Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Otomotiv A.S.
Related Party Transaction [Line Items]
Net Sales	$ 11,000	$ 5,000	$ 21,000	$ 17,000
Purchases	67,000	17,000	143,000	76,000
Royalty and Other	0	2,000	3,000	6,000
Receivables	6,000		6,000		$ 10,000
Payables and Accruals	33,000		33,000		49,000
Anqing TP Goetze
Related Party Transaction [Line Items]
Net Sales	1,000	3,000	3,000	9,000
Purchases	28,000	18,000	55,000	31,000
Royalty and Other	2,000	1,000	3,000	1,000
Receivables	4,000		4,000		4,000
Payables and Accruals	35,000		35,000		30,000
Other nonconsolidated affiliates
Related Party Transaction [Line Items]
Net Sales	8,000	4,000	16,000	11,000
Purchases	13,000	5,000	25,000	18,000
Royalty and Other	1,000	0	1,000	0
Receivables	3,000		3,000		3,000
Payables and Accruals	6,000		6,000		7,000
Icahn Automotive Group LLC
Related Party Transaction [Line Items]
Net Sales	40,000	32,000	71,000	65,000
Purchases	0	0	0	0
Royalty and Other	0	1,000	1,000	2,000
Receivables	47,000		47,000		47,000
Payables and Accruals	4,000		4,000		$ 9,000
PSC Metals, Inc.
Related Party Transaction [Line Items]
Net Sales	0	1,000	0	1,000
Purchases	0	0	0	0
Royalty and Other	$ 0	$ 0	$ 1,000	$ 0