Segment and Geographic Area Information - Segment Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting [Line Items]
Sales	$ 15,379	$ 17,450	$ 11,763
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	47	43	18
Depreciation and amortization	(639)	(673)	(345)
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	(724)	121	322
Interest expense	(277)	(322)	(148)
Income tax (expense) benefit	(459)	(19)	(63)
Net income (loss)	(1,460)	(220)	111
Clean Air
Segment Reporting [Line Items]
Sales	6,721
Powertrain
Segment Reporting [Line Items]
Sales	3,726
Ride Performance
Segment Reporting [Line Items]
Sales	2,207
Motorparts
Segment Reporting [Line Items]
Sales	2,725
Intersegment revenues
Segment Reporting [Line Items]
Sales	0	0	0
Reportable Segments
Segment Reporting [Line Items]
Sales	15,379	17,450	11,763
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	47	43	18
EBITDA including noncontrolling interests	130	1,137	922
Reportable Segments | Clean Air
Segment Reporting [Line Items]
Sales	6,721	7,121	6,707
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	0	0	0
EBITDA including noncontrolling interests	440	582	599
Reportable Segments | Powertrain
Segment Reporting [Line Items]
Sales	3,726	4,408	1,112
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	37	32	14
EBITDA including noncontrolling interests	130	363	93
Reportable Segments | Ride Performance
Segment Reporting [Line Items]
Sales	2,207	2,754	2,164
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	1	4	0
EBITDA including noncontrolling interests	(595)	8	69
Reportable Segments | Motorparts
Segment Reporting [Line Items]
Sales	2,725	3,167	1,780
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	9	7	4
EBITDA including noncontrolling interests	155	184	161
Reportable Segments | Intersegment revenues
Segment Reporting [Line Items]
Sales	298	358	114
Reportable Segments | Intersegment revenues | Clean Air
Segment Reporting [Line Items]
Sales	21	0	0
Reportable Segments | Intersegment revenues | Powertrain
Segment Reporting [Line Items]
Sales	141	160	40
Reportable Segments | Intersegment revenues | Ride Performance
Segment Reporting [Line Items]
Sales	105	158	64
Reportable Segments | Intersegment revenues | Motorparts
Segment Reporting [Line Items]
Sales	31	40	10
Reclass & Elims | Intersegment revenues
Segment Reporting [Line Items]
Sales	(298)	(358)	(114)
Corporate
Segment Reporting [Line Items]
EBITDA including noncontrolling interests	$ (215)	$ (343)	$ (255)