Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 1,165	$ 1,462
Receivables, less reserve of $12 and $11	1,148	1,079
Inventories	71	96
Other current assets	136	257
Current assets held for sale	0	27
Total current assets	2,520	2,921
Equity method investments	667	745
Property, plant and equipment, less accumulated depreciation, depletion and amortization of $17,366 and $21,830	16,717	16,804
Goodwill	95	97
Other noncurrent assets	374	723
Noncurrent assets held for sale	0	31
Total assets	20,373	21,321
Current liabilities:
Accounts payable	1,374	1,320
Payroll and benefits payable	92	154
Accrued taxes	86	181
Other current liabilities	227	170
Long-term debt due within one year	600	0
Current liabilities held for sale	0	7
Total current liabilities	2,379	1,832
Long-term debt	4,903	5,499
Deferred tax liabilities	183	199
Defined benefit postretirement plan obligations	174	195
Asset retirement obligations	198	1,081
Deferred credits and other liabilities	265	279
Noncurrent liabilities held for sale	0	108
Total liabilities	8,102	9,193
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 September 30, 2019 and December 31, 2018)	937	937
Held in treasury, at cost – 136 million shares and 118 million shares	(4,028)	(3,816)
Additional paid-in capital	7,197	7,238
Retained earnings	8,053	7,706
Accumulated other comprehensive income	112	63
Total stockholders’ equity	12,271	12,128
Total liabilities and stockholders’ equity	$ 20,373	$ 21,321