Employee Stock Benefit Plans (Schedule Of Restricted Stock Units Activity) (Details) - $ / shares shares in Millions	12 Months Ended
	Jan. 01, 2021	Jan. 03, 2020	Dec. 28, 2018
Restricted stock units
Number of Units
Number of units, outstanding at the beginning of year (in shares)	5.7
Number of units, granted (in shares)	1.9
Number of units, shares vested, net (in shares)	(1.8)
Number of units, cancelled and forfeited (in shares)	(0.4)
Number of units, outstanding at the end of year (in shares)	5.4	5.7
Weighted Average Grant-Date Fair Value per Share
Weighted average grant-date fair value, outstanding at the beginning of year (in dollars per share)	$ 39.62
weighted average grant-date fair value, granted (in dollars per share)	42.50	$ 41.38	$ 37.43
Weighted average grant-date fair value, shares vested, net (in dollars per share)	38.94
Weighted average grant-date fair value, canceled and forfeited (in dollars per share)	41.55
Weighted average grant-date fair value, outstanding at the end of year (in dollars per share)	$ 44.25	$ 39.62
PSUs
Number of Units
Number of units, granted (in shares)	0.2
Number of units, shares vested, net (in shares)	(0.5)
Number of units, outstanding at the end of year (in shares)	1.3
Performance-Based Stock Units, Achievement Of Company Performance Metrics
Weighted Average Grant-Date Fair Value per Share
Performance adjustments above target levels at vesting date (in shares)	0.2