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BUSINESS SEGMENT INFORMATION - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Apr. 01, 2022
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | $ 4,471 | $ 4,103
IMS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,700 | 1,659
IMS | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,257 | 1,182
IMS | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 422 | 461
IMS | Fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,286 | 1,261
IMS | Cost-reimbursable |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 393 | 382
IMS | Intersegment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 21 | 16
SAS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,655 | 1,517
SAS | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,454 | 1,342
SAS | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 188 | 165
SAS | Fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,022 | 880
SAS | Cost-reimbursable |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 620 | 627
SAS | Intersegment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 13 | 10
CS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,163 | 963
CS | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 791 | 625
CS | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 359 | 327
CS | Fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 978 | 797
CS | Cost-reimbursable |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 172 | 155
CS | Intersegment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 13 | 11
Prime contractor | IMS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,154 | 1,086
Prime contractor | SAS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 1,010 | 977
Prime contractor | CS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 807 | 656
Subcontractor | IMS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 525 | 557
Subcontractor | SAS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | 632 | 530
Subcontractor | CS |  |
Disaggregation of Revenue [Line Items] |  |
Revenue from product sales and services | $ 343 | $ 296

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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