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Investment Components (Detail) - USD ($) $ in Millions | Mar. 31, 2026 | Jun. 30, 2025
--- | --- | ---
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | $ 75,718 |
Debt investments, Recorded Basis |  | 74,750 |
Derivative, net |  | 752 | $ 500
Cash and cash equivalents |  | 32,105 | 30,242
Short-term Investments |  | 46,167 | 64,323
Equity and other investments |  | 33,683 | 15,405
Cash, cash equivalents, and investments |  | 111,955 | 109,970
Equity Securities |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 24,430 | 13,718
Cash and cash equivalents |  | 1,093 | 1,045
Short-term Investments |  | 0 | 0
Equity and other investments |  | 23,337 | 12,673
Equity Securities | Other |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 20,519 | 9,141
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 0 | 0
Equity and other investments |  | 20,519 | 9,141
Equity Securities | Level 1 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 3,911 | 4,577
Cash and cash equivalents |  | 1,093 | 1,045
Short-term Investments |  | 0 | 0
Equity and other investments |  | 2,818 | 3,532
Cash |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Cash |  | 12,731 | 11,711
Cash and cash equivalents |  | 12,731 | 11,711
Short-term Investments |  | 0 | 0
Equity and other investments |  | 0 | 0
Derivatives, net |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Derivative, net | [1] | 44 | 282
Cash and cash equivalents | [1] | 0 | 0
Short-term Investments | [1] | 44 | 10
Equity and other investments | [1] | 0 | 272
Debt Securities |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 75,718 | 85,589
Debt investments, Unrealized Gains |  | 231 | 295
Debt investments, Unrealized Losses |  | (1,199) | (1,625)
Debt investments, Recorded Basis |  | 74,750 | 84,259
Cash and cash equivalents |  | 18,281 | 17,486
Short-term Investments |  | 46,123 | 64,313
Equity and other investments |  | 10,346 | 2,460
Debt Securities | Commercial Paper | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 5,544 | 10,880
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 5,544 | 10,880
Cash and cash equivalents |  | 5,543 | 9,939
Short-term Investments |  | 1 | 941
Equity and other investments |  | 0 | 0
Debt Securities | Certificates of deposit | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 1,394 | 2,653
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 1,394 | 2,653
Cash and cash equivalents |  | 1,350 | 2,309
Short-term Investments |  | 44 | 344
Equity and other investments |  | 0 | 0
Debt Securities | U.S. government securities | Level 1 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 50,821 | 52,878
Debt investments, Unrealized Gains |  | 25 | 71
Debt investments, Unrealized Losses |  | (1,078) | (1,462)
Debt investments, Recorded Basis |  | 49,768 | 51,487
Cash and cash equivalents |  | 8,923 | 4,742
Short-term Investments |  | 32,119 | 46,745
Equity and other investments |  | 8,726 | 0
Debt Securities | U.S. agency securities | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 3,215 | 2,686
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 3,215 | 2,686
Cash and cash equivalents |  | 2,465 | 496
Short-term Investments |  | 750 | 2,190
Equity and other investments |  | 0 | 0
Debt Securities | Foreign government bonds | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 225 | 349
Debt investments, Unrealized Gains |  | 13 | 24
Debt investments, Unrealized Losses |  | (5) | (9)
Debt investments, Recorded Basis |  | 233 | 364
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 233 | 364
Equity and other investments |  | 0 | 0
Debt Securities | Mortgage- and asset-backed securities | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 2,010 | 2,558
Debt investments, Unrealized Gains |  | 6 | 10
Debt investments, Unrealized Losses |  | (23) | (27)
Debt investments, Recorded Basis |  | 1,993 | 2,541
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 1,993 | 2,541
Equity and other investments |  | 0 | 0
Debt Securities | Corporate notes and bonds | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 10,652 | 10,763
Debt investments, Unrealized Gains |  | 66 | 124
Debt investments, Unrealized Losses |  | (73) | (101)
Debt investments, Recorded Basis |  | 10,645 | 10,786
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 10,645 | 10,786
Equity and other investments |  | 0 | 0
Debt Securities | Corporate notes and bonds | Level 3 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 1,601 | 2,511
Debt investments, Unrealized Gains |  | 120 | 65
Debt investments, Unrealized Losses |  | 0 | (5)
Debt investments, Recorded Basis |  | 1,721 | 2,571
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 101 | 111
Equity and other investments |  | 1,620 | 2,460
Debt Securities | Municipal securities | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 152 | 207
Debt investments, Unrealized Gains |  | 1 | 1
Debt investments, Unrealized Losses |  | (6) | (7)
Debt investments, Recorded Basis |  | 147 | 201
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 147 | 201
Equity and other investments |  | 0 | 0
Debt Securities | Municipal securities | Level 3 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 104 | 104
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | (14) | (14)
Debt investments, Recorded Basis |  | 90 | 90
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 90 | 90
Equity and other investments |  | $ 0 | $ 0
[1] | Refer to Note 5 – Derivatives for further information on the fair value of our derivative instruments.

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