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.

No definition available.

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- Definition

Per unit of ownership amount of cash distributions paid to unit-holder of a limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

Amount of cash or stock or unit payment to a limited liability corporation managing member or limited partnership general partner after the end of the accounting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 73
-URI http://asc.fasb.org/extlink&oid=6926462&loc=SL5163674-159010

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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 72
-URI http://asc.fasb.org/extlink&oid=6926462&loc=SL5163672-159010

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(Deficit) Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended													12 Months Ended
	Feb. 06, 2018	Sep. 15, 2017	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Distributions declared and/or paid			$ 162	$ 140	$ 131	$ 119	$ 129	$ 121	$ 113	$ 106	$ 83	$ 77	$ 68	$ 64	$ 59
Distributions per Limited Partner unit (in dollars per share)			$ 0.46000	$ 0.44500	$ 0.43000	$ 0.41500	$ 0.40000	$ 0.38200	$ 0.36500	$ 0.34800	$ 0.33300	$ 0.31800	$ 0.30410	$ 0.29100	$ 0.27700	$ 1.7500	$ 1.4950	$ 1.2461
General Partner
Class of Stock [Line Items]
Distributions declared and/or paid			$ 3	$ 3	$ 3	$ 3	$ 3	$ 3	$ 2	$ 2	$ 2	$ 2	$ 1	$ 1	$ 1
General Partner \| General Partner Interest
Class of Stock [Line Items]
Aggregate percentage of interest																2.00%
General Partner \| Shell Pipeline Company L P \| General Partner Interest
Class of Stock [Line Items]
Aggregate percentage of interest	2.00%	2.00%														2.00%
Limited Partner \| Shell Pipeline Company L P \| Limited Partner Interest
Class of Stock [Line Items]
Aggregate percentage of interest																98.00%