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Borrowings (Details 3) | Sep. 19, 2018 USD ($) | Sep. 20, 2017 USD ($) | Apr. 28, 2017 USD ($) | Nov. 01, 2015 USD ($) extension_term | Oct. 31, 2018 USD ($) commercial_paper_program | Sep. 30, 2018 | Jun. 29, 2018 USD ($) | Oct. 31, 2017 USD ($) | Dec. 30, 2016 USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Debt instruments |  |  |  |  |  |  |  |  |
Face amount of debt instrument |  |  |  |  |  |  |  | $ 0 | $ 14,600,000,000
Interest rate |  |  |  |  |  |  |  | 0.00% |
Fair value adjustment related to hedged debt |  |  |  |  | $ 353,000,000 |  |  | $ 142,000,000 |
Discount on debt issuance |  |  |  |  | 9,000,000 |  |  |  |
Aggregate future maturities of debt outstanding including capital lease obligations |  |  |  |  |  |  |  |  |
2019 |  |  |  |  | 1,201,000,000 |  |  |  |
2020 |  |  |  |  | 3,021,000,000 |  |  |  |
2021 |  |  |  |  | 1,344,000,000 |  |  |  |
2022 |  |  |  |  | 1,363,000,000 |  |  |  |
2023 |  |  |  |  | 16,000,000 |  |  |  |
Thereafter |  |  |  |  | 4,791,000,000 |  |  |  |
Total |  |  |  |  | 11,736,000,000 |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Interest rate swaps value |  |  |  |  | 6,900,000,000 |  |  |  |
Unsecured revolving credit facility |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Amount available under credit facility |  |  |  | $ 4,000,000,000.00 |  |  |  |  |
Term of credit facility |  |  |  | 5 years |  |  |  |  |
Number of extension terms | extension_term |  |  |  | 2 |  |  |  |  |
Extension term |  |  |  | 1 year |  |  |  |  |
Borrowings outstanding |  |  |  |  | 0 |  |  | 0 |
FS Commercial paper |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Maximum approved |  |  |  |  | $ 4,000,000,000.0 |  |  |  |
Number of commercial paper programs | commercial_paper_program |  |  |  |  | 2 |  |  |  |
Maximum borrowing capacity under credit facility |  |  |  |  | $ 4,000,000,000.00 |  |  |  |
Amount outstanding |  |  |  |  | 0 |  |  | 0 |
FS Commercial paper | U.S. program |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Maximum borrowing capacity under credit facility |  |  |  |  | 4,000,000,000.00 |  |  |  |
FS Commercial paper | Euro program |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Maximum borrowing capacity under credit facility |  |  |  |  | 3,000,000,000.00 |  |  |  |
Hewlett Packard Enterprise | FS Commercial paper | Euro program |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Additional authorization |  |  |  |  | 500,000,000 |  |  |  |
Amount outstanding |  |  |  |  | 392,000,000 |  |  | 401,000,000 |
Hewlett-Packard International Bank PLC | FS Commercial paper | Euro Commercial Paper/Certificate of Deposit Programme |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Maximum borrowing capacity under credit facility |  |  |  |  | $ 500,000,000 |  |  |  |
Hewlett Packard Enterprise Company |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Dividends |  |  | $ 3,000,000,000 |  |  |  |  |  |
New Registered Notes Due 2019 | Notes Payable to Banks |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Face amount of debt instrument |  | $ 1,100,000,000.0 |  |  |  |  |  |  |
Interest rate |  | 2.10% |  |  |  |  |  |  |
2.450% Notes Due October 5, 2017 | Notes Payable to Banks |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Interest rate |  | 2.45% | 2.45% |  |  |  |  |  |
Debt repaid |  | $ 750,000,000 |  |  |  |  |  |  |
Amount of debt extinguished |  |  | $ 1,500,000,000 |  |  |  |  |  |
Redemption price |  |  | $ 1,500,000,000 |  |  |  |  |  |
Floating Rate Notes Due October 5, 2017 | Notes Payable to Banks |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Debt repaid |  | $ 350,000,000 |  |  |  |  |  |  |
New Notes Due October 5, 2021 | Notes Payable to Banks |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Face amount of debt instrument | $ 1,300,000,000 |  |  |  |  |  |  |  |
New Floating Rate Notes Due October 5, 2021 | Senior Notes |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Face amount of debt instrument | $ 800,000,000 |  |  |  |  |  |  |  |
Spread on reference interest rate (as a percent) | 0.72% |  |  |  |  |  |  |  |
New Fixed Rate Notes Due October 5, 2021 | Notes Payable to Banks |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Face amount of debt instrument | $ 500,000,000 |  |  |  |  |  |  |  |
Interest rate | 3.50% |  |  |  |  |  |  |  |
Fixed 2.85% Notes Due October 2018 | Notes Payable to Banks |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  | 2.85% |  |  |
Debt repaid | $ 1,050,000,000 |  |  |  |  |  |  |  |
Floating Rate Notes Due October 2018 | Senior Notes |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Debt repaid | $ 250,000,000 |  |  |  |  |  |  |  |
$2,650 issued at discount to par at a price of 99.872% in October 2015 at 2.85%, due October 5, 2018, interest payable semi-annually on April 5 and October 5 of each year | Senior Notes |  |  |  |  |  |  |  |  |
Debt instruments |  |  |  |  |  |  |  |  |
Face amount of debt instrument |  |  |  |  |  |  |  | $ 2,650,000,000 |
Repurchased amount of debt |  |  |  |  |  |  | $ 1,600,000,000 |  |

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