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Partners' Capital and Distributions (Tables)

3 Months Ended

Mar. 31, 2021

Limited Partners' Capital Account [Line Items]

Schedule of activity for preferred units and common units

The following tables present the activity for our preferred and common units:

			Limited Partners
			Series A Preferred Units						Series B Preferred Units						Common Units
Outstanding at December 31, 2020			71,090,468						800,000						722,380,416
Repurchase and cancellation of common units under Common Equity Repurchase Program (1)			—						—						(350,000)
Issuances of common units under equity-indexed compensation plans			—						—						25,431
Outstanding at March 31, 2021			71,090,468						800,000						722,055,847

			Limited Partners
			Series A Preferred Units						Series B Preferred Units						Common Units
Outstanding at December 31, 2019			71,090,468						800,000						728,028,576
Issuances of common units under equity-indexed compensation plans			—						—						24,431
Outstanding at March 31, 2020			71,090,468						800,000						728,053,007

(1)Trades for these units were executed in late December 2020, but settled in early January 2021.

Series A Preferred Units

Limited Partners' Capital Account [Line Items]

Schedule of distributions

The following table details distributions to our Series A preferred unitholders paid during or pertaining to the first three months of 2021 (in millions, except per unit data):

						Series A Preferred Unitholders
Distribution Payment Date						Cash Distribution									Distribution per Unit
May 14, 2021 (1)						$	37								$	0.525
February 12, 2021						$	37								$	0.525

(1)Payable to unitholders of record at the close of business on April 30, 2021 for the period from January 1, 2021 through March 31, 2021. At March 31, 2021, such amount was accrued as distributions payable in “Other current liabilities” on our Condensed Consolidated Balance Sheet.

Series B Preferred Units

Limited Partners' Capital Account [Line Items]

Schedule of distributions

The following table details distributions to be paid to our Series B preferred unitholders (in millions, except per unit data):

						Series B Preferred Unitholders
Distribution Payment Date						Cash Distribution									Distribution per Unit
May 17, 2021 (1)						$	24.5								$	30.625

(1)Payable to unitholders of record at the close of business on May 3, 2021 for the period from November 15, 2020 through May 14, 2021.

Common Units

Limited Partners' Capital Account [Line Items]

Schedule of distributions

The following table details distributions to our common unitholders paid during or pertaining to the first three months of 2021 (in millions, except per unit data):

						Distributions																					Cash Distribution per Common Unit
						Common Unitholders												Total Cash Distribution
Distribution Payment Date						Public						AAP
May 14, 2021 (1)						$	86					$	44					$	130								$	0.18
February 12, 2021						$	86					$	44					$	130								$	0.18

(1)Payable to unitholders of record at the close of business on April 30, 2021 for the period from January 1, 2021 through March 31, 2021.

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