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Shareholders' Equity | 12 Months Ended
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Jul. 02, 2021
Share-based Payment Arrangement [Abstract] |
Shareholders' Equity | Shareholders’ Equity 2017 Performance Incentive Plan The types of awards that may be granted under the Western Digital Corporation Amended and Restated 2017 Performance Incentive Plan (as amended, the “2017 Performance Incentive Plan”) include stock options, stock appreciation rights (“SARs”), RSUs, PSUs, stock bonuses and other forms of awards granted or denominated in the Company’s common stock or units of the Company’s common stock, as well as cash bonus awards. Persons eligible to receive awards under the 2017 Performance Incentive Plan include officers and employees of the Company or any of its subsidiaries, directors of the Company and certain consultants and advisors to the Company or any of its subsidiaries. The vesting of awards under the 2017 Performance Incentive Plan is determined at the date of grant. Each award expires on a date determined at the date of grant; however, the maximum term of options and SARs under the 2017 Performance Incentive Plan is ten years after the grant date of the award. RSUs granted under the 2017 Performance Incentive Plan typically vest over periods ranging from one to four years from the date of grant. PSUs are granted to certain employees and vest only after the achievement of pre-determined performance conditions or market conditions and completion of requisite service periods. Once the performance conditions or market conditions are met, vesting of PSUs is generally subject to continued service by the employee. To the extent available, the Company issues shares out of treasury stock upon the vesting of awards, the exercise of employee stock options and the purchase of shares pursuant to the ESPP. Outstanding RSU and PSU awards have dividend equivalent rights which entitle holders of such outstanding awards to the same dividend value per share as holders of common stock. Dividend equivalent rights are subject to the same vesting and other terms and conditions as the corresponding unvested RSUs and PSUs. Dividend equivalent rights are accumulated and paid in additional shares when the underlying shares vest. As of July 2, 2021, the maximum number of shares of the Company’s common stock that was authorized for award grants under the 2017 Performance Incentive Plan was 105.6 million shares. Shares issued in respect of stock options and SARs granted under the 2017 Performance Incentive Plan count against the plan’s share limit on a one-for-one basis, whereas currently, shares issued in respect of any other type of award granted count against the plan’s share limit as 1.72 shares for every one share issued in connection with such award. The 2017 Performance Incentive Plan will terminate on August 4, 2025 unless terminated earlier by the Company’s Board of Directors. Employee Stock Purchase Plan Under the Company’s ESPP, eligible employees may authorize payroll deductions of up to 10% of their eligible compensation, subject to IRS limitations, during prescribed offering periods to purchase shares of the Company’s common stock at 95% of the fair market value of common stock either at the beginning of that offering period or on the applicable exercise date, whichever is less. A participant may participate in only one offering period at a time, and a new offering period generally begins each June 1st and December 1st. Each offering period is generally 24 months and consists of four exercise dates (each, generally six months following the start of the offering period or the preceding exercise date, as the case may be). If the fair market value of the Company’s common stock is less on a given exercise date than on the date of grant, employee participation in that offering period ends and participants are automatically re-enrolled in the next new offering period. During 2021, 2020 and 2019, the Company issued 3.2 million, 3.0 million, and 2.6 million shares, respectively, for aggregate purchase amounts of $115 million, $107 million and $102 million, respectively. Stock-based Compensation Expense The following tables present the Company’s stock-based compensation for equity-settled awards by type and financial statement line as well as the related tax benefit included in the Company’s Consolidated Statements of Operations:
|  |  |  |  | 2021 |  | 2020 |  | 2019
|  |  |  |  | (in millions)
Options |  |  |  |  | $ | — |  |  | $ | 7 |  |  | $ | 16 |
RSUs and PSUs |  |  |  |  | 282 |  |  | 268 |  |  | 263 |
ESPP |  |  |  |  | 36 |  |  | 33 |  |  | 27 |
Total |  |  |  |  | $ | 318 |  |  | $ | 308 |  |  | $ | 306 |
|  |  |  |  | 2021 |  | 2020 |  | 2019
|  |  |  |  | (in millions)
Cost of revenue |  |  |  |  | $ | 55 |  |  | $ | 51 |  |  | $ | 48 |
Research and development |  |  |  |  | 158 |  |  | 163 |  |  | 155 |
Selling, general and administrative |  |  |  |  | 105 |  |  | 94 |  |  | 103 |
Subtotal |  |  |  |  | 318 |  |  | 308 |  |  | 306 |
Tax benefit |  |  |  |  | (47) |  |  | (45) |  |  | (50) |
Total |  |  |  |  | $ | 271 |  |  | $ | 263 |  |  | $ | 256 |
Windfall tax benefits related to the vesting and exercise of stock-based awards, which are recognized as a component of the Company’s Income tax expense, were not material for the periods presented. Compensation cost related to unvested RSUs, PSUs, and rights to purchase shares of common stock under the ESPP will generally be amortized on a straight-line basis over the remaining average service period. The remaining compensation cost related to unvested stock options is immaterial as of July 2, 2021. The following table presents the unamortized compensation cost and weighted average service period of all unvested outstanding awards as of July 2, 2021:
