XML 50 R36.htm IDEA: XBRL DOCUMENT
v3.25.1

Revenues (Disaggregation of Revenue) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Apr. 04, 2025 | Mar. 29, 2024
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 4,228 | $ 3,951
United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 3,881 | 3,635
International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 347 | 316
Cost-reimbursement and fixed-price-incentive-fee |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,888 | 1,779
Firm-fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,769 | 1,640
Time-and-materials and fixed-price-level-of-effort |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 571 | 532
National Security & Digital |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,867 | 1,779
National Security & Digital | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,859 | 1,770
National Security & Digital | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 8 | 9
National Security & Digital | Cost-reimbursement and fixed-price-incentive-fee |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,013 | 946
National Security & Digital | Firm-fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 497 | 492
National Security & Digital | Time-and-materials and fixed-price-level-of-effort |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 357 | 341
Health & Civil |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,286 | 1,190
Health & Civil | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,285 | 1,189
Health & Civil | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1 | 1
Health & Civil | Cost-reimbursement and fixed-price-incentive-fee |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 471 | 447
Health & Civil | Firm-fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 759 | 690
Health & Civil | Time-and-materials and fixed-price-level-of-effort |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 56 | 53
Commercial & International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 567 | 508
Commercial & International | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 238 | 208
Commercial & International | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 329 | 300
Commercial & International | Cost-reimbursement and fixed-price-incentive-fee |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 95 | 85
Commercial & International | Firm-fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 359 | 319
Commercial & International | Time-and-materials and fixed-price-level-of-effort |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 113 | 104
Defense Systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 508 | 474
Defense Systems | United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 499 | 468
Defense Systems | International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 9 | 6
Defense Systems | Cost-reimbursement and fixed-price-incentive-fee |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 309 | 301
Defense Systems | Firm-fixed-price |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 154 | 139
Defense Systems | Time-and-materials and fixed-price-level-of-effort |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 45 | 34
DoD and U.S. Intelligence Community |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 2,059 | 1,913
DoD and U.S. Intelligence Community | National Security & Digital |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,326 | 1,221
DoD and U.S. Intelligence Community | Health & Civil |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 269 | 257
DoD and U.S. Intelligence Community | Commercial & International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 10 | 10
DoD and U.S. Intelligence Community | Defense Systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 454 | 425
Other U.S. government agencies |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,636 | 1,537
Other U.S. government agencies | National Security & Digital |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 516 | 525
Other U.S. government agencies | Health & Civil |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 999 | 917
Other U.S. government agencies | Commercial & International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 97 | 73
Other U.S. government agencies | Defense Systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 24 | 22
Commercial and non-U.S. customers |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 533 | 501
Commercial and non-U.S. customers | National Security & Digital |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 25 | 33
Commercial and non-U.S. customers | Health & Civil |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 18 | 16
Commercial and non-U.S. customers | Commercial & International |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 460 | 425
Commercial and non-U.S. customers | Defense Systems |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 30 | $ 27

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 91 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479777/606-10-55-91 + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=us-gaap_NonUsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=ldos_CostReimbursementAndFixedPriceIncentiveFeeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=us-gaap_FixedPriceContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=ldos_TimeAndMaterialsAndFixedPriceLevelOfEffortMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ldos_NationalSecurityAndDigitalSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ldos_HealthAndCivilSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ldos_CommercialAndInternationalSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ldos_DefenseSystemsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=ldos_USDoDAndUSIntelligenceCommunityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=ldos_OtherGovernmentAgenciesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=ldos_CommercialAndNonUSCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |