Debt (Tables)

3 Months Ended

Mar. 31, 2026

Debt Disclosure [Abstract]

Schedule of Short-term Debt

	As of March 31, 2026	As of December 31, 2025
	(In $ millions)
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Current installments of long-term debt	1,685	1,114
Short-term borrowings, including amounts due to affiliates(1)	56	47
Revolving credit facilities(2)	—	43
Total	1,741	1,204

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(1)The weighted average interest rate was 2.2% and 2.2% as of March 31, 2026 and December 31, 2025, respectively.

(2)The weighted average interest rate was 0.0% and 3.1% as of March 31, 2026 and December 31, 2025, respectively.

Schedule of Long-term Debt

	As of March 31, 2026	As of December 31, 2025
	(In $ millions)
Long-Term Debt
Senior unsecured notes due 2026, interest rate of 1.400%	400	400
Senior unsecured notes due 2026, interest rate of 5.277%(1)	515	526
Senior unsecured notes due 2027, interest rate of 2.125%	574	587
Senior unsecured notes due 2027, interest rate of 7.165%(1)	554	554
Senior unsecured notes due 2028, interest rate of 0.625%	575	587
Senior unsecured notes due 2028, interest rate of 6.850%(1)	746	746
Senior unsecured notes due 2029, interest rate of 6.337%(1)	576	588
Senior unsecured notes due 2029, interest rate of 7.330%(1)	750	750
Senior unsecured notes due 2030, interest rate of 6.500%	700	700
Senior unsecured notes due 2030, interest rate of 7.050%(1)	999	999
Senior unsecured notes due 2031, interest rate of 7.000%	600	600
Senior unsecured notes due 2031, interest rate of 5.000%	862	881
Senior unsecured notes due 2032, interest rate of 7.379%(1)	1,000	1,000
Senior unsecured notes due 2033, interest rate of 7.200%(1)	1,000	1,000
Senior unsecured notes due 2033, interest rate of 6.750%	1,100	1,100
Senior unsecured notes due 2034, interest rate of 7.375%	800	800
Pollution control and industrial revenue bonds due at various dates through 2030(2)	85	85
Bank loans due at various dates through 2031(3)	638	582
Obligations under finance leases due at various dates through 2054	125	129
Subtotal	12,599	12,614
Unamortized deferred financing costs(4)	(101)	(106)
Current installments of long-term debt	(1,685)	(1,114)
Total	10,813	11,394

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(1)In February 2025, Moody's Ratings downgraded the Company's credit rating, which had the effect of increasing interest rates by 25 basis points on certain senior unsecured notes, effective on various dates beginning May 15, 2025 through January 19, 2026.

In November 2025, S&P Global Ratings and Moody's Ratings downgraded the Company's credit rating, which together had the effect of increasing interest rates for certain senior unsecured notes by an additional 50 basis points, effective on various dates beginning January 15, 2026 through May 15, 2026.

(2)Interest rates range from 4.1% to 4.3%.

(3)The weighted average interest rate was 2.4% and 2.4% as of March 31, 2026 and December 31, 2025, respectively.

(4)Related to the Company's long-term debt, excluding obligations under finance leases.

Schedule of Line of Credit Facilities

Certain of the Company's subsidiaries in China have outstanding senior unsecured bank obligations (collectively, the "China Credit Facilities") as follows:

Subsidiary	Maturity	Borrowing Capacity		Interest Rate	As of March 31, 2026
		(In CNY millions)		(In percentages)	(In CNY millions)	(In $ millions)
Celanese (Shanghai) International Trading Co., Ltd ("CSIT")	January 13, 2026	550	(1)	2.700	—	—
Celanese (Nanjing) Chemical Co., Ltd. ("CNCC")	December 25, 2026	800	(2)	2.340	800	116
CNCC	June 17, 2027	200	(2)	2.340	170	25
CNCC	June 28, 2027	800	(2)	2.340	680	99
CNCC	December 21, 2027	500	(3)	2.440	450	65
CNCC	March 6, 2028	750	(2)	2.340	675	98
CNCC	June 9, 2028	1,000	(2)	2.350	872	126
CNCC	July 3, 2028	300	(2)	2.340	285	41
CNCC	October 20, 2028	300	(2)	2.340	300	43
CNCC	March 11, 2031	600	(4)	2.410	100	15
Total					4,332	628

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(1)Revolving credit facility guaranteed by Celanese U.S. (the "CSIT Revolving Credit Facility"), which bears interest at a fixed rate. The CSIT Revolving Credit Facility was fully repaid on January 13, 2026.

(2)Senior unsecured working capital loan bearing interest at certain floating interest rates.

(3)Senior unsecured working capital loan bearing interest at a fixed interest rate.

(4)On March 10, 2026, CNCC entered into a CNY600 million senior unsecured term loan credit agreement bearing interest at certain floating interest rates, expiring seven years from the drawdown date.

The Company's debt balances and amounts available for borrowing under its senior unsecured revolving credit facilities are as follows:

	As of March 31, 2026
	(In $ millions)
U.S. Revolving Credit Facility
Borrowings outstanding	—
Available for borrowing	1,750
China Revolving Credit Facilities
Borrowings outstanding	—
Available for borrowing	94