Business Acquisitions (Narrative) (Details) - USD ($) $ in Thousands, shares in Millions			3 Months Ended
	Apr. 04, 2016	Aug. 03, 2015	Jun. 30, 2016
Atmel Corporation [Member]
Business Acquisition [Line Items]
Cash paid for shares	$ 2,980,000
Shares issued as part of acquisition	10.1
Transaction and other fees incurred in transaction	$ 14,900
Non cash consideration of certain share-based payment awards	7,500
Total consideration transferred	3,470,000
Payments to Acquire Businesses Portion Funded by Foreign Subsidiaries Cash Balances	2,040,000
Payments to Acquire Businesses Portion Funded by Additional LIne of Credit Borrowings	940,000
Net deferred tax liability for future amortization expense of acquired intangible assets	163,500
Net deferred tax assets acquired in a business combination	$ 49,466
Revenue of acquiree included in statement of income since the acquisition date			$ 219,000
Net loss of acquiree included in statements of income since the acquisition date			$ 163,600
Micrel Incorporated [Member]
Business Acquisition [Line Items]
Cash paid for shares		$ 430,000
Shares issued as part of acquisition		8.6
Non cash consideration of certain share-based payment awards		$ 4,100
Cash paid in a business combination for employee vested stock awards		13,100
Total consideration transferred		816,200
Net deferred tax liability for future amortization expense of acquired intangible assets		99,700
Net deferred tax assets acquired in a business combination		$ 11,400