Income Taxes , Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Apr. 26, 2019	Apr. 27, 2018
Deferred tax assets:
Net operating loss, capital loss, and credit carryforwards	$ 6,574	$ 7,463
Other accrued liabilities	389	410
Accrued compensation	315	209
Pension and post-retirement benefits	300	256
Stock-based compensation	162	190
Other	339	332
Inventory	194	207
Federal and state benefit on uncertain tax positions	83	67
Interest limitation	111	0
Unrealized loss on available-for-sale securities and derivative financial instruments	17	93
Gross deferred tax assets	8,484	9,227
Valuation allowance	(6,300)	(7,166)
Total deferred tax assets	2,184	2,061
Deferred tax liabilities:
Intangible assets	(1,614)	(1,697)
Realized loss on derivative financial instruments	(70)	(69)
Other	(152)	(143)
Accumulated depreciation	(38)	(38)
Outside basis difference of subsidiaries	(119)	(131)
Total deferred tax liabilities	(1,993)	(2,078)
Prepaid income taxes	363	406
Income tax receivables	335	315
Tax assets, net	889	704
Reported as (after valuation allowance and jurisdictional netting):
Other current assets	648	662
Tax assets	1,519	1,465
Deferred tax liabilities	$ (1,278)	$ (1,423)