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Investment Components (Detail) - USD ($) $ in Millions | Sep. 30, 2022 | Jun. 30, 2022
--- | --- | ---
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | $ 104,013 |
Debt investments, Recorded Basis |  | 98,860 |
Derivative, net |  | 286 | $ 226
Cash and cash equivalents |  | 22,884 | 13,931
Short-term Investments |  | 84,378 | 90,826
Equity Investments |  | 6,839 | 6,891
Cash, cash equivalents, and investments |  | 114,101 | 111,648
Equity investments |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 7,986 | 8,025
Cash and cash equivalents |  | 1,147 | 1,134
Short-term Investments |  | 0 | 0
Equity Investments |  | 6,839 | 6,891
Equity investments | Other |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 6,370 | 6,435
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 0 | 0
Equity Investments |  | 6,370 | 6,435
Equity investments | Level 1 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 1,616 | 1,590
Cash and cash equivalents |  | 1,147 | 1,134
Short-term Investments |  | 0 | 0
Equity Investments |  | 469 | 456
Cash |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Cash |  | 7,237 | 8,258
Cash and cash equivalents |  | 7,237 | 8,258
Short-term Investments |  | 0 | 0
Equity Investments |  | 0 | 0
Derivatives, net |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Derivative, net | [1] | 18 | 8
Cash and cash equivalents | [1] | 0 | 0
Short-term Investments | [1] | 18 | 8
Equity Investments | [1] | 0 | 0
Debt Securities |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 104,013 | 98,118
Debt investments, Unrealized Gains |  | 23 | 53
Debt investments, Unrealized Losses |  | (5,176) | (2,814)
Debt investments, Recorded Basis |  | 98,860 | 95,357
Cash and cash equivalents |  | 14,500 | 4,539
Short-term Investments |  | 84,360 | 90,818
Equity Investments |  | 0 | 0
Debt Securities | Commercial Paper | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 6,286 | 2,500
Debt investments, Unrealized Gains |  | 2 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 6,288 | 2,500
Cash and cash equivalents |  | 5,662 | 2,498
Short-term Investments |  | 626 | 2
Equity Investments |  | 0 | 0
Debt Securities | Certificates of deposit | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 2,570 | 2,071
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 2,570 | 2,071
Cash and cash equivalents |  | 2,531 | 2,032
Short-term Investments |  | 39 | 39
Equity Investments |  | 0 | 0
Debt Securities | U.S. government securities | Level 1 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 76,079 | 79,696
Debt investments, Unrealized Gains |  | 7 | 29
Debt investments, Unrealized Losses |  | (4,232) | (2,178)
Debt investments, Recorded Basis |  | 71,854 | 77,547
Cash and cash equivalents |  | 1,955 | 9
Short-term Investments |  | 69,899 | 77,538
Equity Investments |  | 0 | 0
Debt Securities | U.S. agency securities | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 5,815 | 419
Debt investments, Unrealized Gains |  | 5 | 0
Debt investments, Unrealized Losses |  | (9) | (9)
Debt investments, Recorded Basis |  | 5,811 | 410
Cash and cash equivalents |  | 4,352 | 0
Short-term Investments |  | 1,459 | 410
Equity Investments |  | 0 | 0
Debt Securities | Foreign government bonds | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 493 | 506
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | (36) | (24)
Debt investments, Recorded Basis |  | 457 | 482
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 457 | 482
Equity Investments |  | 0 | 0
Debt Securities | Mortgage- and asset-backed securities | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 845 | 727
Debt investments, Unrealized Gains |  | 0 | 1
Debt investments, Unrealized Losses |  | (45) | (30)
Debt investments, Recorded Basis |  | 800 | 698
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 800 | 698
Equity Investments |  | 0 | 0
Debt Securities | Corporate notes and bonds | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 11,373 | 11,661
Debt investments, Unrealized Gains |  | 1 | 4
Debt investments, Unrealized Losses |  | (825) | (554)
Debt investments, Recorded Basis |  | 10,549 | 11,111
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 10,549 | 11,111
Equity Investments |  | 0 | 0
Debt Securities | Corporate notes and bonds | Level 3 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 76 | 67
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 76 | 67
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 76 | 67
Equity Investments |  | 0 | 0
Debt Securities | Municipal securities | Level 2 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 372 | 368
Debt investments, Unrealized Gains |  | 8 | 19
Debt investments, Unrealized Losses |  | (22) | (13)
Debt investments, Recorded Basis |  | 358 | 374
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 358 | 374
Equity Investments |  | 0 | 0
Debt Securities | Municipal securities | Level 3 |  |  |
Cash Cash Equivalents And Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 104 | 103
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | (7) | (6)
Debt investments, Recorded Basis |  | 97 | 97
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 97 | 97
Equity Investments |  | $ 0 | $ 0
[1] | Refer to Note 5 – Derivatives for further information on the fair value of our derivative instruments.

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