CONSOLIDATED STATEMENT OF CHANGES IN PARTNERS' EQUITY - 3 months ended Mar. 31, 2019 - USD ($) shares in Millions, $ in Millions	Limited Partners Common units	Limited Partners Class B units	General Partner	Accumulated Other Comprehensive Income	[1]	Non-controlling interest	Total
Partners' Equity at beginning of period at Dec. 31, 2018	$ 462	$ 108	$ 13	$ 8		$ 108	$ 699
Partners' Equity at beginning of period (in units) at Dec. 31, 2018	71.3	1.9
Increase (Decrease) in Partners' Equity
Net income	$ 91		2			7	100
Other comprehensive income				(5)			(5)
Distributions (Note 10)	(46)	$ (13)	(1)			(7)	(67)
Partners' Equity at end of period at Mar. 31, 2019	$ 507	$ 95	$ 14	$ 3		$ 108	$ 727
Partners' Equity at end of period (in units) at Mar. 31, 2019	71.3	1.9

[1] Gain (Losses) related to cash flow hedges reported in AOCI and expected to be reclassified to Net income in the next 12 months are estimated to be $1 million. These estimates assume constant interest rates over time; however, the amounts reclassified will vary based on actual value of interest rates at the date of settlement.