,214)						(2,814,045)
Accumulated depreciation and amortization - regulated												(1,911,395)						(1,686,620)
Net property, plant and equipment												$	19,952,526					$	19,319,874

Average Depreciation Rates for Regulated Property

The average depreciation rates for our regulated property are set forth, by segment, in the following table for the periods indicated:

						Years Ended December 31,
						2022						2021						2020
Natural Gas Liquids						2.2%						2.2%						2.2%
Natural Gas Pipelines						2.3%						2.2%						2.2%

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- Definition

Tabular disclosure of the average depreciation rates of regulated property as of period end.

+ References

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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