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INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES. (Tables)

12 Months Ended

Dec. 31, 2017

Information about Receivables, Revenues, and Services [Abstract]

Components of revenues from advisory services

Revenues from advisory services provided under agreements with the T. Rowe Price U.S. mutual funds and other investment products include:

(in millions)	2015				2016				2017
T. Rowe Price U.S. mutual funds
Stock and blended asset	$	2,241.9			$	2,228.1			$	2,570.9
Bond and money market	426.0				477.3				501.0
	2,667.9				2,705.4				3,071.9
Other investment products
Stock and blended asset	862.2				850.3				1,009.4
Bond, money market, and stable value	157.2				173.0				206.4
	1,019.4				1,023.3				1,215.8
Total	$	3,687.3			$	3,728.7			$	4,287.7

Components of assets under management

The following table summarizes the assets under management on which we earned advisory fees.

(in billions)	Average during												As of December 31,
	2015				2016				2017				2016				2017
T. Rowe Price U.S. mutual funds
Stock and blended asset	$	387.8			$	386.1			$	447.5			$	401.3			$	480.5
Bond and money market	105.8				109.4				121.0				112.9				125.8
	493.6				495.5				568.5				514.2				606.3
Other investment products
Stock and blended asset	210.3				211.1				256.4				220.8				291.9
Bond, money market, and stable value	64.0				71.6				84.1				75.8				92.9
	274.3				282.7				340.5				296.6				384.8
Total	$	767.9			$	778.2			$	909.0			$	810.8			$	991.1

Components of other fees

The following table summarizes the other fees we earned from the T. Rowe Price U.S. mutual funds.

(in millions)	2015				2016				2017
Administrative fees	$	292.8			$	277.3			$	283.1
Distribution and servicing fees	$	151.5			$	141.7			$	147.0

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Tabular disclosure of the components of average assets under management and period end assets under management. Assets under management represents the market value of assets an investment adviser manages on behalf of investors and is the basis for determining investment advisory fee revenue.

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Tabular disclosure of the components of revenue recognized in the period for schedule-based fees earned for management of mutual funds based on average daily net assets and other investment management and advisory fees earned on other client portfolios based on asset valuations.

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