Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Gross carrying amount at beginning of period		$ 1,231	$ 1,244	$ 1,231
Measurement period adjustments				(8)
Acquisitions				28
Reclassification from assets held for sale			2	(4)
Foreign exchange			8	(3)
Gross carrying amount at end of period			1,254	1,244	$ 1,231
Accumulated impairment loss at beginning of period		(362)	(469)	(362)
Impairment			(267)	(108)
Foreign exchange			(10)	1
Accumulated impairment loss at end of period			(746)	(469)	(362)
Net carrying value at end of period			775
Clean Air
Goodwill [Roll Forward]
Gross carrying amount at beginning of period		22	22	22
Measurement period adjustments				0
Acquisitions				0
Reclassification from assets held for sale			0	0
Foreign exchange			1	0
Gross carrying amount at end of period			23	22	22
Accumulated impairment loss at beginning of period		0	0	0
Impairment			0	0
Foreign exchange			0	0
Accumulated impairment loss at end of period			0	0	0
Net carrying value at end of period			22
Powertrain
Goodwill [Roll Forward]
Gross carrying amount at beginning of period		388	343	388
Measurement period adjustments				(45)
Acquisitions				0
Reclassification from assets held for sale			0	0
Foreign exchange			0	0
Gross carrying amount at end of period			343	343	388
Accumulated impairment loss at beginning of period		0	(18)	0
Impairment			(160)	(18)
Foreign exchange			0	0
Accumulated impairment loss at end of period			(178)	(18)	0
Net carrying value at end of period			325
Ride Performance
Goodwill [Roll Forward]
Gross carrying amount at beginning of period		210	259	210
Measurement period adjustments				24
Acquisitions				28
Reclassification from assets held for sale			0	0
Foreign exchange			6	(3)
Gross carrying amount at end of period			265	259	210
Accumulated impairment loss at beginning of period		(143)	(212)	(143)
Impairment	$ (9)	(60)	(37)	(69)	(3)
Foreign exchange			(9)	0
Accumulated impairment loss at end of period			(258)	(212)	(143)
Net carrying value at end of period			47
Motorparts
Goodwill [Roll Forward]
Gross carrying amount at beginning of period		611	620	611
Measurement period adjustments				13
Acquisitions				0
Reclassification from assets held for sale			2	(4)
Foreign exchange			1	0
Gross carrying amount at end of period			623	620	611
Accumulated impairment loss at beginning of period		$ (219)	(239)	(219)
Impairment			(70)	(21)
Foreign exchange			(1)	1
Accumulated impairment loss at end of period			(310)	$ (239)	$ (219)
Net carrying value at end of period			$ 381