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- Definition

Asset Acquisition, Consideration Transferred

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

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Asset Acquisition, Consideration Transferred, Equity Interests Issued and Issuable

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Asset Acquisition

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Asset Acquisition, Number Of Trading Days, Volume Weighted Average Sales Price Calculated

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Asset Acquisition, Ownership Percentage Acquired

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- Definition

Payments To Acquire Asset, Gross

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

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

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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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The number of general partner units issued.

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

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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) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
	Jun. 06, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Asset Acquisition [Line Items]
Remeasurements of pension and other postretirement benefits related to equity method investments, net of tax		$ (2)	$ 0	$ (2)	$ 0
June 2019 Acquisition
Asset Acquisition [Line Items]
Consideration transferred	$ 800
Historical carrying value of net assets under common control	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
Common units, weighted average sales price (in dollars per unit)	$ 20.68
Number of trading days the volume weighted average sales price of common units is calculated	5 days
General partners' capital account, units issued (in shares)	193,424
General Partner SPLC \| June 2019 Acquisition \| Partnership Ownership
Asset Acquisition [Line Items]
Noncontrolling interest	2.00%
Subsidiary \| Shell Midstream LP Holdings LLC \| June 2019 Acquisition
Asset Acquisition [Line Items]
Common units issued (in shares)	9,477,756
Revolving Credit Facility \| Shell Treasury Center West Inc \| Ten Year Fixed Facility \| June 2019 Acquisition
Asset Acquisition [Line Items]
Consideration, cash on hand	$ 600
Explorer \| June 2019 Acquisition
Asset Acquisition [Line Items]
Equity method investment, ownership interest acquired	25.97%
Ownership		38.59%		38.59%
Colonial Pipeline Company (“Colonial”) \| June 2019 Acquisition
Asset Acquisition [Line Items]
Equity method investment, ownership interest acquired	10.125%
Ownership		16.125%		16.125%