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Investment Components (Detail) - USD ($) $ in Millions | Mar. 31, 2022 | Jun. 30, 2021
--- | --- | ---
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | $ 97,048 |
Debt investments, Recorded Basis |  | 95,970 |
Derivative, net |  | 155 | $ 258
Cash and cash equivalents |  | 12,498 | 14,224
Short-term Investments |  | 92,195 | 116,110
Equity Investments |  | 6,907 | 5,984
Cash, cash equivalents, and investments |  | 111,600 | 136,318
Equity investments |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 8,141 | 6,960
Cash and cash equivalents |  | 1,234 | 976
Short-term Investments |  | 0 | 0
Equity Investments |  | 6,907 | 5,984
Equity investments | Other |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 6,284 | 5,378
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 0 | 0
Equity Investments |  | 6,284 | 5,378
Equity investments | Level 1 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Equity investments, Recorded Basis |  | 1,857 | 1,582
Cash and cash equivalents |  | 1,234 | 976
Short-term Investments |  | 0 | 0
Equity Investments |  | 623 | 606
Cash |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Cash |  | 7,456 | 7,272
Cash and cash equivalents |  | 7,456 | 7,272
Short-term Investments |  | 0 | 0
Equity Investments |  | 0 | 0
Derivatives, net |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Derivative, net | [1] | 33 | 78
Cash and cash equivalents | [1] | 0 | 0
Short-term Investments | [1] | 33 | 78
Equity Investments | [1] | 0 | 0
Debt investments |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 97,048 | 117,966
Debt investments, Unrealized Gains |  | 417 | 4,177
Debt investments, Unrealized Losses |  | (1,495) | (135)
Debt investments, Recorded Basis |  | 95,970 | 122,008
Cash and cash equivalents |  | 3,808 | 5,976
Short-term Investments |  | 92,162 | 116,032
Equity Investments |  | 0 | 0
Debt investments | Commercial Paper | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 883 | 4,316
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 883 | 4,316
Cash and cash equivalents |  | 802 | 1,331
Short-term Investments |  | 81 | 2,985
Equity Investments |  | 0 | 0
Debt investments | Certificates of deposit | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 3,045 | 3,615
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 3,045 | 3,615
Cash and cash equivalents |  | 3,003 | 2,920
Short-term Investments |  | 42 | 695
Equity Investments |  | 0 | 0
Debt investments | U.S. government securities | Level 1 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 79,211 | 90,664
Debt investments, Unrealized Gains |  | 347 | 3,832
Debt investments, Unrealized Losses |  | (1,174) | (111)
Debt investments, Recorded Basis |  | 78,384 | 94,385
Cash and cash equivalents |  | 3 | 1,500
Short-term Investments |  | 78,381 | 92,885
Equity Investments |  | 0 | 0
Debt investments | U.S. agency securities | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 417 | 807
Debt investments, Unrealized Gains |  | 0 | 2
Debt investments, Unrealized Losses |  | (6) | 0
Debt investments, Recorded Basis |  | 411 | 809
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 411 | 809
Equity Investments |  | 0 | 0
Debt investments | Foreign government bonds | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 508 | 6,213
Debt investments, Unrealized Gains |  | 3 | 9
Debt investments, Unrealized Losses |  | (10) | (2)
Debt investments, Recorded Basis |  | 501 | 6,220
Cash and cash equivalents |  | 0 | 225
Short-term Investments |  | 501 | 5,995
Equity Investments |  | 0 | 0
Debt investments | Mortgage- and asset-backed securities | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 602 | 3,442
Debt investments, Unrealized Gains |  | 2 | 22
Debt investments, Unrealized Losses |  | (14) | (6)
Debt investments, Recorded Basis |  | 590 | 3,458
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 590 | 3,458
Equity Investments |  | 0 | 0
Debt investments | Corporate notes and bonds | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 11,910 | 8,443
Debt investments, Unrealized Gains |  | 31 | 249
Debt investments, Unrealized Losses |  | (277) | (9)
Debt investments, Recorded Basis |  | 11,664 | 8,683
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 11,664 | 8,683
Equity Investments |  | 0 | 0
Debt investments | Corporate notes and bonds | Level 3 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 45 | 63
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | 0 | 0
Debt investments, Recorded Basis |  | 45 | 63
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 45 | 63
Equity Investments |  | 0 | 0
Debt investments | Municipal securities | Level 2 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 324 | 308
Debt investments, Unrealized Gains |  | 34 | 63
Debt investments, Unrealized Losses |  | (7) | 0
Debt investments, Recorded Basis |  | 351 | 371
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 351 | 371
Equity Investments |  | 0 | 0
Debt investments | Municipal securities | Level 3 |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |
Debt investments, Adjusted Cost Basis |  | 103 | 95
Debt investments, Unrealized Gains |  | 0 | 0
Debt investments, Unrealized Losses |  | (7) | (7)
Debt investments, Recorded Basis |  | 96 | 88
Cash and cash equivalents |  | 0 | 0
Short-term Investments |  | 96 | 88
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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