Intangible Assets And Goodwill (Amortized Intangible Assets, Excluding Goodwill, By Business Segment) (Details) (USD $) In Millions, unless otherwise specified	Apr. 04, 2015	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 94	$ 77
Accumulated Amortization	56	54
Products
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	89	77
Accumulated Amortization	56	54
Services
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5	0
Accumulated Amortization	$ 0	$ 0