Unaudited Interim Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net earnings (loss)	$ 540	$ 109	$ 863	$ 329
Other comprehensive income (loss), net of tax
Foreign currency translation gain (loss)	7	(6)	3	(8)
Gain (loss) on cash flow hedges	(3)	1	31	(38)
Pension and postretirement benefits	0	0	(4)	0
Total other comprehensive income (loss), net of tax	4	(5)	30	(46)
Total comprehensive income (loss), net of tax	544	104	893	283
Comprehensive (income) loss attributable to noncontrolling interests	(2)	(2)	(3)	(4)
Comprehensive income (loss) attributable to Celanese Corporation	$ 542	$ 102	$ 890	$ 279