Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Apr. 29, 2016	Jan. 29, 2016	Oct. 30, 2015	Jul. 31, 2015	Apr. 24, 2015	Jan. 23, 2015	Oct. 24, 2014	Jul. 25, 2014	Apr. 29, 2016	Apr. 24, 2015	Apr. 25, 2014
Inventories
Finished goods	$ 2,242				$ 2,268				$ 2,242	$ 2,268
Work in process	499				509				499	509
Raw materials	732				686				732	686
Total	3,473				3,463				3,473	3,463
Property, Plant, and Equipment
Depreciation expense									889	573	$ 501
Property, plant, and equipment, gross	9,714				8,863				9,714	8,863
Less: Accumulated depreciation	(4,873)				(4,164)				(4,873)	(4,164)
Property, plant, and equipment, net	4,841				4,699				4,841	4,699	2,392
Changes in Product Warranty Obligations
Balance as of beginning of period				$ 135				$ 32	135	32
Fair value of warranty obligation acquired from Covidien										23
Technology upgrade commitment										74
Warranty claims provision									64	30
Settlements made									(91)	(24)
Balance as of end of period	$ 108				$ 135				108	135	32
Shipping and handling costs									316	284	194
Numerator:
Net income attributable to ordinary shareholders									$ 3,538	$ 2,675	$ 3,065
Denominator:
Basic weighted average shares outstanding (shares)									1,409.6	1,095.5	1,002.1
Effect of dilutive securities:
Employee stock options (shares)									12.2	9.1	7.1
Employee restricted stock units (shares)									4.0	4.3	4.3
Other (shares)									0.1	0.1	0.1
Diluted weighted average shares outstanding (in shares)									1,425.9	1,109.0	1,013.6
Basic earnings per share (in dollars per share)	$ 0.79	$ 0.78	$ 0.37	$ 0.58	$ 0.00	$ 0.99	$ 0.84	$ 0.88	$ 2.51	$ 2.44	$ 3.06
Diluted earnings per share (in dollars per share)	$ 0.78	$ 0.77	$ 0.36	$ 0.57	$ 0.00	$ 0.98	$ 0.83	$ 0.87	$ 2.48	$ 2.41	$ 3.02
Minimum [Member]
Intangible Assets
Intangible assets, estimated useful life									3 years
Maximum [Member]
Intangible Assets
Intangible assets, estimated useful life									20 years
Land and land improvements [Member]
Property, Plant, and Equipment
Property, plant, and equipment, gross	$ 215				$ 217				$ 215	$ 217
Land and land improvements [Member] | Maximum [Member]
Property, Plant, and Equipment
Property, plant, and equipment, useful life									20 years
Buildings and leasehold improvements [Member]
Property, Plant, and Equipment
Property, plant, and equipment, gross	2,394				2,314				$ 2,394	2,314
Buildings and leasehold improvements [Member] | Maximum [Member]
Property, Plant, and Equipment
Property, plant, and equipment, useful life									40 years
Equipment [Member]
Property, Plant, and Equipment
Property, plant, and equipment, gross	6,328				5,649				$ 6,328	5,649
Property, plant, and equipment, useful life									15 years
Equipment [Member] | Minimum [Member]
Property, Plant, and Equipment
Property, plant, and equipment, useful life									3 years
Equipment [Member] | Maximum [Member]
Property, Plant, and Equipment
Property, plant, and equipment, useful life									7 years
Construction in progress [Member]
Property, Plant, and Equipment
Property, plant, and equipment, gross	777				$ 683				$ 777	$ 683
Tyco International and TE Connectivity [Member]
Changes in Product Warranty Obligations
Receivables, tax sharing agreement	261								261
Indemnification Agreement [Member] | Tyco International and TE Connectivity [Member]
Changes in Product Warranty Obligations
Guaranty commitments, tax sharing agreement	$ 284								$ 284
Stock options [Member]
Effect of dilutive securities:
Number of shares excluded from computation of earnings per share (shares)									4.0	2.0	5.0
Employee Stock Option and Restricted Stock Units (RSUs) [Member]
Effect of dilutive securities:
Number of shares excluded from computation of earnings per share (shares)									20.0	5.0	0.0
Restricted Stock Units (RSUs) [Member]
Effect of dilutive securities:
Number of shares excluded from computation of earnings per share (shares)									1.0	1.0	1.0