Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 858	$ 1,462
Receivables, less reserve of $11 and $11	1,122	1,079
Notes receivable	0	0
Inventories	72	96
Other current assets	83	257
Current assets held for sale	0	27
Total current assets	2,135	2,921
Equity method investments	663	745
Property, plant and equipment, less accumulated depreciation, depletion and amortization of $18,003 and $21,830	17,000	16,804
Goodwill	95	97
Other noncurrent assets	352	723
Noncurrent assets held for sale	0	31
Total assets	20,245	21,321
Current liabilities:
Accounts payable	1,307	1,320
Payroll and benefits payable	112	154
Accrued taxes	118	181
Other current liabilities	208	170
Current liabilities held for sale	0	7
Total current liabilities	1,745	1,832
Long-term debt	5,501	5,499
Deferred tax liabilities	186	199
Defined benefit postretirement plan obligations	183	195
Asset retirement obligations	243	1,081
Deferred credits and other liabilities	234	279
Noncurrent liabilities held for sale	0	108
Total liabilities	8,092	9,193
Commitments and contingencies
Stockholders’ Equity
Preferred stock – no shares issued or outstanding (no par value, 26 million shares authorized)	0	0
Issued – 937 million shares (par value $1 per share, 1.925 billion shares authorized at December 31, 2019 and December 31, 2018)	937	937
Held in treasury, at cost – 141 million shares and 118 million shares	(4,089)	(3,816)
Additional paid-in capital	7,207	7,238
Retained earnings	7,993	7,706
Accumulated other comprehensive loss	105	63
Total stockholders equity	12,153	12,128
Total liabilities and stockholders equity	$ 20,245	$ 21,321