Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents		$ 99,962	$ 92,142	$ 79,588	$ 359,072
Accounts receivable, net	[1]	260,512	221,164
Other current assets	[2]	41,938	31,458
Total current assets		402,412	344,764
Note receivable - Anadarko		260,000	260,000
Property, plant, and equipment
Cost		12,355,671	11,258,773
Less accumulated depreciation		3,290,740	2,848,420
Net property, plant, and equipment		9,064,931	8,410,353
Goodwill		445,800	445,800
Other intangible assets		809,391	841,408
Equity investments		1,285,717	1,092,088	817,352
Other assets	[3]	78,202	62,792
Total assets		12,346,453	11,457,205
Current liabilities
Accounts and imbalance payables		293,128	443,343
Short-term debt	[4]	7,873	28,000
Accrued ad valorem taxes		35,160	36,986
Accrued liabilities	[5]	149,793	129,148
Total current liabilities		485,954	637,477
Long-term liabilities
Long-term debt		7,951,565	4,787,381
APCWH Note Payable	[6]	0	427,493
Deferred income taxes		18,899	280,017
Asset retirement obligations		336,396	300,024
Other liabilities	[7]	208,346	132,130
Total long-term liabilities		8,515,206	5,927,045
Total liabilities		9,001,160	6,564,522
Equity and partners' capital
Common units (443,971,409 and 218,937,797 units issued and outstanding at December 31, 2019 and 2018, respectively)		3,209,947	951,888
General partner units (9,060,641 and zero units issued and outstanding at December 31, 2019 and 2018, respectively)	[8]	(14,224)	0
Net investment by Anadarko		0	1,388,018
Total partners' capital		3,195,723	2,339,906
Noncontrolling interests		149,570	2,552,777
Total equity and partners' capital		3,345,293	4,892,683	$ 4,995,050	$ 4,872,656
Total liabilities, equity and partners' capital		$ 12,346,453	$ 11,457,205

[1] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $113.3 million and $72.6 million as of December 31, 2019 and 2018, respectively.

[2] Other current assets includes affiliate amounts of $5.0 million and $3.7 million as of December 31, 2019 and 2018, respectively.

[3] Other assets includes affiliate amounts of $60.2 million and $42.2 million as of December 31, 2019 and 2018, respectively. Other assets also includes $4.5 million and $5.3 million of NGLs line fill as of December 31, 2019 and 2018, respectively.

[4] As of December 31, 2019, all amounts are considered affiliate. See Note 14.

[5] Accrued liabilities includes affiliate amounts of $3.1 million and $2.2 million as of December 31, 2019 and 2018, respectively.

[6] See Note 1 and Note 6.

[7] Other liabilities includes affiliate amounts of $97.8 million and $47.8 million as of December 31, 2019 and 2018, respectively.

[8] See Note 1.