CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 37	$ 916
Accounts receivable, net	416	428
Derivative assets	71	130
Other current assets	43	35
Total current assets	567	1,509
Natural gas and oil properties, using the full cost method, including $1,835 million as of June 30, 2018 and $1,817 million as of December 31, 2017 excluded from amortization	24,611	23,890
Gathering systems	1,322	1,315
Other	576	564
Less: Accumulated depreciation, depletion and amortization	(20,276)	(19,997)
Total property and equipment, net	6,233	5,772
Other long-term assets	242	240
TOTAL ASSETS	7,042	7,521
Current liabilities:
Accounts payable	642	533
Taxes payable	58	62
Interest payable	68	70
Dividends payable		27
Derivative liabilities	66	64
Other current liabilities	24	24
Total current liabilities	858	780
Long-term debt	3,570	4,391
Pension and other postretirement liabilities	55	58
Other long-term liabilities	309	313
Total long-term liabilities	3,934	4,762
Commitments and contingencies (Note 11)
Equity:
Common stock, $0.01 par value; 1,250,000,000 shares authorized; issued 586,430,101 shares as of June 30, 2018 and 512,134,311 as of December 31, 2017	6	5
Preferred stock, $0.01 par value, 10,000,000 shares authorized, 6.25% Series B Mandatory Convertible, $1,000 per share liquidation preference, 1,725,000 shares issued and outstanding as of December 31, 2017, converted to common stock on January 12, 2018
Additional paid-in capital	4,709	4,698
Accumulated deficit	(2,420)	(2,679)
Accumulated other comprehensive loss	(44)	(44)
Common stock in treasury, 31,269 shares as of June 30, 2018 and December 31, 2017	(1)	(1)
Total equity	2,250	1,979
TOTAL LIABILITIES AND EQUITY	$ 7,042	$ 7,521