COSTCO WHOLESALE CORP /NEW

0000001 - Document - Cover

0000002 - Document - Audit Information

9952151 - Statement - Consolidated Statements Of Income

9952152 - Statement - Consolidated Statements Of Comprehensive Income

9952153 - Statement - Consolidated Balance Sheets

9952154 - Statement - Consolidated Balance Sheets (Parenthetical)

9952155 - Statement - Consolidated Statements of Equity

9952156 - Statement - Consolidated Statements Of Cash Flows

9952157 - Disclosure - Summary of Significant Accounting Policies

9952158 - Disclosure - Investments

9952159 - Disclosure - Fair Value Measurement

9952160 - Disclosure - Debt

9952161 - Disclosure - Leases

9952162 - Disclosure - Stockholders' Equity

9952163 - Disclosure - Stock-Based Compensation Plans

9952164 - Disclosure - Income Taxes

9952165 - Disclosure - Net Income per Common and Common Equivalent Share

9952166 - Disclosure - Commitment and Contingencies

9952167 - Disclosure - Segment Reporting

995445 - Disclosure - Insider Trading Arrangements

995447 - Disclosure - Insider Trading Policies and Procedures

995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure

9955511 - Disclosure - Summary of Significant Accounting Policies (Policies)

9955512 - Disclosure - Summary of Significant Accounting Policies (Tables)

9955513 - Disclosure - Investments (Tables)

9955514 - Disclosure - Fair Value Measurement (Tables)

9955515 - Disclosure - Debt (Tables)

9955516 - Disclosure - Leases (Tables)

9955517 - Disclosure - Stockholders' Equity (Tables)

9955518 - Disclosure - Stock-Based Compensation Plans (Tables)

9955519 - Disclosure - Income Taxes (Tables)

9955520 - Disclosure - Net Income per Common and Common Equivalent Share Net Income per Common and Common Equivalent Share (Tables)

9955522 - Disclosure - Segment Reporting (Tables)

9955523 - Disclosure - Accounting Policies - Additional Information (Details)

9955525 - Disclosure - Accounting Policies - Cash and Cash Equivalents (Details)

9955526 - Disclosure - Accounting Policies - Merchandise Inventories (Details)

9955527 - Disclosure - Accounting Policies - Property and Equipment, Net (Details)

9955528 - Disclosure - Accounting Policies - Leases (Details)

9955529 - Disclosure - Accounting Policies - Goodwill and Acquired Intangible Assets (Details)

9955530 - Disclosure - Accounting Policies - Insurance/Self-Insurance Liabilities (Details)

9955531 - Disclosure - Accounting Policies - Derivatives (Details)

9955533 - Disclosure - Accounting Policies - Revenue Recognition (Details)

9955534 - Disclosure - Accounting Policies - Retirement Plans (Details)

9955535 - Disclosure - Accounting Policies - Stock-Based Compensation (Details)

9955536 - Disclosure - Investments - Available for Sale and Held to Maturity Investments (Details)

9955537 - Disclosure - Investments - Maturities of Available for Sale and Held to Maturity Securities (Details)

9955538 - Disclosure - Fair Value Measurement - Fair Value of Financial Assets and Financial Liabilities Measured on Recurring Basis (Details)

9955539 - Disclosure - Debt, Schedule Of Short-Term Debt (Details)

9955540 - Disclosure - Debt, Schedule of Long-Term Debt (Details)

9955541 - Disclosure - Debt, Carrying Value of Long-Term Debt (Details)

9955542 - Disclosure - Debt, Schedule Of Long-Term Debt Maturities (Details)

9955543 - Disclosure - Leases, Supplemental Balance Sheet Information (Details)

9955544 - Disclosure - Leases, Components of Lease Expense (Details)

9955545 - Disclosure - Leases, Supplemental Cash Flow Information (Details)

9955546 - Disclosure - Leases, Future Minimum Payments (Details)

9955547 - Disclosure - Stockholders' Equity - Additional Information (Details)

9955548 - Disclosure - Stockholders' Equity (Stock Repurchased During Period) (Details)

9955549 - Disclosure - Stock-Based Compensation Plans - Additional Information (Details)

9955550 - Disclosure - Stock-Based Compensation Plans - Summary of RSU Transactions (Details)

9955551 - Disclosure - Stock-Based Compensation Plans - Summary of Stock-Based Compensation Expense (Details)

9955552 - Disclosure - Income Taxes (Income Before Income Taxes) (Details)

9955553 - Disclosure - Income Taxes (Schedule of Foreign And Domestic Income Taxes) (Details)

9955554 - Disclosure - Income Taxes (Reconciliation Between Statutory And Effective Rates) (Details)

9955555 - Disclosure - Income Taxes (Components of Deferred Tax Assets And Liabilities) (Details)

9955556 - Disclosure - Income Taxes Narrative (Details)

9955557 - Disclosure - Income Taxes (Gross Unrecognized Tax Benefits) (Details)

9955558 - Disclosure - Net Income per Common and Common Equivalent Share - Schedule of Earnings per Share Effect on Net Income and Weighted Averegae Number of Dilutive Potential Common Stock (Details)

9955560 - Disclosure - Segment Reporting Information by Segment (Details)

9955561 - Disclosure - Segment Reporting Information by Segment (Details)

9955562 - Disclosure - Segment Reporting Information by Item Category (Details)