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Revenue (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2026	Jan. 03, 2025	Dec. 29, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue recognized from performance obligations	$ 48	$ 30	$ 15
Revenue, remaining performance obligation	13,300
Operating income (loss)	778	659	$ 449
Contract assets	280	271
Contract liabilities	331	$ 328
Contract liability, revenue recognized	$ 233
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-03
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, remaining performance obligation, expected to be satisfied (as a percentage)	36.00%
Revenue, remaining performance obligation, expected timing of satisfaction (year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-02
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, remaining performance obligation, expected to be satisfied (as a percentage)	41.00%
Revenue, remaining performance obligation, expected timing of satisfaction (year)	4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-12-28
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue, remaining performance obligation, expected to be satisfied (as a percentage)	23.00%
Revenue, remaining performance obligation, expected timing of satisfaction (year)
LNG Project
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating income (loss)	$ 134

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