Unaudited Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 615	$ 463
Accounts Receivable, Allowance for Credit Loss, Current	10	9
Trade receivables - third party and affiliates (net of allowance for doubtful accounts - 2020: $10; 2019: $9; variable interest entity restricted - 2020: $6; 2019: $6)	716	850
Non-trade receivables, net (variable interest entity restricted - 2020: $7; 2019: $0)	347	331
Inventories	1,001	1,038
Marketable securities	35	40
Other assets	57	43
Total current assets	2,771	2,765
Investments in affiliates	993	975
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	3,201	2,957
Property, plant and equipment (net of accumulated depreciation - 2020: $3,201; 2019: $2,957; variable interest entity restricted - 2020: $602; 2019: $622)	3,851	3,713
Operating Lease, Right-of-Use Asset	210	203
Deferred income taxes	87	96
Other assets (variable interest entity restricted - 2020: $14; 2019: $9)	412	338
Goodwill	1,128	1,074
Intangible assets (variable interest entity restricted - 2020: $21; 2019: $22)	317	312
Total assets	9,769	9,476
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	958	496
Trade payables - third party and affiliates	699	780
Other liabilities	632	461
Income taxes payable	120	17
Total current liabilities	2,409	1,754
Long-term debt, net of unamortized deferred financing costs	3,140	3,409
Deferred income taxes	164	257
Uncertain tax positions	200	165
Benefit obligations	584	589
Operating Lease, Liability, Noncurrent	191	181
Other liabilities	197	223
Commitments and Contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 100,000,000 shares authorized (2020 and 2019: 0 issued and outstanding)	0	0
Common stock, $0.0001 par value, 400,000,000 shares authorized (2020: 169,373,705 issued and 117,229,789 outstanding; 2019: 168,973,172 issued and 119,555,207 outstanding)	0	0
Treasury stock, at cost (2020: 52,143,916 shares; 2019: 49,417,965 shares)	(4,106)	(3,846)
Additional paid-in capital	248	254
Retained earnings	6,710	6,399
Accumulated other comprehensive income (loss), net	(344)	(300)
Total Celanese Corporation stockholders' equity	2,508	2,507
Noncontrolling interests	376	391
Total equity	2,884	2,898
Total liabilities and equity	$ 9,769	$ 9,476
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	100,000,000	100,000,000
Treasury stock, shares	52,143,916	49,417,965
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	169,373,705	168,973,172
Common stock, shares outstanding	117,229,789	119,555,207