Consolidated Balance Sheet - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 3,908,000,000	$ 5,088,000,000
Short-term investments	3,866,000,000	3,028,000,000
Accounts and notes receivable (net of allowance of $3 and $13, respectively)	2,116,000,000	3,267,000,000
Accounts and notes receivable-related parties	148,000,000	134,000,000
Investment in Cenovus Energy	420,000,000	2,111,000,000
Inventories	726,000,000	1,026,000,000
Prepaid expenses and other current assets	1,960,000,000	2,259,000,000
Total Current Assets	13,144,000,000	16,913,000,000
Investments and long-term receivables	8,707,000,000	8,687,000,000
Loans and advances-related parties	167,000,000	219,000,000
Net properties, plants and equipment (net of accumulated depreciation, depletion and amortization of $55,425 and $55,477, respectively)	40,645,000,000	42,269,000,000
Other assets	2,370,000,000	2,426,000,000
Total Assets	65,033,000,000	70,514,000,000
Liabilities
Accounts payable	2,900,000,000	3,176,000,000
Accounts payable-related parties	21,000,000	24,000,000
Short-term debt	126,000,000	105,000,000
Accrued income and other taxes	853,000,000	1,030,000,000
Employee benefit obligations	323,000,000	663,000,000
Other accruals	1,852,000,000	2,045,000,000
Total Current Liabilities	6,075,000,000	7,043,000,000
Long-term debt	14,847,000,000	14,790,000,000
Asset retirement obligations and accrued environmental costs	5,316,000,000	5,352,000,000
Deferred income taxes	4,141,000,000	4,634,000,000
Employee benefit obligations	1,563,000,000	1,781,000,000
Other liabilities and deferred credits	1,704,000,000	1,864,000,000
Total Liabilities	33,646,000,000	35,464,000,000
Equity
Common stock (2,500,000,000 shares authorized at $.01 par value) Issued (2020-1,798,422,031 shares; 2019-1,795,652,203 shares)	18,000,000	18,000,000
Capital in excess of par	47,027,000,000	46,983,000,000
Treasury stock (at cost: 2020-725,996,869 shares; 2019-710,783,814 shares)	(47,130,000,000)	(46,405,000,000)
Accumulated other comprehensive loss	(6,145,000,000)	(5,357,000,000)
Retained earnings	37,545,000,000	39,742,000,000
Total Common Stockholders' Equity	31,315,000,000	34,981,000,000
Noncontrolling interests	72,000,000	69,000,000
Total Equity	31,387,000,000	35,050,000,000
Total Liabilities and Equity	$ 65,033,000,000	$ 70,514,000,000