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- Definition

Asset Acquisition, Consideration Percentage

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- Definition

Asset Acquisition, Consideration Transferred, Common Units, Weighted Average Sales Price

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- Definition

Asset Acquisition, Consideration Transferred, Equity Interests Issued and Issuable

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- Definition

Asset Acquisition, Number Of Trading Days

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- Definition

Equity Method Investment, Ownership Percentage Acquired

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- Definition

Payments To Acquire Asset, Gross

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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- Definition

Number of common units issued of limited liability company (LLC).

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- Definition

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

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- 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

The number of general partner units issued.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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- Definition

Amount, after tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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Acquisitions and Other Transactions - June 2019 Acquisitions (Details) $ / shares in Units, $ in Millions		12 Months Ended
	Jun. 06, 2019 USD ($) trading_day $ / shares shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Asset Acquisition [Line Items]
Remeasurements of pension and other postretirement benefits related to equity method investments, net of tax		$ (1)	$ 1	$ 2
Number of trading days \| trading_day	5
Explorer
Asset Acquisition [Line Items]
Ownership		38.59%	38.59%
Colonial
Asset Acquisition [Line Items]
Ownership		16.125%	16.125%
June 2019 Acquisition
Asset Acquisition [Line Items]
Consideration transferred	$ 800
Equity method investment, aggregate cost	90
Remeasurements of pension and other postretirement benefits related to equity method investments, net of tax	6
Capital distribution to general partner	510
Non-cash equity consideration	$ 200
Total consideration percentage (in percent)	25.00%
Common units, weighted average sales price (in dollars per share) \| $ / shares	$ 20.68
General partners' capital account, units issued (in units) \| shares	193,424
June 2019 Acquisition \| Subsidiary \| Shell Midstream LP Holdings LLC
Asset Acquisition [Line Items]
Common units issued (in shares) \| shares	9,477,756
June 2019 Acquisition \| General Partner SPLC \| Shell Midstream Partners L.P.
Asset Acquisition [Line Items]
Noncontrolling interest	2.00%
June 2019 Acquisition \| Revolving Credit Facility \| Shell Treasury Center West Inc \| Ten Year Fixed Facility
Asset Acquisition [Line Items]
Consideration, cash on hand	$ 600
June 2019 Acquisition \| Explorer
Asset Acquisition [Line Items]
Equity method investments, ownership interest acquired	25.97%
Ownership		38.59%
June 2019 Acquisition \| Colonial
Asset Acquisition [Line Items]
Equity method investments, ownership interest acquired	10.125%
Ownership		16.125%