Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 1,902	$ 1,896	$ 1,992
Other comprehensive income (loss), net of tax
Foreign currency translation gain (loss)	(217)	(11)	(8)
Gain (loss) on cash flow hedges	21	13	(18)
Pension and postretirement benefits	7	(3)	(2)
Total other comprehensive income (loss), net of tax	(189)	(1)	(28)
Total comprehensive income (loss), net of tax	1,713	1,895	1,964
Comprehensive (income) loss attributable to noncontrolling interests	(8)	(6)	(7)
Comprehensive income (loss) attributable to Celanese Corporation	$ 1,705	$ 1,889	$ 1,957