Segment Information - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 4,583	$ 2,637	$ 9,314	$ 6,473
Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	794	559	1,513	1,265
Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	715	378	1,502	1,047
Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	2,024	1,140	4,148	2,685
Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,050	560	2,151	1,476
North America
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,852	973	3,725	2,695
North America | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	501	389	955	865
North America | Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	223	91	463	319
North America | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	812	335	1,663	1,039
North America | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	316	158	644	472
Europe, Middle East, Africa and South America
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,749	807	3,561	2,358
Europe, Middle East, Africa and South America | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	238	135	450	332
Europe, Middle East, Africa and South America | Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	324	170	679	489
Europe, Middle East, Africa and South America | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	639	248	1,321	813
Europe, Middle East, Africa and South America | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	548	254	1,111	724
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	982	857	2,028	1,420
Asia Pacific | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	55	35	108	68
Asia Pacific | Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	168	117	360	239
Asia Pacific | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	573	557	1,164	833
Asia Pacific | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	186	148	396	280
OE - Substrate
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,081	623	2,169	1,323
OE - Substrate | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Substrate | Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Substrate | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,081	623	2,169	1,323
OE - Substrate | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Value add
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	2,690	1,445	5,595	3,860
OE - Value add | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Value add | Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	697	368	1,465	1,022
OE - Value add | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	943	517	1,979	1,362
OE - Value add | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,050	560	2,151	1,476
Aftermarket
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	812	569	1,550	1,290
Aftermarket | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	794	559	1,513	1,265
Aftermarket | Performance Solutions
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	18	10	37	25
Aftermarket | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 0	$ 0	$ 0	$ 0