v3.19.3

Partners' Capital and Distributions (Schedule of Capital Units) (Details)	9 Months Ended
	Sep. 30, 2019 director shares
Increase (Decrease) in Partners' Capital [Roll Forward]
Limited partner units outstanding, beginning balance (in shares)	228,195,160
Limited partner units outstanding, ending balance (in shares)	228,403,428
Management [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
During 2019–Other (in shares)	199,792
Director [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
During 2019–Other (in shares)	8,476
Partners' Capital Account, Unit-based Payment Arrangement, Number Of Independent Directors | director	4

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- Definition

Partners' Capital Account, Unit-based Payment Arrangement, Number Of Independent Directors

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

The number of limited partner units outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

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Number of units issued for unit-based payment arrangement issued by partnership. Partner includes, but is not limited to, general, limited and preferred partners.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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