CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 1,111	$ 1,423
Accounts receivable, net	351	363
Derivative assets	83	51
Other current assets	34	35
Total current assets	1,579	1,872
Natural gas and oil properties, using the full cost method, including $2,034 million as of June 30, 2017 and $2,105 million as of December 31, 2016 excluded from amortization	23,248	22,653
Gathering systems	1,307	1,299
Other	553	537
Less: Accumulated depreciation, depletion and amortization	(19,767)	(19,534)
Total property and equipment, net	5,341	4,955
Other long-term assets	230	249
TOTAL ASSETS	7,150	7,076
Current liabilities:
Short-term debt	40	41
Accounts payable	473	473
Taxes payable	64	59
Interest payable	67	74
Dividends payable	27	27
Derivative liabilities	127	355
Other current liabilities	23	35
Total current liabilities	821	1,064
Long-term debt	4,341	4,612
Pension and other postretirement liabilities	46	49
Other long-term liabilities	369	434
Total long-term liabilities	4,756	5,095
Commitments and contingencies (Note 10)
Equity:
Common stock, $0.01 par value; 1,250,000,000 shares authorized; issued 505,893,345 shares as of June 30, 2017 (does not include 3,346,738 shares issued on July 17, 2017 on account of a dividend declared on June 21, 2017) and 495,248,369 as of December 31, 2016	5	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 June 30, 2017 and December 31, 2016, conversion in January 2018
Additional paid-in capital	4,697	4,677
Accumulated deficit	(3,090)	(3,725)
Accumulated other comprehensive loss	(38)	(39)
Common stock in treasury, 31,269 shares as of June 30, 2017 and December 31, 2016	(1)	(1)
Total equity	1,573	917
TOTAL LIABILITIES AND EQUITY	$ 7,150	$ 7,076