Borrowings - Notes Payable and Short-term Borrowings (Details) - USD ($) $ in Millions		Jul. 31, 2017	Oct. 31, 2016
Notes Payable and Short-Term Borrowings
Current portion of long-term debt		$ 1,221	$ 2,772
Amount outstanding	[1]	$ 2,069	$ 3,527
Weighted-Average Interest Rate, current portion		2.60%	1.70%
FS Commercial paper
Notes Payable and Short-Term Borrowings
Amount outstanding		$ 375	$ 326
Weighted-Average Interest Rate		0.00%	0.10%
Obligation related to notes payable to banks, lines of credit, uncommitted line of credit and other debt
Notes Payable and Short-Term Borrowings
Amount outstanding		$ 473	$ 429
Weighted-Average Interest Rate		2.30%	2.00%
Obligation related to notes payable to banks, lines of credit, uncommitted line of credit and other debt | Financial Services
Notes Payable and Short-Term Borrowings
Short term borrowings		$ 418	$ 381

[1] During the first quarter of fiscal 2017, the Company adopted ASU 2015-03, which simplifies the presentation of debt issuance costs by requiring debt issuance costs to be presented as a deduction from the corresponding debt liability rather than an asset that is amortized. The Company adopted the standard retrospectively for the prior period presented.