Segment Financial Data - Schedule of Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025
Segment Reporting [Line Items]
Total segment profit	$ 995	$ 1,066	$ 2,090	$ 2,106
Amortization of acquisition-related intangibles	(45)	(40)	(88)	(78)
Stock compensation expense	(36)	(22)	(61)	(46)
Transaction costs	(74)	(15)	(109)	(15)
Environmental expenses	(18)	(22)	(37)	(93)
Interest and other financial charges	(200)	0	(229)	0
Other expense, net	(98)	(14)	(148)	(72)
Income before taxes	378	1,000	1,178	1,933
Operating Segments | Electronic Solutions
Segment Reporting [Line Items]
Total segment profit	459	475	969	885
Operating Segments | Engines & Power Systems
Segment Reporting [Line Items]
Total segment profit	174	256	455	449
Operating Segments | Control Systems
Segment Reporting [Line Items]
Total segment profit	389	361	716	808
Corporate and All Other
Segment Reporting [Line Items]
Total segment profit	(27)	(26)	(50)	(36)
Corporate Nonsegment
Segment Reporting [Line Items]
Amortization of acquisition-related intangibles	(22)	(17)	(44)	(34)
Stock compensation expense	(36)	(22)	(61)	(46)
Transaction costs	(329)	(17)	(522)	(17)
Environmental expenses	(20)	(24)	(42)	(105)
Interest and other financial charges	(200)	0	(229)	0
Other expense, net	$ (10)	$ 14	$ (14)	$ 29