COSTCO WHOLESALE CORP /NEW

0001001 - Document - Cover

1001002 - Statement - Condensed Consolidated Statements Of Income

1002003 - Statement - Condensed Consolidated Statements Of Comprehensive Income

1003004 - Statement - Condensed Consolidated Balance Sheets

1004005 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)

1005006 - Statement - Consolidated Statement of Stockholders' Equity Statement

1006007 - Statement - Condensed Consolidated Statements Of Cash Flows

2101101 - Disclosure - Summary of Significant Accounting Policies

2105102 - Disclosure - Investments

2109103 - Disclosure - Fair Value Measurement

2112104 - Disclosure - Debt

2115105 - Disclosure - Equity

2120106 - Disclosure - Stock-Based Compensation Plans

2125107 - Disclosure - Net Income per Common and Common Equivalent Share

2128108 - Disclosure - Commitments and Contingencies

2130109 - Disclosure - Segment Reporting

2202201 - Disclosure - Summary of Significant Accounting Policies (Policies)

2306302 - Disclosure - Investments (Tables)

2310303 - Disclosure - Fair Value Measurement (Tables)

2313304 - Disclosure - Debt (Tables)

2316305 - Disclosure - Equity (Tables)

2321306 - Disclosure - Stock-Based Compensation Plans (Tables)

2326307 - Disclosure - Net Income per Common and Common Equivalent Share (Tables)

2331308 - Disclosure - Segment Reporting (Tables)

2404401 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail)

2407402 - Disclosure - Investments - Available-for-sale and Held-to-maturity Investments (Detail)

2408403 - Disclosure - Investments - Maturities of Available-for-sale and Held-to-maturity Securities (Details)

2411404 - Disclosure - Fair Value Measurement - Fair Value of Financial Assets and Financial Liabilities Measured on Recurring Basis (Details)

2414405 - Disclosure - Debt (Carrying Value and Estimated Fair Value of Company's Long-term Debt) (Details)

2417406 - Disclosure - Equity - Additional Information - Dividends (Detail)

2418407 - Disclosure - Equity (Stock Repurchased During Period) (Details)

2419408 - Disclosure - Equity - Additional Information - Stock Repurchase Programs (Details)

2422409 - Disclosure - Stock-Based Compensation Plans - Additional Information (Detail)

2423410 - Disclosure - Stock-Based Compensation Plans - Summary of RSU Transactions (Details)

2424411 - Disclosure - Stock-Based Compensation Plans - Summary of Stock-Based Compensation Expense (Details)

2427412 - Disclosure - Net Income per Common and Common Equivalent Share - Schedule of Earnings per Share Effect on Net Income and Weighted Average Number of Dilutive Potential Common Stock (Details)

2432414 - Disclosure - Segment Reporting Information by Segment (Detail)

2433415 - Disclosure - Segment Reporting Segment Reporting Information by Item Category (Details)