Long-Term External Borrowings (Details) - USD ($) $ in Millions	Jan. 30, 2022	Oct. 31, 2021	Jan. 31, 2021
Long-Term Borrowings
Total senior debt	$ 20,623.1	$ 20,664.8	$ 19,549.3
Unamortized debt discount and debt issuance costs	(56.6)	(57.5)	(51.8)
Total	20,566.5	20,607.3	19,497.5
Medium-term notes
Long-Term Borrowings
Total senior debt	20,614.7	20,649.2	19,510.7
Principal amount	20,541.0	20,378.2	18,949.6
Other notes
Long-Term Borrowings
Total senior debt	$ 8.4	$ 15.6	$ 38.6