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Leases - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) mi | Dec. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items] |  |
Right of Use Asset | $ 498 | $ 505
Right-of-use asset recognized as non-cash asset addition | 56 | 74
Cash paid for amounts included in measurement of operating lease liabilities | $ 78 | $ 76
State of Georgia |  |
Lessee, Lease, Description [Line Items] |  |
Term of lease agreement | 50 years |
Number of miles of right-of-way with integral equipment leased | mi | 137 |
Percentage of annual increase in operating lease | 2.50% |
Maximum | Other parties |  |
Lessee, Lease, Description [Line Items] |  |
Term of lease agreement | 50 years |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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