Exhibit 23(b)





INDEPENDENT AUDITORS' CONSENT
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We consent to the incorporation by reference in this Registration Statement of
Merrill Lynch & Co., Inc. on Form S-8 related to the 2001 Deferred Compensation
Plan for a Select Group of Eligible Employees of our reports dated February 28,
2000 (each of which expressed an unqualified opinion and which report on the
consolidated financial statements included an explanatory paragraph for the
change in accounting method in 1998 for certain internal-use software
development costs to conform with Statement of Position 98-1), included or
incorporated by reference in the Annual Report on Form 10-K of Merrill Lynch &
Co., Inc. and subsidiaries for the year ended December 31, 1999.

/s/ Deloitte & Touche

New York, New York
August 31, 2000