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.

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+ Details

- 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.

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+ Details

Revenue (Schedule of Revenue by Contract Type) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2026	Jul. 04, 2025	Jul. 03, 2026	Jul. 04, 2025
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,984	$ 1,952	$ 3,907	$ 3,970
Cost-Reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	761	853	1,539	1,744
Time-and-Materials
Disaggregation of Revenue [Line Items]
Total revenue	577	615	1,140	1,206
Fixed Price
Disaggregation of Revenue [Line Items]
Total revenue	646	484	1,228	1,020
MTS
Disaggregation of Revenue [Line Items]
Total revenue	1,308	1,336	2,604	2,717
MTS \| Cost-Reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	746	853	1,517	1,744
MTS \| Time-and-Materials
Disaggregation of Revenue [Line Items]
Total revenue	203	194	403	401
MTS \| Fixed Price
Disaggregation of Revenue [Line Items]
Total revenue	359	289	684	572
STS
Disaggregation of Revenue [Line Items]
Total revenue	676	616	1,303	1,253
STS \| Cost-Reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	15	0	22	0
STS \| Time-and-Materials
Disaggregation of Revenue [Line Items]
Total revenue	374	421	737	805
STS \| Fixed Price
Disaggregation of Revenue [Line Items]
Total revenue	$ 287	$ 195	$ 544	$ 448