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Partners' Capital and Distributions - Activity for Series A and B Preferred Units and Common Units (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Series A Preferred Units
Activity for preferred units and common units
Outstanding, beginning of period (in units)	71,090,468	71,090,468	71,090,468
Outstanding, end of period (in units)	71,090,468	71,090,468	71,090,468
Series B Preferred Units
Activity for preferred units and common units
Outstanding, beginning of period (in units)	800,000	800,000	800,000
Outstanding, end of period (in units)	800,000	800,000	800,000
Common Units
Activity for preferred units and common units
Outstanding, beginning of period (in units)	704,991,540	722,380,416	728,028,576
Repurchase and cancellation of common units under the Common Equity Repurchase Program (in units)	(7,251,361)	(18,061,583)	(6,222,748)
Issuance of common units under equity-indexed compensation plans (in units)	614,319	672,707	574,588
Outstanding, end of period (in units)	698,354,498	704,991,540	722,380,416

X

- Definition

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

+ References

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- Definition

The number of limited partner units outstanding.

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- Definition

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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Number of shares that have been repurchased and retired during the period.

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