| USD ($) $ in Millions | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 | Mar 31, 2022 | Dec 31, 2021 | Sep 30, 2021 | Mar 31, 2021 | Dec 31, 2020 | Sep 30, 2020 | Mar 31, 2020 | Dec 31, 2019 | Sep 30, 2019 | Mar 31, 2019 | Dec 31, 2018 | Sep 30, 2018 | Mar 31, 2018 | Dec 31, 2017 | Sep 30, 2017 | Mar 31, 2017 | Dec 31, 2016 | Sep 30, 2016 | Mar 31, 2016 | Dec 31, 2015 | Sep 30, 2015 | Mar 31, 2015 | Dec 31, 2014 | Sep 30, 2014 | Mar 31, 2014 | Dec 31, 2013 | Sep 30, 2013 | Mar 31, 2013 | Dec 31, 2012 | Sep 30, 2012 | Mar 31, 2012 | Sep 30, 2011 | Mar 31, 2011 | Dec 31, 2010 | Sep 30, 2010 | Mar 31, 2010 | Dec 31, 2009 | Sep 30, 2009 |
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Current assets: | ||||||||||||||||||||||||||||||||||||||||||||||||||
Cash and cash equivalents | $ 32,105 | $ 24,296 | $ 28,849 | $ 28,828 | $ 17,482 | $ 20,840 | $ 19,634 | $ 17,305 | $ 80,452 | $ 26,562 | $ 15,646 | $ 22,884 | ||||||||||||||||||||||||||||||||||||||
Short-term investments | 46,167 | 65,166 | 73,163 | 50,790 | 54,073 | 57,588 | 60,387 | 63,712 | 63,499 | 77,865 | 83,862 | 84,378 | ||||||||||||||||||||||||||||||||||||||
Total cash, cash equivalents, and short-term investments | 78,272 | 89,462 | 102,012 | 79,618 | 71,555 | 78,428 | 80,021 | 81,017 | 143,951 | 104,427 | 99,508 | 107,262 | ||||||||||||||||||||||||||||||||||||||
Accounts receivable, net of allowance for doubtful accounts of $794 and $944 | 60,041 | 56,535 | 52,894 | 51,700 | 48,188 | 44,148 | 44,029 | 42,831 | 36,953 | 37,420 | 35,833 | 31,279 | ||||||||||||||||||||||||||||||||||||||
Inventories | 1,219 | 1,059 | 1,130 | 848 | 909 | 1,626 | 1,304 | 1,615 | 3,000 | 2,877 | 2,980 | 4,268 | ||||||||||||||||||||||||||||||||||||||
Deferred income taxes | - | - | - | - | - | - | - | - | - | - | - | - | ||||||||||||||||||||||||||||||||||||||
Other current assets | 35,797 | 33,134 | 33,030 | 24,478 | 26,428 | 25,724 | 21,826 | 21,930 | 23,682 | 19,165 | 19,502 | 18,003 | ||||||||||||||||||||||||||||||||||||||
Total current assets | 175,329 | 180,190 | 189,066 | 156,644 | 147,080 | 149,926 | 147,180 | 147,393 | 207,586 | 163,889 | 157,823 | 160,812 | ||||||||||||||||||||||||||||||||||||||
Property and equipment, net of accumulated depreciation of $111,723 and $93,653 | 283,228 | 261,126 | 230,861 | 183,939 | 166,902 | 152,863 | 121,375 | 112,308 | 102,502 | 88,132 | 82,755 | 77,037 | ||||||||||||||||||||||||||||||||||||||
Operating lease right-of-use assets | 24,403 | 25,103 | 24,791 | 24,475 | 22,816 | 20,528 | 17,371 | 16,398 | 15,435 | 13,879 | 13,624 | 13,347 | ||||||||||||||||||||||||||||||||||||||
Equity and other investments | 33,683 | 21,202 | 11,465 | 16,035 | 15,581 | 15,778 | 14,807 | 13,367 | 11,423 | 9,415 | 7,097 | 6,839 | ||||||||||||||||||||||||||||||||||||||
Goodwill | 119,661 | 119,622 | 119,497 | 119,329 | 119,191 | 119,374 | 119,163 | 118,931 | 67,790 | 67,940 | 67,905 | 67,459 | ||||||||||||||||||||||||||||||||||||||
Intangible assets, net | 19,325 | 20,289 | 21,236 | 23,968 | 25,385 | 26,751 | 28,828 | 29,896 | 8,895 | 9,879 | 10,354 | 10,808 | ||||||||||||||||||||||||||||||||||||||
Deferred income taxes | - | - | - | - | - | - | - | - | - | - | - | - | ||||||||||||||||||||||||||||||||||||||
Other long-term assets | 38,599 | 37,770 | 39,435 | 38,234 | 36,943 | 37,793 | 35,551 | 32,265 | 32,154 | 26,954 | 24,994 | 23,482 | ||||||||||||||||||||||||||||||||||||||
Total assets | 694,228 | 665,302 | 636,351 | 562,624 | 533,898 | 523,013 | 484,275 | 470,558 | 445,785 | 380,088 | 364,552 | 359,784 | ||||||||||||||||||||||||||||||||||||||
Liabilities and stockholders’ equity | ||||||||||||||||||||||||||||||||||||||||||||||||||
Current liabilities: | ||||||||||||||||||||||||||||||||||||||||||||||||||
