Subsequent Events Business Acquisitions (Narrative) (Details)		1 Months Ended	3 Months Ended
	May 18, 2018 USD ($)	Mar. 31, 2018 USD ($) employee	Mar. 31, 2018 USD ($) employee	Jun. 30, 2018 USD ($)	Mar. 01, 2018 USD ($) employee $ / shares	Jun. 30, 2017 USD ($)
Microsemi
Subsequent Event [Line Items]
Business acquisition, share price (in usd per share) | $ / shares					$ 68.78
Bridge Loan | Microsemi
Subsequent Event [Line Items]
Long term debt (up to)					$ 600,000,000
Bridge Loan | Term Loan Facility | Microsemi
Subsequent Event [Line Items]
Long term debt (up to)					$ 5,000,000,000
Debt instrument, term (in days)		364 days
Revolving Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity						$ 2,774,000,000.000
Revolving Credit Facility | 2020 Tranche
Subsequent Event [Line Items]
Maximum borrowing capacity		$ 3,122,000,000	$ 3,122,000,000
Foreign Line of Credit
Subsequent Event [Line Items]
Maximum borrowing capacity		125,000,000	125,000,000
Standby Letters of Credit
Subsequent Event [Line Items]
Maximum borrowing capacity		25,000,000	25,000,000
Line of Credit Facility Swingline Loan Sublimit
Subsequent Event [Line Items]
Maximum borrowing capacity		$ 25,000,000	25,000,000
Building
Subsequent Event [Line Items]
Purchase of building			$ 40,800,000
Microsemi
Subsequent Event [Line Items]
Number of employees | employee		4,800	4,800		4,800
Scenario, Forecast | Microsemi
Subsequent Event [Line Items]
Agreement termination fee				$ 290,000,000
Contingent reimbursement fee				35,000,000
Equity value acquired				8,350,000,000
Enterprise value				$ 10,150,000,000
Subsequent Event | Revolving Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 3,800,000,000.0
Subsequent Event | Revolving Credit Facility | 2023 Tranche
Subsequent Event [Line Items]
Maximum borrowing capacity	3,600,000,000
Subsequent Event | Revolving Credit Facility | 2020 Tranche
Subsequent Event [Line Items]
Maximum borrowing capacity	244,000,000
Subsequent Event | Foreign Line of Credit
Subsequent Event [Line Items]
Maximum borrowing capacity	250,000,000.0
Subsequent Event | Standby Letters of Credit
Subsequent Event [Line Items]
Maximum borrowing capacity	50,000,000.0
Subsequent Event | Line of Credit Facility Swingline Loan Sublimit
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 25,000,000.0
Subsequent Event | Base Rate | Minimum | Revolving Credit Facility | 2023 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	0.00%
Subsequent Event | Base Rate | Minimum | Revolving Credit Facility | 2020 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	0.25%
Subsequent Event | Base Rate | Maximum | Revolving Credit Facility | 2023 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	1.00%
Subsequent Event | Base Rate | Maximum | Revolving Credit Facility | 2020 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	1.25%
Subsequent Event | London Interbank Offered Rate (LIBOR) | Minimum | Revolving Credit Facility | 2023 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	1.00%
Subsequent Event | London Interbank Offered Rate (LIBOR) | Minimum | Revolving Credit Facility | 2020 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	1.25%
Subsequent Event | London Interbank Offered Rate (LIBOR) | Maximum | Revolving Credit Facility | 2023 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	2.00%
Subsequent Event | London Interbank Offered Rate (LIBOR) | Maximum | Revolving Credit Facility | 2020 Tranche
Subsequent Event [Line Items]
Basis spread on variable rate	2.25%