Unaudited Interim Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 153	$ 221	$ 277	$ 314
Other comprehensive income (loss), net of tax
Foreign currency translation gain (loss)	(7)	(201)	(61)	(188)
Gain (loss) on derivative hedges	12	0	14	4
Pension and postretirement benefits	0	1	(1)	0
Total other comprehensive income (loss), net of tax	5	(200)	(48)	(184)
Total comprehensive income (loss), net of tax	158	21	229	130
Comprehensive (income) loss attributable to noncontrolling interests	2	(1)	(1)	(3)
Comprehensive income (loss) attributable to Celanese Corporation	$ 160	$ 20	$ 228	$ 127