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CONDENSED CONSOLIDATED STATEMENT OF PARTNERS' CAPITAL (USD $) In Millions, except Share data, unless otherwise specified	Total	Common Units	General Partner	Partners' Capital Excluding Noncontrolling Interests	Noncontrolling Interests
Balance at Dec. 31, 2011	$ 5,974	$ 5,249	$ 201	$ 5,450	$ 524
Balance (in units) at Dec. 31, 2011	155,376,937	155,400,000
Increase (Decrease) in Partners' Capital
Net income	624	465	144	609	15
Distributions	(487)	(328)	(135)	(463)	(24)
Issuance of common units	535	524	11	535
Issuance of common units (in units)		6,800,000
Issuance of common units under LTIP	34	33	1	34
Issuance of common units under LTIP (in units)		400,000
Equity compensation expense	14	8	5	13	1
Other comprehensive loss	(49)	(42)	(1)	(43)	(6)
Balance at Jun. 30, 2012	$ 6,645	$ 5,909	$ 226	$ 6,135	$ 510
Balance (in units) at Jun. 30, 2012	162,586,381	162,600,000

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