Unaudited Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents (variable interest entity restricted - 2019: $46; 2018: $24)	$ 497	$ 439
Trade receivables - third party and affiliates (net of allowance for doubtful accounts - 2019: $9; 2018: $10; variable interest entity restricted - 2019: $7; 2018: $6)	947	1,017
Non-trade receivables, net	335	301
Inventories	994	1,046
Marketable securities, at fair value	26	31
Other assets	44	40
Total current assets	2,843	2,874
Investments in affiliates	970	979
Property, plant and equipment (net of accumulated depreciation - 2019: $2,848; 2018: $2,803; variable interest entity restricted - 2019: $631; 2018: $659)	3,585	3,719
Operating Lease, Right-of-Use Asset	206	0
Deferred income taxes	98	84
Other assets (variable interest entity restricted - 2019: $2; 2018: $5)	344	290
Goodwill	1,054	1,057
Intangible assets (variable interest entity restricted - 2019: $22; 2018: $23)	314	310
Total assets	9,414	9,313
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	368	561
Trade payables - third party and affiliates	764	819
Other liabilities	358	343
Income taxes payable	43	56
Total current liabilities	1,533	1,779
Long-term debt, net of unamortized deferred financing costs	3,359	2,970
Deferred income taxes	269	255
Uncertain tax positions	169	158
Benefit obligations	523	564
Operating Lease, Liability, Noncurrent	182	0
Other liabilities	240	208
Commitments and Contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 100,000,000 shares authorized (2019 and 2018: 0 issued and outstanding)	0	0
Common stock	0	0
Treasury stock, at cost (2019: 47,614,760 shares; 2018: 40,323,105 shares)	(3,622)	(2,849)
Additional paid-in capital	244	233
Retained earnings	6,431	5,847
Accumulated other comprehensive income (loss), net	(306)	(247)
Total Celanese Corporation stockholders' equity	2,747	2,984
Noncontrolling interests	392	395
Total equity	3,139	3,379
Total liabilities and equity	$ 9,414	$ 9,313