Public Utilities, Property, Plant and Equipment, Net, Excluding Construction Work In Progress

No definition available.

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- Definition

Public Utilities, Property, Plant and Equipment, Plant in Service, Excluding Construction Work In Progress

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No definition available.

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- Definition

Period end book value of accumulated depreciation on property, plant and equipment (PPE) that is owned by the regulated operations of the public utility.

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No definition available.

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- Definition

Period end amount of property, plant and equipment (PPE) related to regulated assets common to business units.

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No definition available.

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- Definition

Useful life of assets common to business units owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Period end amount of construction work in progress in public utility.

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No definition available.

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- Definition

Composite depreciation rate for public utility plants in service.

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No definition available.

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- Definition

Period end amount of property, plant and equipment (PPE) related to utility distribution.

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No definition available.

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- Definition

Useful life of utility distribution assets owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Period end amount of property, plant and equipment (PPE) related to generation or processing owned by public utility.

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No definition available.

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- Definition

Useful life of utility generation assets owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Period end amount of total net PPE.

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No definition available.

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- Definition

Period end book value of other property, plant and equipment (PPE) owned (but not classified elsewhere) by the public utility.

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No definition available.

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- Definition

Useful life of other property, plant and equipment (PPE) owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Period end amount of property, plant and equipment (PPE) related to utility transmission owned by public utility.

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No definition available.

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Balance Type:	debit
Period Type:	instant

- Definition

Useful life of utility transmission equipment owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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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.

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No definition available.

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- Details

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Property, Plant and Equipment, Net - SPPC (Details) - SPPC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Public Utility, Property, Plant and Equipment [Line Items]
Construction work- in-progress	$ 236	$ 219
Property, plant and equipment, net	$ 3,587	$ 3,340
Depreciation and amortization rate	3.00%	3.10%	3.20%
Regulated assets \| Generation
Public Utility, Property, Plant and Equipment [Line Items]
Generation	$ 1,298	$ 1,163
Transmission	993	940
Distribution	1,983	1,846
General and intangible plant	$ 219	204
Regulated assets \| Generation \| Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Useful life, generation	25 years
Useful life, transmission	50 years
Useful life, distribution	20 years
Useful life, other	5 years
Regulated assets \| Generation \| Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Useful life, generation	60 years
Useful life, transmission	100 years
Useful life, distribution	100 years
Useful life, other	70 years
Regulated assets \| Natural gas
Public Utility, Property, Plant and Equipment [Line Items]
Distribution	$ 455	438
General and intangible plant	$ 15	14
Regulated assets \| Natural gas \| Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Useful life, distribution	35 years
Useful life, other	5 years
Regulated assets \| Natural gas \| Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Useful life, distribution	70 years
Useful life, other	70 years
Regulated assets \| Common Facilities
Public Utility, Property, Plant and Equipment [Line Items]
Common general	$ 380	370
Utility plant in-service	5,343	4,975
Accumulated depreciation and amortization	(1,992)	(1,854)
Utility plant in-service, net, excluding construction work-in-process	$ 3,351	$ 3,121
Regulated assets \| Common Facilities \| Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Useful life, common general	5 years
Regulated assets \| Common Facilities \| Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Useful life, common general	70 years