Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 522	$ 858
Receivables, less reserve of $23 and $11	620	1,122
Inventories	77	72
Derivative assets	79	9
Other current assets	107	74
Total current assets	1,405	2,135
Equity method investments	476	663
Property, plant and equipment, less accumulated depreciation, depletion and amortization of $19,216 and $18,003	16,424	17,000
Goodwill	0	95
Other noncurrent assets	262	352
Total assets	18,567	20,245
Current liabilities:
Accounts payable	696	1,307
Payroll and benefits payable	76	112
Accrued taxes	77	118
Other current liabilities	216	208
Total current liabilities	1,065	1,745
Long-term debt	5,503	5,501
Deferred tax liabilities	171	186
Defined benefit postretirement plan obligations	194	183
Asset retirement obligations	242	243
Deferred credits and other liabilities	217	234
Total liabilities	7,392	8,092
Commitments and contingencies
Stockholders’ Equity
Preferred stock – no shares issued or outstanding (no par value, 26 million shares authorized)	0	0
Common stock:
Issued – 937 million shares (par value $1 per share, 1.925 billion shares authorized at June 30, 2020 and December 31, 2019)	937	937
Held in treasury, at cost – 147 million shares and 141 million shares	(4,087)	(4,089)
Additional paid-in capital	7,143	7,207
Retained earnings	7,145	7,993
Accumulated other comprehensive income	37	105
Total stockholders’ equity	11,175	12,153
Total liabilities and stockholders’ equity	$ 18,567	$ 20,245