Consolidated Statements of Shareholders' Equity (USD $) In Millions, except Share data, unless otherwise specified	Total	Spinal Modulation [Member]	Noncontrolling Interest [Member] Spinal Modulation [Member]	Common Stock [Member] Parent [Member]	Additional Paid-in Capital [Member] Parent [Member]	Retained Earnings [Member] Parent [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Parent [Member]	Noncontrolling Interest [Member] Spinal Modulation [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2011	$ 4,475			$ 32	$ 43	$ 4,384	$ 16		$ 0
Balance, shares at Dec. 31, 2011				319,615,965
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	752					752			0
Other comprehensive income (loss)	30						30		0
Cash dividends declared	(284)					(284)
Repurchases of commmon stock, shares				(27,670,874)
Repurchases of common stock, value	(1,058)			(3)	(221)	(834)
Stock-based compensation	69				69
Common stock issued under stock plans and other, net - shares				3,703,236
Common stock issued under stock plans and other, net - value	119			1	118
Tax benefit (shortfall) from stock plans	(9)				(9)
Balance at Dec. 29, 2012	4,094			30	0	4,018	46		0
Balance, shares at Dec. 29, 2012				295,648,327
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	692					723			(31)
Other comprehensive income (loss)	0						0		0
Cash dividends declared	(286)					(286)
Repurchases of commmon stock, shares				(18,385,436)
Repurchases of common stock, value	(808)			(2)	(287)	(519)
Stock-based compensation	65				65
Common stock issued under stock plans and other, net - shares				11,854,461
Common stock issued under stock plans and other, net - value	443			1	442
Additions in noncontrolling ownership interests	204	84							204
Balance at Dec. 28, 2013	4,404			29	220	3,936	46		173
Balance, shares at Dec. 28, 2013	289,117,352			289,117,352
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	955					1,002			(47)
Other comprehensive income (loss)	(219)						(219)		0
Cash dividends declared	(309)					(309)
Repurchases of commmon stock, shares				(6,670,817)
Repurchases of common stock, value	(434)			(1)	(247)	(186)
Stock-based compensation	71				69				2
Common stock issued under stock plans and other, net - shares				4,213,366
Common stock issued under stock plans and other, net - value	135			1	134
Tax benefit (shortfall) from stock plans	21				21
Measurement period fair value adjustment to noncontrolling interest	(36)		(36)
Purchase of shares from noncontrolling ownership interest	(344)				(79)	(218)			(47)
Balance at Jan. 03, 2015	$ 4,244			$ 29	$ 118	$ 4,225	$ (173)		$ 45
Balance, shares at Jan. 03, 2015	286,659,901			286,659,901