REPORTING SEGMENTS AND RELATED INFORMATION - Geographic information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Minimum percentage in consolidated sales of countries by certain countries	5.00%
Net sales	$ 10,165	$ 10,168	$ 10,530
Long-lived assets	$ 4,591	2,934	2,904
outside U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of net sales	80.00%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 2,023	2,335	2,394
Long-lived assets	937	752	729
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	3,559	3,810	4,022
Long-lived assets	1,723	957	977
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,175	1,507	1,665
Long-lived assets	338	328	371
Poland
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	696	627	519
Long-lived assets	352	180	171
Hungary
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	458	589	687
Long-lived assets	184	164	153
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	276	171	169
Long-lived assets	229	56	53
Other Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	954	916	982
Long-lived assets	620	229	229
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,269	1,711	1,801
Long-lived assets	1,055	605	589
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,035	1,040	978
Long-lived assets	367	247	223
South Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	814	786	859
Long-lived assets	301	221	235
Other foreign
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	465	486	476
Long-lived assets	$ 208	$ 152	$ 151