Accounts payable | 37,513 | 37,328 | 32,580 | 26,250 | 22,608 | 22,768 | 18,087 | 17,695 | 19,307 | 15,305 | 15,354 | 16,609 | ||||||||||||||||||||||||||||||||||||||
Short-term debt | - | - | - | 0 | 0 | 0 | 20,535 | 27,041 | 25,808 | - | - | - | ||||||||||||||||||||||||||||||||||||||
Current portion of long-term debt | 8,839 | 4,837 | 7,832 | 2,999 | 5,248 | 2,249 | 2,249 | 2,250 | 3,748 | 6,245 | 3,997 | 3,248 | ||||||||||||||||||||||||||||||||||||||
Accrued compensation | 11,270 | 10,103 | 9,201 | 10,579 | 9,176 | 8,326 | 10,432 | 8,813 | 6,990 | 10,411 | 9,030 | 7,405 | ||||||||||||||||||||||||||||||||||||||
Short-term income taxes | 3,563 | 2,050 | 3,655 | 6,805 | 6,056 | 9,717 | 7,311 | 5,787 | 8,035 | 4,163 | 3,553 | 6,729 | ||||||||||||||||||||||||||||||||||||||
Short-term unearned revenue | 50,924 | 51,376 | 58,987 | 44,636 | 45,508 | 53,026 | 41,888 | 43,068 | 46,429 | 36,903 | 36,982 | 41,340 | ||||||||||||||||||||||||||||||||||||||
Securities lending payable | - | - | - | - | - | - | - | - | - | - | - | - | ||||||||||||||||||||||||||||||||||||||
Other current liabilities | 24,552 | 24,311 | 22,741 | 22,937 | 20,286 | 19,114 | 18,023 | 16,362 | 14,475 | 12,664 | 12,802 | 12,058 | ||||||||||||||||||||||||||||||||||||||
Total current liabilities | 136,661 | 130,005 | 134,996 | 114,206 | 108,882 | 115,200 | 118,525 | 121,016 | 124,792 | 85,691 | 81,718 | 87,389 | ||||||||||||||||||||||||||||||||||||||
Long-term debt | 31,423 | 35,425 | 35,376 | 39,882 | 39,722 | 42,868 | 42,658 | 44,928 | 41,946 | 41,965 | 44,119 | 45,374 | ||||||||||||||||||||||||||||||||||||||
Long-term income taxes | 27,941 | 27,256 | 26,569 | 25,061 | 24,389 | 24,452 | 26,786 | 25,890 | 22,983 | 25,000 | 24,169 | 23,712 | ||||||||||||||||||||||||||||||||||||||
Long-term unearned revenue | 2,753 | 2,668 | 2,546 | 2,840 | 2,537 | 2,663 | 2,945 | 2,966 | 2,759 | 2,698 | 2,644 | 2,549 | ||||||||||||||||||||||||||||||||||||||
Deferred income taxes | 2,899 | 2,876 | 2,852 | 2,522 | 2,513 | 2,581 | 2,469 | 2,548 | 470 | 302 | 289 | 223 | ||||||||||||||||||||||||||||||||||||||
Operating lease liabilities | 16,703 | 17,345 | 17,348 | 17,686 | 17,254 | 16,361 | 14,469 | 14,155 | 13,487 | 12,312 | 11,998 | 11,660 | ||||||||||||||||||||||||||||||||||||||
Other long-term liabilities | 61,481 | 58,852 | 53,588 | 38,536 | 35,906 | 31,165 | 23,271 | 20,787 | 18,634 | 17,437 | 16,479 | 15,311 | ||||||||||||||||||||||||||||||||||||||
Total liabilities | 279,861 | 274,427 | 273,275 | 240,733 | 231,203 | 235,290 | 231,123 | 232,290 | 225,071 | 185,405 | 181,416 | 186,218 | ||||||||||||||||||||||||||||||||||||||
Stockholders’ equity: | ||||||||||||||||||||||||||||||||||||||||||||||||||
Common stock and paid-in capital - shares authorized 24,000; outstanding 7,429 and 7,434 | 115,069 | 112,788 | 110,964 | 106,965 | 104,829 | 102,976 | 99,193 | 97,480 | 95,508 | 92,093 | 90,225 | 88,535 | ||||||||||||||||||||||||||||||||||||||
Retained earnings | 302,526 | 280,789 | 254,873 | 219,759 | 203,482 | 188,929 | 159,394 | 145,737 | 132,143 | 108,234 | 99,368 | 92,374 | ||||||||||||||||||||||||||||||||||||||
Accumulated other comprehensive loss | (3,228) | (2,702) | (2,761) | (4,833) | (5,616) | (4,182) | (5,435) | (4,949) | (6,937) | (5,644) | (6,457) | (7,343) | ||||||||||||||||||||||||||||||||||||||
Retained earnings (deficit), including accumulated other comprehensive income of $1,332and $1,863 | - | - | - | - | - | - | - | - | - | - | - | - | ||||||||||||||||||||||||||||||||||||||
Total stockholders’ equity | 414,367 | 390,875 | 363,076 | 321,891 | 302,695 | 287,723 | 253,152 | 238,268 | 220,714 | 194,683 | 183,136 | 173,566 | ||||||||||||||||||||||||||||||||||||||
Total liabilities and stockholders’ equity | $ 694,228 | $ 665,302 | $ 636,351 | $ 562,624 | $ 533,898 | $ 523,013 | $ 484,275 | $ 470,558 | $ 445,785 | $ 380,088 | $ 364,552 | $ 359,784 |