T. Rowe Price (TROW) 10-Q 24 Oct 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	9 Months Ended
	Sep. 30, 2013	Oct. 22, 2013
Document and Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	30-Sep-13
Current Fiscal Year End Date	-19
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2013
Entity Registrant Name	PRICE T ROWE GROUP INC
Entity Incorporation, State Country Name	Maryland
Entity Tax Identification Number	522264646
Entity Address, Address Line One	100 East Pratt Street
Entity Address, City or Town	Baltimore
Entity Address, State or Province	Maryland
Entity Address, Postal Zip Code	21202
Entity Filer Category	Large Accelerated Filer
Entity Listing, Par Value Per Share (in dollars per share)	$0.20
Entity Common Stock, Shares Outstanding (shares)		260,907,929
Entity Central Index Key	1113169
Amendment Flag	FALSE

UNAUDITED_CONDENSED_CONSOLIDAT

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
ASSETS
Cash and cash equivalents	$1,693.30	$879.10
Accounts receivable and accrued revenue	365.6	353.9
Investments in sponsored funds	1,307.80	1,140.10
Debt securities held by savings bank subsidiary	125	136
Other investments	314.1	304.7
Property and equipment	567.5	561
Goodwill	665.7	665.7
Other assets	87.8	162.3
Total assets	5,126.80	4,202.80
Liabilities
Accounts payable and accrued expenses	97.3	89.7
Accrued compensation and related costs	312.7	90.8
Income taxes payable	43.3	21.5
Customer deposits at savings bank subsidiary	132.9	154.7
Total liabilities	586.2	356.7
Commitments and contingent liabilities
Stockholders’ equity
Preferred stock, undesignated, $.20 par value – authorized and unissued 20,000,000 shares
Common stock, $.20 par value - authorized 750,000,000; issued 257,018,000 shares in 2012 and 260,872,000 in 2013	52.2	51.4
Additional capital in excess of par value	824.8	631
Retained earnings	3,494.70	3,031.80
Accumulated other comprehensive income	168.9	131.9
Total stockholders’ equity	4,540.60	3,846.10
Total liabilities and stockholders’ equity	$5,126.80	$4,202.80

UNAUDITED_CONDENSED_CONSOLIDAT1

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Stockholders' equity
Preferred stock, par value (in dollars per share)	$0.20	$0.20
Preferred stock, shares authorized	20,000,000	20,000,000
Common stock, par value (in dollars per share)	$0.20	$0.20
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	260,872,000	257,018,000

UNAUDITED_CONDENSED_CONSOLIDAT2

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues
Investment advisory fees	$768.30	$661.40	$2,210.90	$1,914.40
Administrative fees	85.4	83.4	258.1	249
Distribution and servicing fees	30.5	24.4	84.8	70.3
Net revenue of savings bank subsidiary	0.2	0.5	0.6	1.5
Net revenues	884.4	769.7	2,554.40	2,235.20
Operating expenses
Compensation and related costs	291.3	263.8	858.7	786
Advertising and promotion	15.4	17.5	59.9	63.1
Distribution and servicing costs	30.5	24.4	84.8	70.3
Depreciation and amortization of property and equipment	22.1	20.6	65.5	59.6
Occupancy and facility costs	32.9	31	101	92.5
Other operating expenses	66.3	53.5	187.2	160.6
Total operating expenses	458.5	410.8	1,357.10	1,232.10
Net operating income	425.9	358.9	1,197.30	1,003.10
Non-operating investment income	11.6	41.4	31.3	53.9
Income before income taxes	437.5	400.3	1,228.60	1,057
Provision for income taxes	167.2	153	468.6	405.4
Net income	$270.30	$247.30	$760	$651.60
Earnings per share on common stock
Basic (in dollars per share)	$1.03	$0.97	$2.92	$2.56
Diluted (in dollars per share)	$1	$0.94	$2.83	$2.48
Dividends declared per share (in dollars per share)	$0.38	$0.34	$1.14	$1.02

UNAUDITED_CONDENSED_CONSOLIDAT3

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$270.30	$247.30	$760	$651.60
Net unrealized holding gains (losses) on:
Total net unrealized holding gains (losses) recognized in other comprehensive income	62.5	9.6	79.2	48.4
Currency translation adjustment	-12.2	-11.8	-17.3	-17.1
Total other comprehensive income (loss) before income taxes	50.3	-2.2	61.9	31.3
Net deferred tax benefits (income taxes)	-19.8	0.4	-24.9	-13.7
Total other comprehensive income (loss)	30.5	-1.8	37	17.6
Total comprehensive income	300.8	245.5	797	669.2
Investments in sponsored funds [Member]
Net unrealized holding gains (losses) on:
Net unrealized holding gains	62.4	40.3	92.2	81.1
Net gains realized on dispositions, determined using average cost	0	-31.2	-11.5	-33.7
Total net unrealized holding gains (losses) recognized in other comprehensive income	62.4	9.1	80.7	47.4
Debt securities held by savings bank subsidiary [Member]
Net unrealized holding gains (losses) on:
Total net unrealized holding gains (losses) recognized in other comprehensive income	0	0.4	-1.4	0.8
Proportionate share of securities held by UTI Asset Management Company Limited [Member]
Net unrealized holding gains (losses) on:
Total net unrealized holding gains (losses) recognized in other comprehensive income	$0.10	$0.10	($0.10)	$0.20

