Supplemental Information To Statements Of Cash Flows (Tables)

3 Months Ended

Mar. 31, 2021

Supplemental Cash Flow Elements [Abstract]

Schedule Of Supplemental Information To Statements Of Cash Flows

	Three Months Ended March 31,
	2021			2020
Changes in assets and liabilities, net:
Accounts receivable	$	(63	)	$	238
Income tax receivable		15			(113	)
Other current assets		(25	)		(38	)
Other long-term assets		(10	)		(24	)
Accounts payable		71			42
Revenues and royalties payable		(55	)		(113	)
Other current liabilities		(33	)		(81	)
Other long-term liabilities		(27	)		33
Total	$	(127	)	$	(56	)
Supplementary cash flow data - total operations:
Interest paid	$	114		$	64
Income taxes paid (refunded)	$	(6	)	$	151