Equity - Common Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares issued, beginning of period (in shares)	913,715,512	908,733,000	896,279,000
Restricted stock issuances (net of forfeitures and cancellations) (in shares)	4,146,000	4,983,000	2,488,000
Common stock, shares issued, end of period (in shares)	1,954,558,617	913,715,512	908,733,000
Common stock, shares authorized (in shares)	3,000,000,000	2,000,000,000
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for WildHorse Merger (in shares)	$ 7,000	$ 0	$ 0
Common Stock | Senior notes exchanged for shares of common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued, conversion (in shares)	235,564,000	0	0
Common Stock | Convertible notes exchanged for shares of common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued, conversion (in shares)	73,389,000	0	0
Common Stock | Preferred stock exchanged for shares of common stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued, conversion (in shares)	10,367,950	0	9,966,000
Wildhorse resource development corporation
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for WildHorse Merger (in shares)	$ 717,376	$ 0	$ 0