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Property, Plant, and Equipment and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
Schedule of Property, Plant and Equipment | The following is a summary of Property, plant, and equipment by classification:
| Average Estimated Useful Life |  | December 31,
|  | 2023 |  | 2022
| (years) |  | (millions)
Property, plant, and equipment |  |  |  |  |
Land and other non-depreciable assets | N/A |  | $ | 96 |  |  | $ | 97 |
Rights of way and easements | 25 to 40 |  | 103 |  |  | 103 |
Pipelines and interconnects | 25 to 40 |  | 3,460 |  |  | 2,845 |
Facilities and processing plants | 7 to 40 |  | 1,234 |  |  | 998 |
Wells and well equipment | 40 to 70 |  | 70 |  |  | 70 |
General plant | 3 to 40 |  | 40 |  |  | 32 |
Construction in progress | N/A |  | 279 |  |  | 389 |
Total Property, plant, and equipment |  |  | $ | 5,282 |  |  | $ | 4,534 |
Less accumulated depreciation |  |  | (848) |  |  | (728) |
Net Property, plant, and equipment |  |  | $ | 4,434 |  |  | $ | 3,806 |
Schedule of Intangible Assets | The following is a summary of Intangible Assets by classification:
|  |  | December 31, 2023 |  | December 31, 2022
| Useful Lives |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Carrying Value |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Carrying Value
|  |  | (millions)
Intangible assets subject to amortization |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | 25 - 40 years (a) |  | $ | 2,252 |  |  | $ | (289) |  |  | $ | 1,963 |  |  | $ | 2,252 |  |  | $ | (233) |  |  | $ | 2,019 |
Contract intangibles | 14 - 26 years |  | 18 |  |  | (13) |  |  | 5 |  |  | 18 |  |  | (12) |  |  | 6 |
Total |  |  | $ | 2,270 |  |  | $ | (302) |  |  | $ | 1,968 |  |  | $ | 2,270 |  |  | $ | (245) |  |  | $ | 2,025 |
_____________________________________ (a) The useful lives of the customer relationship intangible assets are based on the number of years in which the assets are expected to economically contribute to the business. The expected economic benefit incorporates existing customer contracts and expected renewal rates based on the estimated volume and production lives of natural gas resources in each region.
Schedule of Estimated Intangibles Assets Amortization Expense | The following table summarizes estimated customer relationships and contract intangibles amortization expense to be recognized during each year through 2028:
| 2024 |  | 2025 |  | 2026 |  | 2027 |  | 2028
| (millions)
Estimated amortization expense | $ | 57 |  |  | $ | 57 |  |  | $ | 57 |  |  | $ | 57 |  |  | $ | 57 |
Schedule of Depreciation and Amortization | The following is a summary of depreciation and amortization expense by asset type:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (millions)
Property, plant, and equipment | $ | 125 |  |  | $ | 113 |  |  | $ | 108 |
Customer relationships and other intangible assets, net | 57 |  |  | 57 |  |  | 58 |
Total Depreciation and amortization | $ | 182 |  |  | $ | 170 |  |  | $ | 166 |

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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 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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