Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	Sep. 27, 2024	Dec. 29, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying value	$ 2,006	$ 2,004
Finite-lived intangible assets, accumulated amortization	(1,452)	(1,341)
Finite-lived intangible assets, net carrying value	554	663
Total intangible assets, gross carrying value	2,010	2,008
Total intangible assets, net carrying value	558	667
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	4	4
Programs
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying value	1,689	1,689
Finite-lived intangible assets, accumulated amortization	(1,264)	(1,175)
Finite-lived intangible assets, net carrying value	425	514
Software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying value	264	263
Finite-lived intangible assets, accumulated amortization	(161)	(144)
Finite-lived intangible assets, net carrying value	103	119
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying value	53	52
Finite-lived intangible assets, accumulated amortization	(27)	(22)
Finite-lived intangible assets, net carrying value	$ 26	$ 30