Revenue - Disaggregated Revenue by Categories (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total Net Sales	$ 664	$ 603	$ 1,341	$ 1,191
North America On-Highway
Disaggregation of Revenue [Line Items]
Total Net Sales	340	302	686	621
North America Off-Highway
Disaggregation of Revenue [Line Items]
Total Net Sales	20	9	38	11
Defense
Disaggregation of Revenue [Line Items]
Total Net Sales	29	48	64	93
Outside North America On-Highway
Disaggregation of Revenue [Line Items]
Total Net Sales	105	98	214	182
Outside North America Off-Highway
Disaggregation of Revenue [Line Items]
Total Net Sales	32	18	62	34
Service Parts, Support Equipment and Other
Disaggregation of Revenue [Line Items]
Total Net Sales	$ 138	$ 128	$ 277	$ 250