XML 49 R81.htm IDEA: XBRL DOCUMENT v3.20.1
Commitments and Contingencies - Narrative (Details)
$ in Millions
Jan. 31, 2020
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
Non-cancelable commitments $ 1,200
Non-cancelable commitments due 2020 723
Non-cancelable commitments due 2021 367
Non-cancelable commitments due 2023 73
Non-cancelable commitments due 2024 11
Non-cancelable commitments thereafter 0
Standby and documentary letters of credit outstanding $ 61