Segment And Geographic Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,372	$ 1,338	$ 4,183	$ 4,079
Long-Lived Assets	1,360		1,360		1,410
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	666	646	1,979	1,955
Long-Lived Assets	1,012		1,012		1,045
JAPAN
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	132	142	398	418
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	574	550	1,806	1,706
Long-Lived Assets	348		348		365
ICD Systems [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	422	418	1,320	1,299
Pacemaker Systems [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	266	264	788	779
Atrial Fibrillation Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	253	235	761	705
Vascular Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	169	168	521	521
Structural Heart Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	155	149	480	464
Neuromodulation Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 107	$ 104	$ 313	$ 311