| Unamortized Compensation Costs |  | Weighted Average Service Period
| (in millions) |  | (years)
RSUs and PSUs (1) | $ | 543 |  |  | 2.4
ESPP | 65 |  |  | 1.8
Total unamortized compensation cost | $ | 608 |  |  |
(1) Weighted average service period assumes the performance conditions are met for the PSUs. Plan Activities Stock Options The following table summarizes stock option activity under the Company’s incentive plans:
| Number of Shares |  | Weighted Average Exercise Price Per Share |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
| (in millions) |  |  |  | (in years) |  | (in millions)
Options outstanding at June 29, 2018 | 4.8 |  |  | $ | 64.23 |  |  |  |  |
Exercised | (0.4) |  |  | 39.58 |  |  |  |  | $ | 8 |
Canceled or expired | (0.5) |  |  | 74.79 |  |  |  |  |
Options outstanding at June 28, 2019 | 3.9 |  |  | 65.72 |  |  |  |  |
Exercised | (0.8) |  |  | 43.26 |  |  |  |  | $ | 12 |
Canceled or expired | (0.4) |  |  | 88.58 |  |  |  |  |
Options outstanding at July 3, 2020 | 2.7 |  |  | 69.16 |  |  |  |  |
Exercised | (0.4) |  |  | 44.34 |  |  |  |  | $ | 6 |
Canceled or expired | (0.8) |  |  | 75.42 |  |  |  |  |
Options outstanding at July 2, 2021 | 1.5 |  |  | $ | 72.84 |  |  | 1.20 |  | $ | 15 |
No options were granted in 2021, 2020 or 2019. All outstanding options were exercisable at July 2, 2021. RSUs and PSUs The following table summarizes RSU and PSU activity under the Company’s incentive plans:
| Number of Shares |  | Weighted Average Grant Date Fair Value |  | Aggregate Intrinsic Value at Vest Date
| (in millions) |  |  |  | (in millions)
RSUs and PSUs outstanding at June 29, 2018 | 12.6 |  |  | $ | 58.31 |  |  |
Granted | 7.3 |  |  | 54.82 |  |  |
Vested | (6.3) |  |  | 53.21 |  |  | $ | 360 |
Forfeited | (2.0) |  |  | 58.63 |  |  |
RSUs and PSUs outstanding at June 28, 2019 | 11.6 |  |  | 62.07 |  |  |
Granted | 7.4 |  |  | 55.32 |  |  |
Vested | (4.4) |  |  | 58.36 |  |  | $ | 252 |
Forfeited | (1.3) |  |  | 63.33 |  |  |
RSUs and PSUs outstanding at July 3, 2020 | 13.3 |  |  | 60.92 |  |  |
Granted | 8.8 |  |  | 40.40 |  |  |
Vested | (4.5) |  |  | 60.18 |  |  | $ | 196 |
Forfeited | (1.5) |  |  | 55.74 |  |  |
RSUs and PSUs outstanding at July 2, 2021 | 16.1 |  |  | $ | 50.12 |  |  |
RSUs and PSUs are generally settled in an equal number of shares of the Company’s common stock at the time of vesting of the units. Fair Value Valuation Assumptions RSU and PSU Grants The fair value of the Company’s RSU and PSU awards with a performance condition is determined based upon the closing price of the Company’s stock price on the date of grant. The fair value of PSU awards with a market condition is estimated using a Monte Carlo simulation model on the date of grant using historical volatility. ESPP — Black-Scholes-Merton Model The fair value of ESPP purchase rights issued is estimated at the date of grant of the purchase rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires the input of assumptions such as the expected stock price volatility and the expected period until options are exercised. Purchase rights under the ESPP are generally granted on either June 1st or December 1st of each year. The fair values of ESPP purchase rights have been estimated at the date of grant using a Black-Scholes-Merton option-pricing model with the following weighted average assumptions:
|  |  |  |  | 2021 |  | 2020 |  | 2019
Weighted-average expected term (in years) |  |  |  |  | 1.25 |  | 1.25 |  | 1.24
Risk-free interest rate |  |  |  |  | 0.10% |  | 0.55% |  | 2.25%
Stock price volatility |  |  |  |  | 0.56 |  | 0.59 |  | 0.35
Dividend yield |  |  |  |  | —% |  | 1.08% |  | 2.42%
Fair value |  |  |  |  | $21.59 |  | $12.76 |  | $16.89
Stock Repurchase Program The Company’s Board of Directors has authorized a stock repurchase program for the repurchase of up to $5.0 billion of the Company’s common stock, which authorization is effective through July 25, 2023. For the year ended July 2, 2021, the Company did not make any stock repurchases and has not repurchased any shares of its common stock pursuant to its stock repurchase program since the first quarter of fiscal 2019. Although the Company will reevaluate the repurchasing of common stock when appropriate, there can be no assurance if, when or at what level the Company may resume such activity. The remaining amount available to be repurchased under the Company’s current stock repurchase program as of July 2, 2021 was $4.5 billion. Repurchases under the stock repurchase program may be made in the open market or in privately negotiated transactions and may be made under a Rule 10b5-1 plan. Stock Reserved for Issuance The following table summarizes all common stock reserved for issuance at July 2, 2021:
| Number of Shares
| (in millions)
Outstanding awards and shares available for award grants | 33 |
ESPP | 6 |
Total | 39 |
Dividends to Shareholders The Company issued a quarterly cash dividend from the first quarter of fiscal 2013 up to the third quarter of fiscal 2020. In April 2020, the Company suspended its dividend to reinvest in the business and to support its ongoing deleveraging efforts.

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- Definition The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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