STATEMENT OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTERESTS	$ 41	$ (117)	$ (4,959)	$ (435)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Share of equity method interests other comprehensive income (loss)	1	(1)	0	(1)
COMPREHENSIVE INCOME (LOSS) INCLUDING NONCONTROLLING INTERESTS	42	(118)	(4,959)	(436)
COMPREHENSIVE LOSS ATTRIBUTABLE TO COMMON STOCK	(3)	(171)	(4,870)	(578)
Altus Preferred Unit limited partners
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Comprehensive income attributable to noncontrolling interest	19	18	56	22
Noncontrolling interests, Egypt
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Comprehensive income attributable to noncontrolling interest	24	38	(138)	125
Noncontrolling interests, Altus
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Comprehensive income attributable to noncontrolling interest	$ 2	$ (3)	$ (7)	$ (5)