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Long-Term Obligations and Other Short-Term Borrowings Summary of Debt (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Jun. 30, 2018
--- | --- | ---
Debt Instrument [Line Items] |  |
Other obligations | $ 10 | $ 11
Total | 8,031 | 9,013
Less: current portion of long-term obligations and other short-term borrowings | 452 | 1,001
Long-term obligations, less current portion | 7,579 | 8,012
1.948% Notes due 2019 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 0 | 998
2.4% Notes due 2019 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 450 | 448
4.625% Notes due 2020 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 508 | 514
2.616% Notes due fiscal 2022 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 1,079 | 1,143
3.2% Notes due 2022 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 247 | 243
Floating Rate Notes due fiscal 2022 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 340 | 348
3.2% Notes due 2023 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 551 | 525
3.079% Notes due fiscal 2024 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 781 | 742
3.5% Notes due fiscal 2025 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 402 | 390
3.75% Notes due 2025 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 494 | 460
3.41% Notes due fiscal 2027 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 1,318 | 1,340
4.6% Notes due 2043 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 346 | 346
4.5% Notes due 2044 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 342 | 342
4.9% Notes due 2045 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 445 | 445
4.368% Notes due fiscal 2047 |  |
Debt Instrument [Line Items] |  |
Notes Payable | 594 | 594
7.0% Debentures due 2026 |  |
Debt Instrument [Line Items] |  |
Notes Payable | $ 124 | $ 124

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