Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	[1]	Sep. 30, 2018	[1]	Jun. 30, 2018	[1]	Mar. 31, 2018	[1]	Dec. 31, 2017	[1]
Current assets
Cash and cash equivalents		$ 117,430			$ 92,142		$ 132,877						$ 79,588
Accounts receivable, net	[2]	232,818			221,164
Other current assets	[3]	42,990			31,458
Total current assets		393,238			344,764
Note receivable - Anadarko		260,000			260,000
Property, plant, and equipment
Cost		12,109,923			11,258,773
Less accumulated depreciation		3,176,089			2,848,420
Net property, plant, and equipment		8,933,834			8,410,353
Goodwill		445,800			445,800
Other intangible assets		817,395			841,408
Equity investments		1,264,695			1,092,088
Other assets	[4]	63,263			62,792
Total assets		12,178,225			11,457,205
Current liabilities
Accounts and imbalance payables		273,579			443,343
Short-term debt	[5]	8,128			28,000
Accrued ad valorem taxes		45,771			36,986
Accrued liabilities		269,394			129,148
Total current liabilities		596,872			637,477
Long-term liabilities
Long-term debt		7,730,502			4,787,381
APCWH Note Payable	[6]	0			427,493
Deferred income taxes		17,890			280,017
Asset retirement obligations		319,178			300,024
Other liabilities	[7]	178,708			132,130
Total long-term liabilities		8,246,278			5,927,045
Total liabilities		8,843,150			6,564,522
Equity and partners' capital
Common units (453,032,050 and 218,937,797 units issued and outstanding at September 30, 2019, and December 31, 2018, respectively)		3,182,917			951,888
Net investment by Anadarko		0			1,388,018
Total partners' capital		3,182,917			2,339,906
Noncontrolling interests		152,158			2,552,777
Total equity and partners' capital		3,335,075	$ 3,491,210	$ 3,591,541	4,892,683		$ 4,989,843		$ 4,946,670		$ 4,994,493		$ 4,995,050
Total liabilities, equity and partners' capital		$ 12,178,225			$ 11,457,205

[1] Financial information has been recast to include the financial position and results attributable to AMA. See Note 1 and Note 3.

[2] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $91.9 million and $72.6 million as of September 30, 2019, and December 31, 2018, respectively.

[3] Other current assets includes affiliate amounts of $0.8 million and $3.7 million as of September 30, 2019, and December 31, 2018, respectively.

[4] Other assets includes affiliate amounts of $44.3 million and $42.2 million as of September 30, 2019, and December 31, 2018, respectively. Other assets also includes $3.6 million and $5.3 million of NGLs line fill as of September 30, 2019, and December 31, 2018, respectively.

[5] As of September 30, 2019, all amounts are considered affiliate. See Note 11.

[6] See Note 1 and Note 6.

[7] Other liabilities includes affiliate amounts of $87.0 million and $47.8 million as of September 30, 2019, and December 31, 2018, respectively.