REVENUE RECOGNITION DISAGGREGATION OF REVENUES REVENUE RECOGNITION DISAGGREGATION OF REVENUES (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net sales	[1]	$ 24,021	$ 19,811	$ 23,571
Heavy-duty truck (EBU market)
Disaggregation of Revenue [Line Items]
Net sales		2,511	1,800	2,626
Medium-duty truck and bus (EBU market)
Disaggregation of Revenue [Line Items]
Net sales		1,978	1,629	2,244
Light-duty automotive (EBU market)
Disaggregation of Revenue [Line Items]
Net sales		1,845	1,441	1,656
On-highway (EBU market)
Disaggregation of Revenue [Line Items]
Net sales		6,334	4,870	6,526
Off-highway (EBU market)
Disaggregation of Revenue [Line Items]
Net sales		1,255	1,055	1,044
Parts (DBU product line)
Disaggregation of Revenue [Line Items]
Net sales		3,136	2,921	3,278
Power Generation (DBU product line)
Disaggregation of Revenue [Line Items]
Net sales		1,754	1,686	1,777
Engine (DBU product line)
Disaggregation of Revenue [Line Items]
Net sales		1,493	1,245	1,511
Service (DBU product line)
Disaggregation of Revenue [Line Items]
Net sales		1,359	1,258	1,474
Emission solutions (CBU business)
Disaggregation of Revenue [Line Items]
Net sales		3,142	2,352	2,763
Filtration (CBU business)
Disaggregation of Revenue [Line Items]
Net sales		1,171	1,005	1,024
Turbo technologies (CBU business)
Disaggregation of Revenue [Line Items]
Net sales		787	673	696
Automated Transmission
Disaggregation of Revenue [Line Items]
Net sales		481	303	534
Electronics and Fuel systems (CBU product line)
Disaggregation of Revenue [Line Items]
Net sales		351	317	236
Power Generation (PSBU product line)
Disaggregation of Revenue [Line Items]
Net sales		1,481	1,155	1,414
Industrial (PSBU product line)
Disaggregation of Revenue [Line Items]
Net sales		820	638	908
Generator technologies (PSBU product lines)
Disaggregation of Revenue [Line Items]
Net sales		349	262	348
Engine
Disaggregation of Revenue [Line Items]
Net sales		9,954	8,022	10,056
Distribution
Disaggregation of Revenue [Line Items]
Net sales		7,772	7,136	8,071
Components
Disaggregation of Revenue [Line Items]
Net sales		7,665	6,024	6,914
Power Systems
Disaggregation of Revenue [Line Items]
Net sales		4,415	3,631	4,460
External Sales | Engine
Disaggregation of Revenue [Line Items]
Net sales		7,589	5,925	7,570
External Sales | Distribution
Disaggregation of Revenue [Line Items]
Net sales		7,742	7,110	8,040
External Sales | Components
Disaggregation of Revenue [Line Items]
Net sales		5,932	4,650	5,253
External Sales | Power Systems
Disaggregation of Revenue [Line Items]
Net sales		2,650	2,055	2,670
UNITED STATES
Disaggregation of Revenue [Line Items]
Net sales		12,489	10,605	13,519
CHINA
Disaggregation of Revenue [Line Items]
Net sales		3,169	2,832	2,331
CHINA | Distribution
Disaggregation of Revenue [Line Items]
Net sales		323	340	356
INDIA
Disaggregation of Revenue [Line Items]
Net sales		1,133	680	848
INDIA | Distribution
Disaggregation of Revenue [Line Items]
Net sales		194	150	200
OTHER INTERNATIONAL
Disaggregation of Revenue [Line Items]
Net sales		7,230	5,694	6,873
NORTH AMERICA | Distribution
Disaggregation of Revenue [Line Items]
Net sales		4,902	4,688	5,513
ASIA PACIFIC | Distribution
Disaggregation of Revenue [Line Items]
Net sales		901	799	875
EUROPE | Distribution
Disaggregation of Revenue [Line Items]
Net sales		647	597	528
RUSSIA | Distribution
Disaggregation of Revenue [Line Items]
Net sales		334	191	157
AFRICA and MIDDLE EAST | Distribution
Disaggregation of Revenue [Line Items]
Net sales		259	198	235
LATIN AMERICA | Distribution
Disaggregation of Revenue [Line Items]
Net sales		$ 182	$ 147	$ 176

[1] (a)Includes sales to nonconsolidated equity investees of $1,713 million, $1,283 million and $1,191 million for the years ended December 31, 2021, 2020 and 2019, respectively.