CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
OPERATING ACTIVITIES:
Net income	$ 164.2	$ 375.8
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	61.2	70.4
Stock-based compensation	75.4	68.7
Gain on sale of product lines	0.0	(0.5)
Amortization of acquired intangibles	64.3	63.6
(Gain) loss on sales and dispositions of property, plant and equipment	(4.3)	5.4
Amortization of debt discount and debt issuance costs	48.6	43.9
Other non-cash expense	9.5	7.3
Changes in operating assets and liabilities:
Accounts receivable	(29.4)	8.2
Inventories	(26.5)	(20.2)
Operating lease right-of-use assets, net	(6.9)	8.4
Prepayments and other current and non-currents assets	(8.2)	(5.6)
Income taxes, net	(20.2)	28.2
Accounts payable	14.3	(41.6)
Accrued payroll and related expenses	(6.8)	(7.5)
Operating lease liabilities	5.4	(6.1)
Accrued expenses and other current and non-current liabilities	4.4	16.1
Net cash provided by operating activities	345.0	614.5
INVESTING ACTIVITIES:
Payments for acquisition of property, plant and equipment	(62.6)	(66.4)
Payment for asset acquisition	0.0	(10.0)
Proceeds from sale of product lines	0.0	1.3
Purchases of short-term investments	(946.8)	(1,515.7)
Proceeds from maturities and sales of short-term investments	664.0	1,394.5
Term loan funding provided to NeoPhotonics	(30.0)	0.0
Proceeds from the sales of property, plant and equipment	6.4	0.0
Net cash used in investing activities	(369.0)	(196.3)
FINANCING ACTIVITIES:
Repurchase of common stock	(448.6)	0.0
Proceeds from the issuance of 0.50% Convertible Notes due 2028, net of issuance costs	854.8	0.0
Payment of withholding taxes related to net share settlement of restricted stock units	(32.8)	(33.8)
Proceeds from employee stock plans	6.6	5.5
Principal payments on finance leases	0.0	(0.4)
Proceeds from the exercise of stock options	0.0	0.2
Net cash provided by (used in) financing activities	380.0	(28.5)
Increase in cash and cash equivalents	356.0	389.7
Cash and cash equivalents at beginning of period	774.3	298.0
Cash and cash equivalents at end of period	1,130.3	687.7
Supplemental disclosure of cash flow information:
Cash paid for taxes	53.8	30.9
Cash paid for interest	3.8	3.8
Supplemental disclosure of non-cash transactions:
Unpaid property, plant and equipment in accounts payable and accrued expenses	6.2	6.7
Repurchase of common stock pending settlement	2.1	0.0
Issuance costs in current liabilities	0.7	0.0
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 13.7	$ 1.4