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Date of record for distribution of cash or unit to limited partner of limited partnership (LP), in CCYY-MM-DD format.

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-Publisher FASB
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Date of declaration for distribution of cash or unit to limited partner of limited partnership (LP), in CCYY-MM-DD format.

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Date of distribution for distribution of cash or unit to limited partner of limited partnership (LP), in CCYY-MM-DD format.

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- Definition

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

+ References

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- Definition

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

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Number of units distributed for payment of a unit distribution to unit-holder of limited partnership (LP).

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The total amount of distributions to the general partner during the period.

+ References

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The total amount of distributions to limited partners.

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Total distributions to each class of partners (i.e., general, limited and preferred partners).

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Partners' Capital and Distributions - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended
	May. 13, 2016	Apr. 07, 2016	Feb. 12, 2016	Mar. 31, 2016	Mar. 31, 2015
Partners Capital and Distributions
Total distributions paid				$ 434	$ 391
Fourth Quarter Distribution
Partners Capital and Distributions
Distribution declared, date			Jan. 12, 2016
Distribution payment date			Feb. 12, 2016
Forecast \| First Quarter Distribution
Partners Capital and Distributions
Distribution payment date	May 13, 2016
Subsequent Event \| First Quarter Distribution
Partners Capital and Distributions
Distribution declared, date		Apr. 07, 2016
Unitholders of record, date		Apr. 29, 2016
Partners' Capital Excluding Noncontrolling Interests
Partners Capital and Distributions
Total distributions paid				$ 433	$ 390
Partners' Capital Excluding Noncontrolling Interests \| Cash Distributions \| Fourth Quarter Distribution
Partners Capital and Distributions
Distributions paid to General Partner			$ 155
Total distributions paid			$ 433
Partners' Capital Excluding Noncontrolling Interests \| Cash Distributions \| Forecast \| First Quarter Distribution
Partners Capital and Distributions
Distributions paid to General Partner	$ 155
Total distributions paid	433
Common Units \| Cash Distributions \| Fourth Quarter Distribution
Partners Capital and Distributions
Distributions per common unit, paid (in dollars per unit)			$ 0.70
Common Units \| Cash Distributions \| Subsequent Event \| First Quarter Distribution
Partners Capital and Distributions
Distributions per common unit, declared (in dollars per unit)		$ 0.70
Common Units \| Partners' Capital Excluding Noncontrolling Interests \| Cash Distributions \| Fourth Quarter Distribution
Partners Capital and Distributions
Distributions paid to Unitholders			$ 278
Common Units \| Partners' Capital Excluding Noncontrolling Interests \| Cash Distributions \| Forecast \| First Quarter Distribution
Partners Capital and Distributions
Distributions paid to Unitholders	278
Series A Preferred Units \| Partners' Capital Excluding Noncontrolling Interests \| In-Kind Distributions \| Forecast \| First Quarter Distribution
Partners Capital and Distributions
Distributions paid to Unitholders	$ 23
Distribution of units in lieu of cash (in units)	858,439