Accumulated Other Comprehensive Income and Supplemental Equity Information Supplemental Equity Schedules (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			$ 4,404	$ 4,094
Net earnings	246	107	485	329
Other comprehensive income (loss)	(19)	(15)	(9)	(40)
Cash dividends declared			(154)	(142)
Repurchases of common stock			(434)	(542)
Stock-based compensation			34	33
Common stock issued under employee stock plans and other, net			78	102
Tax benefit from stock plans			11
Tax shortfall from stock plans				(6)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			(344)
Additions (purchases) of noncontrolling ownership interests				249
Ending Balance	4,035	4,077	4,035	4,077
Spinal Modulation [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Measurement period fair value adjustment to noncontrolling interest	36		(36)
Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			4,231	4,094
Net earnings			519	338
Other comprehensive income (loss)			(9)	(40)
Cash dividends declared			(154)	(142)
Repurchases of common stock			(434)	(542)
Stock-based compensation			34	33
Common stock issued under employee stock plans and other, net			78	102
Tax benefit from stock plans			11
Tax shortfall from stock plans				(6)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			(297)
Additions (purchases) of noncontrolling ownership interests				0
Ending Balance	3,979	3,837	3,979	3,837
Parent [Member] | Spinal Modulation [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Measurement period fair value adjustment to noncontrolling interest			0
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			173	0
Net earnings			(34)	(9)
Other comprehensive income (loss)			0	0
Cash dividends declared			0	0
Repurchases of common stock			0	0
Stock-based compensation			0	0
Common stock issued under employee stock plans and other, net			0	0
Tax benefit from stock plans			0
Tax shortfall from stock plans				0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			(47)
Additions (purchases) of noncontrolling ownership interests				249
Ending Balance	56	240	56	240
Noncontrolling Interest [Member] | Spinal Modulation [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Measurement period fair value adjustment to noncontrolling interest			$ (36)