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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Taxes
Income before provision for income taxes was as follows:
 Year Ended December 31,
 202220212020
 (in thousands)
United States$4,690,442 $5,365,547 $2,789,064 
Foreign573,487 474,556 410,285 
Income before income taxes$5,263,929 $5,840,103 $3,199,349 
Components of Provision for Income Taxes
The components of provision for income taxes for all periods presented were as follows:
 
 Year Ended December 31,
 202220212020
 (in thousands)
Current tax provision:
Federal$109,910 $57,526 $24,221 
State119,795 109,641 65,821 
Foreign676,827 357,189 277,846 
Total current906,532 524,356 367,888 
Deferred tax provision:
Federal(52,434)188,937 (57,765)
State(30,691)(2,700)164,685 
Foreign(51,402)13,282 (36,854)
Total deferred(134,527)199,519 70,066 
Provision for income taxes$772,005 $723,875 $437,954 
Reconciliation of Provision for Income Taxes
A reconciliation of the provision for income taxes, with the amount computed by applying the statutory Federal income tax rate to income before income taxes is as follows:

 Year Ended December 31,
 202220212020
 (in thousands)
Expected tax expense at U.S. Federal statutory rates$1,105,428 $1,226,422 $671,864 
State income taxes, net of Federal income tax effect92,084 111,400 65,808 
Foreign earnings at other than U.S. rates112,628 (23,963)12,212 
Federal and California R&D tax credits(146,615)(82,909)(113,882)
Valuation allowance on California R&D tax credits— — 183,283 
Excess tax benefits on stock-based compensation(75,211)(290,899)(339,436)
Tax effects of the Tax Cuts and Jobs Act(368,976)(254,763)(87,194)
Nondeductible Officers Compensation33,836 26,874 30,351 
Other18,831 11,713 14,948 
Provision for income taxes$772,005 $723,875 $437,954 
Effective Tax Rate15 %12 %14 %
Deferred Tax Assets and Liabilities
The components of deferred tax assets and liabilities were as follows:
 
 As of December 31,
 20222021
 (in thousands)
Deferred tax assets:
Stock-based compensation$443,456 $351,238 
Federal and California tax R&D credits342,589 484,793 
Foreign tax credits11,899 2,045 
Capitalized Research Expenses323,998 — 
Accruals and reserves119,732 165,214 
Operating leases551,418 570,830 
Foreign Net Operating Losses20,092 8,043 
Unrealized Gain/Loss(47,283)13,772 
Other2,234 5,420 
Gross deferred tax assets1,768,135 1,601,355 
Depreciation & amortization(456,717)(388,115)
Operating leases(473,928)(506,403)
       Acquisitions(232,607)(240,334)
Gross deferred tax liabilities(1,163,252)(1,134,852)
Valuation allowance(343,342)(318,408)
Net deferred tax assets$261,541 $148,095 
Summary of Changes in Unrecognized Tax Benefits The aggregate changes in the Company’s total gross amount of unrecognized tax benefits are summarized as follows (in thousands):
 
Balances as of December 31, 2020$140,124 
Increases related to tax positions taken during prior periods 27,116 
Decreases related to tax positions taken during prior periods— 
Increases related to tax positions taken during the current period35,317 
Decreases related to expiration of statute of limitations— 
Balances as of December 31, 2021202,557 
Increases related to tax positions taken during prior periods — 
Decreases related to tax positions taken during prior periods (2,445)
Increases related to tax positions taken during the current period26,865 
Decreases related to expiration of statute of limitations— 
Balances as of December 31, 2022$226,977