Business Combinations Business Combinations (Schedule of Variable Interest Entities) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Mar. 29, 2014
Variable Interest Entity [Line Items]
Goodwill, Acquired During Period	$ 407
Other long-term assets	2
Total assets acquired	526
Current liabilities	13
Patented Technology [Member]
Variable Interest Entity [Line Items]
Business Combination, Intangible Assets, Other than Goodwill	54
In Process Research and Development [Member]
Variable Interest Entity [Line Items]
Business Combination, Indefinite-Lived Intangible Assets	60
Spinal Modulation [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents		15
Other current assets		5
Goodwill, Acquired During Period	82
Other long-term assets		1
Total assets acquired		155
Current liabilities		6
Deferred income taxes, net		19
Total liabilities		25
Non-controlling interest		98
Spinal Modulation [Member] | Patented Technology [Member]
Variable Interest Entity [Line Items]
Business Combination, Intangible Assets, Other than Goodwill		7
Spinal Modulation [Member] | In Process Research and Development [Member]
Variable Interest Entity [Line Items]
Business Combination, Indefinite-Lived Intangible Assets		45
CardioMEMS, Inc. [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents		7
Other current assets		7
Goodwill, Acquired During Period	83
Other long-term assets		2
Total assets acquired		162
Current liabilities		5
Deferred income taxes, net		23
Other liabilities		3
Total liabilities		31
Non-controlling interest		64
CardioMEMS, Inc. [Member] | In Process Research and Development [Member]
Variable Interest Entity [Line Items]
Business Combination, Indefinite-Lived Intangible Assets		$ 63