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OPERATING SEGMENTS (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 29, 2020 | Mar. 31, 2019
Segment reporting |  |  |
NET SALES (a) (Note 3) | [1] | $ 5,011 | $ 6,004
Research, development and engineering expenses |  | 238 | 237
Equity, royalty and interest income from investees |  | 129 | 92
Interest income | [2] | 7 | 12
Segment EBITDA |  | 846 | 1,033
Depreciation and amortization | [3] | 168 | 156
Less: Interest expense |  | 23 | 32
INCOME BEFORE INCOME TAXES |  | 655 | 845
Amortization of Debt Discount (Premium) |  |  | 1
Maximum |  |  |
Segment reporting |  |  |
Amortization of Debt Discount (Premium) |  | 1 |
Engine |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 2,158 | 2,653
Research, development and engineering expenses |  | 80 | 78
Equity, royalty and interest income from investees |  | 78 | 56
Interest income | [2] | 4 | 4
Segment EBITDA |  | 365 | 438
Depreciation and amortization | [3] | 53 | 50
Distribution |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 1,814 | 2,001
Research, development and engineering expenses |  | 7 | 7
Equity, royalty and interest income from investees |  | 21 | 11
Interest income | [2] | 1 | 4
Segment EBITDA |  | 158 | 171
Depreciation and amortization | [3] | 31 | 29
Components |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 1,502 | 1,861
Research, development and engineering expenses |  | 68 | 75
Equity, royalty and interest income from investees |  | 21 | 10
Interest income | [2] | 1 | 2
Segment EBITDA |  | 279 | 325
Depreciation and amortization | [3] | 48 | 46
Power Systems |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 884 | 1,077
Research, development and engineering expenses |  | 54 | 56
Equity, royalty and interest income from investees |  | 9 | 15
Interest income | [2] | 1 | 2
Segment EBITDA |  | 77 | 138
Depreciation and amortization | [3] | 32 | 29
New Power |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 10 | 3
Research, development and engineering expenses |  | 29 | 21
Equity, royalty and interest income from investees |  | 0 | 0
Interest income | [2] | 0 | 0
Segment EBITDA |  | (43) | (29)
Depreciation and amortization | [3] | 4 | 2
Total Segments |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 6,368 | 7,595
Research, development and engineering expenses |  | 238 | 237
Equity, royalty and interest income from investees |  | 129 | 92
Interest income | [2] | 7 | 12
Segment EBITDA |  | 836 | 1,043
Depreciation and amortization | [3] | 168 | 156
Intersegment Eliminations |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) | [4] | (1,357) | (1,591)
Non-segment items |  |  |
Segment reporting |  |  |
Segment EBITDA | [4] | 10 | (10)
External Sales |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 5,011 | 6,004
External Sales | Engine |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 1,579 | 1,984
External Sales | Distribution |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 1,807 | 1,993
External Sales | Components |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 1,115 | 1,401
External Sales | Power Systems |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 500 | 623
External Sales | New Power |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 10 | 3
External Sales | Total Segments |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 5,011 | 6,004
Intersegment sales | Engine |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 579 | 669
Intersegment sales | Distribution |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 7 | 8
Intersegment sales | Components |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 387 | 460
Intersegment sales | Power Systems |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 384 | 454
Intersegment sales | New Power |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 0 | 0
Intersegment sales | Total Segments |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) |  | 1,357 | 1,591
Intersegment sales | Intersegment Eliminations |  |  |
Segment reporting |  |  |
NET SALES (a) (Note 3) | [4] | $ (1,357) | $ (1,591)
[1] | (a) Includes sales to nonconsolidated equity investees of $257 million and $285 million for the three months ended March 29, 2020 and March 31, 2019, respectively.
[2] | (2) "Interest income" is managed at the corporate level and allocated to each operating segment.
[3] | (3) Depreciation and amortization, as shown on a segment basis, excludes the amortization of debt discount and deferred costs included in the Condensed Consolidated Statements of Net Income as "Interest expense." The amortization of debt discount and deferred costs was less than $1 million and $1 million for the three months ended March 29, 2020 and March 31, 2019, respectively. A portion of depreciation expense is included in "Research, development and engineering expenses."
[4] | (1) Includes intersegment sales, intersegment profit in inventory eliminations and unallocated corporate expenses. There were no significant unallocated corporate expenses for the three months ended March 29, 2020 and March 31, 2019.

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