Unaudited Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2018		Dec. 31, 2017
Current Assets
Cash and cash equivalents (variable interest entity restricted - 2018: $27; 2017: $19)	$ 703		$ 576
Trade receivables - third party and affiliates (net of allowance for doubtful accounts - 2018: $10; 2017: $9; variable interest entity restricted - 2018: $5; 2017: $5)	1,086		986
Non-trade receivables, net	279		244
Inventories	1,033		900
Marketable securities, at fair value	31		32
Other assets	48		54
Total current assets	3,180		2,792
Investments in affiliates	981		976
Property, plant and equipment (net of accumulated depreciation - 2018: $2,739; 2017: $2,584; variable interest entity restricted - 2018: $668; 2017: $697)	3,699		3,762
Deferred income taxes	170		366
Other assets (variable interest entity restricted - 2018: $4; 2017: $6)	413		338
Goodwill	1,064	[1]	1,003
Intangible assets (variable interest entity restricted - 2018: $23; 2017: $25)	317		301
Total assets	9,824		9,538
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	229		326
Trade payables - third party and affiliates	819		807
Other liabilities	347		354
Income taxes payable	137		72
Total current liabilities	1,532		1,559
Long-term debt, net of unamortized deferred financing costs	3,196		3,315
Deferred income taxes	246		211
Uncertain tax positions	154		156
Benefit obligations	547		585
Other liabilities	206		413
Commitments and Contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 100,000,000 shares authorized (2018 and 2017: 0 issued and outstanding)	0		0
Common stock	0		0
Treasury stock, at cost (2018: 34,568,471 shares; 2017: 32,387,713 shares)	(2,281)		(2,031)
Additional paid-in capital	222		175
Retained earnings	5,819		4,920
Accumulated other comprehensive income (loss), net	(219)		(177)
Total Celanese Corporation stockholders' equity	3,541		2,887
Noncontrolling interests	402		412
Total equity	3,943		3,299
Total liabilities and equity	$ 9,824		$ 9,538

[1] There were $0 million of accumulated impairment losses as of September 30, 2018.