Employee Stock Benefit Plans (Schedule Of Restricted Stock Units Activity) (Details) - $ / shares shares in Millions	12 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021
Restricted stock units
Number of Units
Number of units, outstanding at the beginning of year (in shares)	4.0
Number of units, granted (in shares)	3.9
Number of units, shares vested, net (in shares)	(1.7)
Number of units, cancelled and forfeited (in shares)	(0.7)
Number of units, outstanding at the end of year (in shares)	5.5	4.0
Weighted Average Grant-Date Fair Value per Share
Weighted average grant-date fair value, outstanding at the beginning of year (in usd per share)	$ 67.32
Weighted average grant-date fair value, granted (in usd per share)	49.93	$ 73.32	$ 78.44
Weighted average grant-date fair value, shares vested, net (in usd per share)	61.44
Weighted average grant-date fair value, canceled and forfeited (in usd per share)	56.39
Weighted average grant-date fair value, outstanding at the end of year (in usd per share)	$ 58.23	$ 67.32
Performance-Based Restricted Stock Units
Number of Units
Number of units, granted (in shares)	0.9
Number of units, shares vested, net (in shares)	(0.1)
Number of units, cancelled and forfeited (in shares)	(0.2)
Number of units, outstanding at the end of year (in shares)	1.2
Performance-Based Stock Units, Achievement Of Company Performance Metrics
Number of Units
Number of units, cancelled and forfeited (in shares)	(0.1)
Weighted Average Grant-Date Fair Value per Share
Performance adjustments above target levels at vesting date (in shares)	0.1