Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue From Contract With Customer [Abstract]

Disaggregated Revenue by Categories

The following presents disaggregated revenue by categories that best depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors (dollars in millions):

	Three Months Ended March 31,
	2021		2020
North America On-Highway	$	319	$	352
North America Off-Highway		2		8
Defense		45		40
Outside North America On-Highway		84		72
Outside North America Off-Highway		16		27
Service Parts, Support Equipment and Other		122		138
Total Net Sales	$	588	$	637