Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 817
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	817	$ 858
Receivables, less reserve of $30 and $11	703	1,122
Inventories	78	72
Other current assets	118	74
Total current assets	1,909	2,135
Equity method investments	628	663
Property, plant and equipment, less accumulated depreciation, depletion and amortization of $18,641 and $18,003	16,903	17,000
Goodwill	0	95
Other noncurrent assets	275	352
Total assets	19,715	20,245
Current liabilities:
Accounts payable	1,104	1,307
Payroll and benefits payable	68	112
Accrued taxes	72	118
Other current liabilities	198	208
Total current liabilities	1,442	1,745
Long-term debt	5,502	5,501
Deferred tax liabilities	185	186
Defined benefit postretirement plan obligations	172	183
Asset retirement obligations	236	243
Deferred credits and other liabilities	220	234
Total liabilities	7,757	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 March 31, 2020 and December 31, 2019)	937	937
Held in treasury, at cost – 146 million shares and 141 million shares	(4,059)	(4,089)
Additional paid-in capital	7,102	7,207
Retained earnings	7,895	7,993
Accumulated other comprehensive income	83	105
Total stockholders’ equity	11,958	12,153
Total liabilities and stockholders’ equity	$ 19,715	$ 20,245