Business Acquisition, Accounting Revision Period, Twelve Months

No definition available.

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- Definition

Ownership Percentage Acquired

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No definition available.

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Period Type:	instant

- 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

No definition available.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of assets acquired at the acquisition date.

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Business Acquisitions - Narrative (Details) - USD ($) $ in Millions					12 Months Ended
	Jul. 14, 2021	Nov. 02, 2020	Nov. 01, 2020	Oct. 05, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 03, 2020
Business Acquisition [Line Items]
Revenues					$ 25,150	$ 20,952	$ 19,844
Net income attributable to parent					5,790	6,943	2,950
Goodwill					11,650	11,506	9,722
Acquisitions, net of cash acquired					$ 122	2,397	$ 27
Iroquois Gas Transmission System, L.P.
Business Acquisition [Line Items]
Equity method investment, ownership percentage					50.00%
Natural Gas Transmission and Storage
Business Acquisition [Line Items]
Payments to acquire businesses			$ 2,500
Long-term debt, less current portion			4,415					$ 5,600
Net income attributable to parent					$ 316	73
Transaction costs						9
Accounting revision period					12 months
Goodwill			1,741
Assets acquired			13,403
Liabilities assumed			$ 6,973
Natural Gas Transmission and Storage \| Natural Gas
Business Acquisition [Line Items]
Revenues					$ 2,159	$ 331
Natural Gas Transmission and Storage \| Goodwill
Business Acquisition [Line Items]
Useful life, intangible asset			15 years
Natural Gas Transmission and Storage \| Domestic Tax Authority and State and Local Jurisdiction
Business Acquisition [Line Items]
Goodwill			$ 900
Natural Gas Transmission and Storage \| Primary Beneficiary \| Cove Point LNG, LP \| Other Ownership Interest
Business Acquisition [Line Items]
Variable interest entity, ownership percentage			25.00%		25.00%
Natural Gas Transmission and Storage \| Primary Beneficiary \| Cove Point LNG, LP \| General Partner
Business Acquisition [Line Items]
Variable interest entity, ownership percentage			100.00%		100.00%
Natural Gas Transmission and Storage \| Primary Beneficiary \| Cove Point LNG, LP \| Limited Partner
Business Acquisition [Line Items]
Variable interest entity, ownership percentage			25.00%		25.00%
Natural Gas Transmission and Storage \| Iroquois Gas Transmission System, L.P.
Business Acquisition [Line Items]
Equity method investment, ownership percentage			50.00%
Natural Gas Transmission and Storage \| Eastern Gas Transmission, Inc.
Business Acquisition [Line Items]
Ownership percentage acquired			100.00%
Natural Gas Transmission and Storage \| Carolina Gas Transmission, LLC
Business Acquisition [Line Items]
Ownership percentage acquired			100.00%
Questar Pipeline Group and Dominion Questar Transaction
Business Acquisition [Line Items]
Payments to acquire businesses	$ 1,300	$ 1,300		$ 1,300
Long-term debt, less current portion				$ 430
Various acquisitions
Business Acquisition [Line Items]
Goodwill					$ 129
Acquisitions, net of cash acquired					122
Assets acquired					54
Liabilities assumed					$ 61