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Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Oct. 03, 2025	Jan. 03, 2025
Cash and Cash Equivalents [Line Items]
Cash and equivalents	$ 539	$ 342
Cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and equivalents	393	213
Short-term investments
Cash and Cash Equivalents [Line Items]
Cash and equivalents	25	18
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities
Cash and Cash Equivalents [Line Items]
Cash and equivalents	121	111
Short-term investments | Aspire Defence Project
Cash and Cash Equivalents [Line Items]
Cash and equivalents	90	83
International
Cash and Cash Equivalents [Line Items]
Cash and equivalents	326	317
International | Wholly-Owned Captive Insurance Company
Cash and Cash Equivalents [Line Items]
Cash and equivalents	16	12
International | Cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and equivalents	189	199
International | Short-term investments
Cash and Cash Equivalents [Line Items]
Cash and equivalents	16	8
International | Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities
Cash and Cash Equivalents [Line Items]
Cash and equivalents	121	110
Domestic
Cash and Cash Equivalents [Line Items]
Cash and equivalents	213	25
Domestic | Cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and equivalents	204	14
Domestic | Short-term investments
Cash and Cash Equivalents [Line Items]
Cash and equivalents	9	10
Domestic | Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities
Cash and Cash Equivalents [Line Items]
Cash and equivalents	$ 0	$ 1

X

- Definition

Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483467/210-10-45-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-4

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- Definition

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+ References

No definition available.

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