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Revenue (Revenue by Geographic Destination) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2025	Sep. 27, 2024	Oct. 03, 2025	Sep. 27, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 1,931	$ 1,937	$ 5,901	$ 5,602
MTS
Disaggregation of Revenue [Line Items]
Revenues	1,406	1,406	4,286	4,047
STS
Disaggregation of Revenue [Line Items]
Revenues	525	531	1,615	1,555
United States
Disaggregation of Revenue [Line Items]
Revenues	1,040	1,032	3,259	2,927
United States | MTS
Disaggregation of Revenue [Line Items]
Revenues	938	896	2,902	2,535
United States | STS
Disaggregation of Revenue [Line Items]
Revenues	102	136	357	392
Europe
Disaggregation of Revenue [Line Items]
Revenues	397	468	1,210	1,394
Europe | MTS
Disaggregation of Revenue [Line Items]
Revenues	343	400	1,013	1,183
Europe | STS
Disaggregation of Revenue [Line Items]
Revenues	54	68	197	211
Middle East
Disaggregation of Revenue [Line Items]
Revenues	200	178	583	531
Middle East | MTS
Disaggregation of Revenue [Line Items]
Revenues	28	25	93	78
Middle East | STS
Disaggregation of Revenue [Line Items]
Revenues	172	153	490	453
Australia
Disaggregation of Revenue [Line Items]
Revenues	149	134	418	391
Australia | MTS
Disaggregation of Revenue [Line Items]
Revenues	62	53	168	150
Australia | STS
Disaggregation of Revenue [Line Items]
Revenues	87	81	250	241
Africa
Disaggregation of Revenue [Line Items]
Revenues	64	47	184	146
Africa | MTS
Disaggregation of Revenue [Line Items]
Revenues	20	17	56	50
Africa | STS
Disaggregation of Revenue [Line Items]
Revenues	44	30	128	96
Asia
Disaggregation of Revenue [Line Items]
Revenues	30	37	111	93
Asia | MTS
Disaggregation of Revenue [Line Items]
Revenues	2	1	15	7
Asia | STS
Disaggregation of Revenue [Line Items]
Revenues	28	36	96	86
Other countries
Disaggregation of Revenue [Line Items]
Revenues	51	41	136	120
Other countries | MTS
Disaggregation of Revenue [Line Items]
Revenues	13	14	39	44
Other countries | STS
Disaggregation of Revenue [Line Items]
Revenues	$ 38	$ 27	$ 97	$ 76

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