Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Apr. 24, 2015	Jan. 23, 2015	Oct. 24, 2014	Jul. 25, 2014	Apr. 25, 2014	Jan. 24, 2014	Oct. 25, 2013	Jul. 26, 2013	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Inventories
Finished goods	$ 2,268				$ 1,196				$ 2,268	$ 1,196
Work in process	509				247				509	247
Raw materials	686				282				686	282
Total	3,463				1,725				3,463	1,725
Property, Plant, and Equipment
Property, plant, and equipment, gross	8,863				6,439				8,863	6,439
Less: Accumulated depreciation	(4,164)				(4,047)				(4,164)	(4,047)
Property, plant, and equipment, net	4,699				2,392				4,699	2,392	$ 2,490
Depreciation expense									573	501	488
Changes in Product Warranty Obligations
Balance as of beginning of period				$ 32				$ 35	32	35
Fair value of warranty obligation acquired from Covidien									23
Technology upgrade commitment									74
Warranty claims provision									30	25
Settlements made									(24)	(28)
Balance as of end of peridod	135				32				135	32	35
Accrued certain litigations charges	879				917				879	917
Shipping and handling costs									284	194	182
AOCI
Unrealized Gain/(Loss) on Investments								97		97	130
Cumulative Translation Adjustments								205		205	306
Net Change in Retirement Obligations								(852)		(852)	(834)
Unrealized Gain/(Loss) on Derivatives								58		58	(75)
Accumulated other comprehensive loss, beginning of period				$ (597)				$ (492)	(597)	(492)	(473)
OCI
Unrealized Gain/(Loss) on Investments									20	(103)	(33)
Cumulative Translation Adjustments									(495)	13	(21)
Net Change in Retirement Obligations									(366)	87	(18)
Unrealized Gain/(Loss) on Derivatives									254	(102)	53
Other comprehensive income (loss)									(587)	(105)	(19)
Cumulative Translation Adjustments - Correction of classification											(80)
Unrealized (Loss) Gain on Derivatives - Correction of classification											80
Unrealized Gain/(Loss) on Investments											97
Cumulative Translation Adjustments											205
Net Change in Retirement Obligations											(852)
Unrealized Gain/(Loss) on Derivatives											58
Accumulated other comprehensive loss, end of period	$ (1,184)				$ (597)				(1,184)	(597)	(492)
Earnings Per Share Reconciliation
Net income attributable to ordinary shareholders									$ 2,675	$ 3,065	$ 3,467
Basic weighted average shares outstanding (in shares)									1,095.5	1,002.1	1,019.3
Effect of dilutive securities:
Employee stock options (in shares)									9.1	7.1	2.8
Employee restricted stock units (in shares)									4.3	4.3	5.3
Other (in shares)									0.1	0.1	0.1
Diluted weighted average shares outstanding (in shares)									1,109.0	1,013.6	1,027.5
Basic earnings per share (in dollars per share)	$ 0.00	$ 0.99	$ 0.84	$ 0.88	$ 0.45	$ 0.76	$ 0.90	$ 0.94	$ 2.44	$ 3.06	$ 3.40
Diluted earnings per share (in dollars per share)	$ 0.00	$ 0.98	$ 0.83	$ 0.87	$ 0.44	$ 0.75	$ 0.89	$ 0.93	$ 2.41	$ 3.02	$ 3.37
Tyco International and TE Connectivity
Changes in Product Warranty Obligations
Receivables, tax sharing agreement	$ 296								$ 296
Tyco International and TE Connectivity | Guarantee commitments and indemnifications
Changes in Product Warranty Obligations
Guaranty commitments, tax sharing agreement	481								$ 481
Stock Options
Effect of dilutive securities:
Number of shares excluded from computation of earnings per share (in shares)									2.0	5.0	38.0
Minimum
Intangible Assets
Intangible assets, estimated useful life									3 years
Maximum
Intangible Assets
Intangible assets, estimated useful life									20 years
Land and land improvements
Property, Plant, and Equipment
Property, plant, and equipment, gross	217				$ 152				$ 217	$ 152
Land and land improvements | Maximum
Property, Plant, and Equipment
Property, plant, and equipment, useful life									20 years
Buildings and leasehold improvements
Property, Plant, and Equipment
Property, plant, and equipment, gross	2,314				1,565				$ 2,314	1,565
Buildings and leasehold improvements | Maximum
Property, Plant, and Equipment
Property, plant, and equipment, useful life									40 years
Equipment
Property, Plant, and Equipment
Property, plant, and equipment, gross	5,649				4,409				$ 5,649	4,409
Property, plant, and equipment, general useful life range, minimum									3 years
Property, plant, and equipment, general useful life range, maximum									7 years
Equipment | Maximum
Property, Plant, and Equipment
Property, plant, and equipment, useful life									15 years
Construction in progress
Property, Plant, and Equipment
Property, plant, and equipment, gross	$ 683				$ 313				$ 683	$ 313