| COSTCO WHOLESALE CORP /NEW (COST) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Q4-CY2025 | Q3-CY2025 | Q2-CY2025 | Q1-CY2025 | Q4-CY2024 | Q3-CY2024 | Q2-CY2024 | Q1-CY2024 | Q4-CY2023 | Q3-CY2023 | Q2-CY2023 | Q1-CY2023 | Q4-CY2022 | Q3-CY2022 | Q2-CY2022 | Q1-CY2022 | Q4-CY2021 | Q3-CY2021 | Q2-CY2021 | Q1-CY2021 | Q4-CY2020 | Q3-CY2020 | Q2-CY2020 | Q1-CY2020 | Q4-CY2019 | Q3-CY2019 | Q2-CY2019 | Q1-CY2019 | Q4-CY2018 | Q3-CY2018 | Q2-CY2018 | Q1-CY2018 | Q4-CY2017 | Q3-CY2017 | Q2-CY2017 | Q1-CY2017 | Q4-CY2016 | Q3-CY2016 | Q2-CY2016 | Q1-CY2016 | Q4-CY2015 | Q3-CY2015 | Q2-CY2015 | Q1-CY2015 | Q4-CY2014 | Q3-CY2014 | Q2-CY2014 | Q1-CY2014 | Q4-CY2013 | |
| Balance Sheet Date | 2025-Aug-31 | 2025-May-11 | 2025-Feb-16 | 2024-Nov-24 | 2024-Sep-01 | 2024-May-12 | 2024-Feb-18 | 2023-Nov-26 | 2023-Sep-03 | 2023-May-07 | 2023-Feb-12 | 2022-Nov-20 | 2022-Aug-28 | 2022-May-08 | 2022-Feb-13 | 2021-Nov-21 | 2021-Aug-29 | 2021-May-09 | 2021-Feb-14 | 2020-Nov-22 | 2020-Aug-30 | 2020-May-10 | 2020-Feb-16 | 2019-Nov-24 | 2019-Sep-01 | 2019-May-12 | 2019-Feb-17 | 2018-Nov-25 | 2018-Sep-02 | 2018-May-13 | 2018-Feb-18 | 2017-Nov-26 | 2017-Sep-03 | 2017-May-07 | 2017-Feb-12 | 2016-Nov-20 | 2016-Aug-28 | 2016-May-08 | 2016-Feb-14 | 2015-Nov-22 | 2015-Aug-30 | 2015-May-10 | 2015-Feb-15 | 2014-Nov-23 | 2014-Aug-31 | 2014-May-11 | 2014-Feb-16 | 2013-Nov-24 | |
| Fiscal Period | Q4-FY2025 | Q3-FY2025 | Q2-FY2025 | Q1-FY2025 | Q4-FY2024 | Q3-FY2024 | Q2-FY2024 | Q1-FY2024 | Q4-FY2023 | Q3-FY2023 | Q2-FY2023 | Q1-FY2023 | Q4-FY2022 | Q3-FY2022 | Q2-FY2022 | Q1-FY2022 | Q4-FY2021 | Q3-FY2021 | Q2-FY2021 | Q1-FY2021 | Q4-FY2020 | Q3-FY2020 | Q2-FY2020 | Q1-FY2020 | Q4-FY2019 | Q3-FY2019 | Q2-FY2019 | Q1-FY2019 | Q4-FY2018 | Q3-FY2018 | Q2-FY2018 | Q1-FY2018 | Q4-FY2017 | Q3-FY2017 | Q2-FY2017 | Q1-FY2017 | Q4-FY2016 | Q3-FY2016 | Q2-FY2016 | Q1-FY2016 | Q4-FY2015 | Q3-FY2015 | Q2-FY2015 | Q1-FY2015 | Q4-FY2014 | Q3-FY2014 | Q2-FY2014 | Q1-FY2014 | |
| Operating Cash Flow | 3,867,000,000$ | 3,460,000,000$ | 2,748,000,000$ | 3,260,000,000$ | 2,958,000,000$ | 2,999,000,000$ | 731,000,000$ | 4,651,000,000$ | 3,725,000,000$ | 1,541,000,000$ | 3,192,000,000$ | 2,610,000,000$ | 2,506,000,000$ | 1,227,000,000$ | 401,000,000$ | 3,258,000,000$ | 2,940,000,000$ | 3,333,000,000$ | 38,000,000$ | 2,647,000,000$ | 4,242,000,000$ | 1,898,000,000$ | 619,000,000$ | 2,102,000,000$ | 2,293,000,000$ | 2,105,000,000$ | (219,000,000$) | 2,177,000,000$ | 1,229,000,000$ | 900,000,000$ | 1,128,000,000$ | 842,000,000$ | 1,490,000,000$ | 713,000,000$ | 939,000,000$ | ||||||||||||||
| Investing Cash Flow | (1,968,000,000$) | (1,336,000,000$) | (1,022,000,000$) | (985,000,000$) | (1,703,000,000$) | (954,000,000$) | (1,386,000,000$) | (366,000,000$) | (1,825,000,000$) | (1,282,000,000$) | (808,000,000$) | (1,057,000,000$) | (1,487,000,000$) | (1,035,000,000$) | (481,000,000$) | (912,000,000$) | (1,155,000,000$) | (1,343,000,000$) | (355,000,000$) | (682,000,000$) | (941,000,000$) | (1,850,000,000$) | (470,000,000$) | (630,000,000$) | (920,000,000$) | (774,000,000$) | (434,000,000$) | (737,000,000$) | (595,000,000$) | (527,000,000$) | (653,000,000$) | (606,000,000$) | (596,000,000$) | (65,000,000$) | (826,000,000$) | ||||||||||||||
