Goodwill And Intangible Assets (Schedule Of Goodwill Balances For Continuing Operations By Reportable Segment And For Other Operations And Headquarters) (Details) - USD ($)				12 Months Ended
	Oct. 01, 2021	Oct. 01, 2020	Oct. 01, 2019	Dec. 31, 2021	Dec. 31, 2020
Goodwill balances by segment for continuing operations
Balance at the beginning of the period				$ 2,146,000,000	$ 2,096,000,000
Acquisitions				79,000,000	9,000,000
Purchase accounting adjustments					29,000,000
Impairments	$ 0	$ 0	$ 0	(3,000,000)
Impact of foreign exchange rates				(11,000,000)	12,000,000
Balance at the end of the period				$ 2,211,000,000	$ 2,146,000,000