Employee Stock Benefit Plans (Schedule Of Options Outstanding And Expected To Vest) (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 30, 2016 USD ($) $ / shares shares
Employee Benefits and Share-based Compensation [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number | shares	7.6
Weighted-Average Exercise Price per Share, Options outstanding and expected to vest | $ / shares	$ 24.59
Weighted-Average Remaining Contractual Term (in years), Options outstanding and expected to vest	2 years 8 months 12 days
Aggregate Intrinsic Value, Options outstanding and expected to vest | $	$ 44.8
Number Of Shares, Options exercisable | shares	6.6
Weighted-Average Exercise Price per Share, Options exercisable | $ / shares	$ 24.15
Weighted-Average Remaining Contractual Term (in years), Options exercisable	2 years 5 months 19 days
Aggregate Intrinsic Value, Options exercisable | $	$ 41.3