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Partners' Capital and Distributions - Preferred Unit Distributions (Details) - USD ($) $ in Millions		12 Months Ended
	Feb. 14, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Partners Capital and Distribution [Line Items]
Number of days after end of quarter within which distributions must be paid to unitholders		45 days
Cash Distribution | Series A Preferred Units
Partners Capital and Distribution [Line Items]
Preferred unit dividends		$ 149	$ 149	$ 149
Cash Distribution | Series B Preferred Units
Partners Capital and Distribution [Line Items]
Preferred unit dividends		49	$ 49	$ 49
Other current liabilities | Series B Preferred Units
Partners Capital and Distribution [Line Items]
Dividends payable		$ 6
Other current liabilities | Subsequent Event | Cash Distribution | Series A Preferred Units
Partners Capital and Distribution [Line Items]
Preferred unit dividends	$ 37

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- Definition

The number of days after the end of the relevant quarter within which distributions of available cash must be paid to unitholders.

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- Definition

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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