| Purchases of Property and Equipment | 1,966,000,000$ | 1,131,000,000$ | 1,137,000,000$ | 1,264,000,000$ | 1,577,000,000$ | 1,062,000,000$ | 1,031,000,000$ | 1,040,000,000$ | 1,556,000,000$ | 820,000,000$ | 890,000,000$ | 1,057,000,000$ | 1,259,000,000$ | 854,000,000$ | 723,000,000$ | 1,055,000,000$ | 1,094,000,000$ | 1,028,000,000$ | 573,000,000$ | 893,000,000$ | 852,000,000$ | 698,000,000$ | 545,000,000$ | 715,000,000$ | 1,009,000,000$ | 672,000,000$ | 587,000,000$ | 730,000,000$ | 1,056,000,000$ | 585,000,000$ | 508,000,000$ | 820,000,000$ | 779,000,000$ | 540,000,000$ | 516,000,000$ | 667,000,000$ | 849,000,000$ | 461,000,000$ | 624,000,000$ | 715,000,000$ | 805,000,000$ | 421,000,000$ | 612,000,000$ | 555,000,000$ | 567,000,000$ | 405,000,000$ | 447,000,000$ | 574,000,000$ | |
| Financing Cash Flow | (1,593,000,000$) | (748,000,000$) | (241,000,000$) | (1,193,000,000$) | (1,816,000,000$) | (698,000,000$) | (7,276,000,000$) | (974,000,000$) | (664,000,000$) | (735,000,000$) | (352,000,000$) | (863,000,000$) | (1,940,000,000$) | (676,000,000$) | (828,000,000$) | (839,000,000$) | (719,000,000$) | (419,000,000$) | (4,650,000,000$) | (700,000,000$) | (1,918,000,000$) | 2,999,000,000$ | (1,392,000,000$) | (836,000,000$) | (1,000,000$) | (397,000,000$) | (49,000,000$) | (700,000,000$) | (1,470,000,000$) | (265,000,000$) | (108,000,000$) | (244,000,000$) | (318,000,000$) | (153,000,000$) | (71,000,000$) | ||||||||||||||
| End Cash Position | 14,161,000,000$ | 13,836,000,000$ | 12,356,000,000$ | 10,907,000,000$ | 9,906,000,000$ | 10,404,000,000$ | 9,095,000,000$ | 17,011,000,000$ | 13,700,000,000$ | 12,493,000,000$ | 12,970,000,000$ | 10,856,000,000$ | 10,203,000,000$ | 11,193,000,000$ | 11,819,000,000$ | 12,751,000,000$ | 11,258,000,000$ | 10,226,000,000$ | 8,637,000,000$ | 13,590,000,000$ | 12,277,000,000$ | 10,826,000,000$ | 7,786,000,000$ | 9,027,000,000$ | 8,384,000,000$ | 7,013,000,000$ | 6,080,000,000$ | 6,778,000,000$ | 6,055,000,000$ | 5,877,000,000$ | 4,781,000,000$ | 5,689,000,000$ | 4,546,000,000$ | 4,538,000,000$ | 4,744,000,000$ | 4,805,000,000$ | 3,379,000,000$ | 4,884,000,000$ | 3,633,000,000$ | 5,054,000,000$ | 4,801,000,000$ | 5,063,000,000$ | 5,866,000,000$ | 5,969,000,000$ | 5,738,000,000$ | 5,736,000,000$ | 5,130,000,000$ | 4,699,000,000$ | |
| Exchange Rate Effect | 19,000,000$ | 104,000,000$ | (36,000,000$) | (81,000,000$) | 63,000,000$ | (38,000,000$) | (29,000,000$) | (1,000,000$) | 82,000,000$ | (37,000,000$) | (69,000,000$) | (24,000,000$) | (14,000,000$) | (34,000,000$) | |||||||||||||||||||||||||||||||||||
| Dividends Paid | 1,153,000,000$ | 515,000,000$ | 0$ | 515,000,000$ | 514,000,000$ | 515,000,000$ | 7,107,000,000$ | 905,000,000$ | 452,000,000$ | 399,000,000$ | 0$ | 400,000,000$ | 1,005,000,000$ | 351,000,000$ | 0$ | 350,000,000$ | 698,000,000$ | 310,000,000$ | 4,430,000,000$ | 310,000,000$ | 619,000,000$ | 287,000,000$ | 0$ | 573,000,000$ | 286,000,000$ | 251,000,000$ | 0$ | 501,000,000$ | 250,000,000$ | 219,000,000$ | 220,000,000$ | 0$ | 3,508,000,000$ | 198,000,000$ | 0$ | 198,000,000$ | 394,000,000$ | 176,000,000$ | 0$ | 351,000,000$ | 2,358,000,000$ | 2,358,000,000$ | 311,000,000$ | 136,000,000$ | |||||
| Unlevered Free Cash Flow | 1,901,000,000$ | 2,329,000,000$ | 1,611,000,000$ | 1,996,000,000$ | 1,381,000,000$ | 1,937,000,000$ | (300,000,000$) | 3,611,000,000$ | 2,169,000,000$ | 721,000,000$ | 2,302,000,000$ | 1,553,000,000$ | 1,247,000,000$ | 373,000,000$ | (322,000,000$) | 2,203,000,000$ | 1,846,000,000$ | 2,305,000,000$ | (535,000,000$) | 1,754,000,000$ | 3,390,000,000$ | 1,200,000,000$ | 74,000,000$ | 1,387,000,000$ | 1,284,000,000$ | 1,433,000,000$ | (806,000,000$) | 1,447,000,000$ | 808,000,000$ | 288,000,000$ | 573,000,000$ | 275,000,000$ | 1,085,000,000$ | 266,000,000$ | 365,000,000$ | ||||||||||||||