CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
OPERATING ACTIVITIES:
Net income	$ 198.9	$ 397.3	$ 135.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	81.6	91.4	113.3
Stock-based compensation	103.1	92.9	73.2
Loss on early extinguishment of debt	0.0	0.0	8.0
Gain on sale of product lines	0.0	(0.5)	(14.5)
Amortization of acquired intangibles	85.5	85.7	78.6
Impairment and (gain) losses on sale of property, plant and equipment	(3.0)	0.3	21.8
Amortization of debt discount and debt issuance costs	72.4	60.2	39.6
Amortization of inventory fair value adjustment in connection with acquisition	0.0	0.0	5.8
Other non-cash (income) expenses	11.4	9.9	(2.4)
Changes in operating assets and liabilities:
Accounts receivable	(49.2)	20.2	5.0
Inventories	(51.8)	(6.6)	32.7
Operating lease right-of-use assets, net	(6.2)	11.3	11.6
Prepayments and other current and non-currents assets	(14.3)	(4.8)	17.3
Income taxes, net	(21.1)	16.0	31.3
Accounts payable	47.0	(34.0)	(11.7)
Accrued payroll and related expenses	0.3	0.9	11.1
Operating lease liabilities	0.6	(9.0)	(11.6)
Accrued expenses and other current and non-current liabilities	4.1	7.5	(20.3)
Net cash provided by operating activities	459.3	738.7	524.3
INVESTING ACTIVITIES:
Payments for acquisition of property, plant and equipment	(91.2)	(84.8)	(86.0)
Payment for asset acquisition	0.0	(10.0)	(4.0)
Proceeds from sale of product lines	0.0	1.3	20.1
Purchases of short-term investments	(1,085.1)	(1,991.0)	(1,341.3)
Proceeds from maturities and sales of short-term investments	973.6	2,062.2	423.5
Term loan funding provided to NeoPhotonics	(30.0)	0.0	0.0
Proceeds from the sales of property and equipment	6.4	23.3	0.0
Net cash (used in) provided by investing activities	(226.3)	1.0	(987.7)
FINANCING ACTIVITIES:
Repurchase of common stock	(543.9)	(236.0)	(200.0)
Proceeds from the issuance of convertible notes, net of issuance costs	854.1	0.0	1,042.2
Tax payments related to restricted stock	(39.0)	(39.7)	(14.0)
Proceeds from employee stock plans	13.5	12.6	9.9
Payment for conversions of 2024 Notes	(1.8)	0.0	0.0
Principal payments on finance leases	0.0	(0.5)	(12.5)
Proceeds from the exercise of stock options	0.0	0.2	0.7
Repayment of term loan	0.0	0.0	(497.5)
Net cash provided by (used in) financing activities	282.9	(263.4)	328.8
Increase (decrease) in cash and cash equivalents	515.9	476.3	(134.6)
Cash and cash equivalents at beginning of period	774.3	298.0	432.6
Cash and cash equivalents at end of period	1,290.2	774.3	298.0
Supplemental disclosure of cash flow information:
Cash paid for taxes	57.0	50.0	7.6
Cash paid for interest	7.5	6.4	13.4
Supplemental disclosure of non-cash transactions:
Unpaid property, plant and equipment in accounts payable and accrued expenses	3.4	10.6	12.3
Right-of-use assets obtained in exchange for new operating lease liabilities	14.8	1.4	2.2
Net transfer of assets from property plant and equipment to assets held-for-sale	0.0	0.0	3.1
Repurchase of common stock pending settlement	$ 10.1	$ 5.0	$ 0.0