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Property, Plant and Equipment (Summary of Property and Equipment, net) (Parenthetical) (Details) - USD ($) $ in Millions		Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Property Plant And Equipment [Line Items]
Other property and equipment, net	[1]	$ 1,653	$ 1,813
CDM [Member]
Property Plant And Equipment [Line Items]
Other property and equipment, net		$ 189	$ 178	$ 178
[1] $189 million and $178 million related to CDM in 2025 and 2024, respectively.

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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 7A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

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- Definition

Amount after depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

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- Details

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