Fair Value Measurements And Financial Instruments - Summary of Level 3 Fair Value Measurements of Contingent Consideration (Details) (Fair Value, Inputs, Level 3, USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Jan. 03, 2015
Nanostim
Fair Value Inputs, Discount Rate	5.00%
Probability of Payment	90.00%
Nanostim | Contingent Consideration Liability
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	27	$ 50
Income Approach Valuation Technique | Contingent Consideration Liability
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	27
Income Approach Valuation Technique | Nanostim | Contingent Consideration Liability
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	27