Product And Geographic Information Product and Geographic Information (Schedule of Long-Lived Assets By Geographic Location) (Details) (USD $) In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 1,343	$ 1,410	$ 1,425
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	1,005	1,045	1,036
Other foreign countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 338	$ 365	$ 389