UNAUDITED_CONDENSED_CONSOLIDAT4

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities
Net income	$760	$651.60
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization of property and equipment	65.5	59.6
Stock-based compensation expense	81.3	77.3
Intangible asset amortization	0.3	0.3
Realized gains on dispositions of sponsored funds	-11.5	-33.7
Net losses on investments of consolidated sponsored investment portfolios	-1.1	-1.8
Change in securities held by consolidated sponsored investment portfolios	-25.7	-89.3
Other changes in assets and liabilities	289.5	197
Net cash provided by operating activities	1,158.30	861
Cash flows from investing activities
Investments in sponsored funds	-112.5	-342.2
Dispositions of sponsored funds	37	165.6
Investments in debt securities held by savings bank subsidiary	-26.8	-31.1
Proceeds from debt securities held by savings bank subsidiary	36	70.2
Additions to property and equipment	-74.6	-55.7
Other investing activity	2.3	-9
Net cash used in investing activities	-138.6	-202.2
Cash flows from financing activities
Repurchases of common stock	-14.1	-135.2
Common share issuances under stock-based compensation plans	101.2	52.3
Excess tax benefits from stock-based compensation plans	26.3	33.7
Dividends	-297.1	-259.7
Change in savings bank subsidiary deposits	-21.8	-12.8
Net cash used in financing activities	-205.5	-321.7
Cash and cash equivalents
Net change during period	814.2	337.1
At beginning of year	879.1	897.9
At end of period	$1,693.30	$1,235

UNAUDITED_CONDENSED_CONSOLIDAT5

UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)	Total	Common stock [Member]	Additional capital in excess of par value [Member]	Retained earnings [Member]	Accumulated other comprehensive income [Member]
In Millions, except Share data in Thousands, unless otherwise specified
Balances at Dec. 31, 2012	$3,846.10	$51.40	$631	$3,031.80	$131.90
Balances (shares) at Dec. 31, 2012	257,018
Net income	760			760
Other comprehensive income, net of tax	37				37
Dividends	-297			-297
Common stock-based compensation plans activity
Shares issued upon option exercises (shares)		2,988
Shares issued upon option exercises	101.2	0.6	100.6
Restricted shares issued, net of shares withheld for taxes (shares)		1,115
Restricted shares issued, net of shares withheld for taxes	-0.2	0.2	-0.4
Shares issued upon vesting of restricted stock units (shares)		21
Shares issued upon vesting of restricted stock units	-0.1	0	-0.1
Forfeiture of restricted awards (shares)		-70
Forfeiture of restricted awards	0	0	0
Net tax benefits	26.4		26.4
Stock-based compensation expense	81.3		81.3
Restricted stock units issued as dividend equivalents	0		0.1	-0.1
Common shares repurchased (shares)		-200
Common shares repurchased	-14.1	0	-14.1
Balances at Sep. 30, 2013	$4,540.60	$52.20	$824.80	$3,494.70	$168.90
Balances (shares) at Sep. 30, 2013	260,872

THE_COMPANY_AND_BASIS_OF_PREPA

THE COMPANY AND BASIS OF PREPARATION.	9 Months Ended
	Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The company and basis of preparation
	NOTE 1	– THE COMPANY AND BASIS OF PREPARATION.
	T. Rowe Price Group derives its consolidated revenues and net income primarily from investment advisory services that its subsidiaries provide to individual and institutional investors in the sponsored T. Rowe Price U.S. mutual funds and other investment portfolios, including separately managed accounts, subadvised funds, and other sponsored investment portfolios. We also provide our investment advisory clients with related administrative services, including distribution, mutual fund transfer agent, accounting and shareholder services; participant recordkeeping and transfer agent services for defined contribution retirement plans; brokerage; and trust services.
	Investment advisory revenues depend largely on the total value and composition of assets under our management. Accordingly, fluctuations in financial markets and in the composition of assets under management impact our revenues and results of operations.
	These unaudited condensed consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States, which require the use of estimates and reflect all adjustments that are, in the opinion of management, necessary to a fair statement of our results for the interim periods presented. All such adjustments are of a normal recurring nature. Actual results may vary from our estimates. Certain prior year items have been reclassed to conform to current year presentation.
	The unaudited interim financial information contained in these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements contained in our 2012 Annual Report.
	During the second quarter of 2013, we determined that we no longer had a controlling financial interest in certain of the sponsored investment portfolios that were consolidated at December 31, 2012. Accordingly, we deconsolidated the carrying value of their assets and liabilities, and recorded our remaining equity interest at its fair value. Given that our consolidated investment portfolios were carried at fair value, we did not recognize any gain or loss in our condensed consolidated statement of income upon deconsolidation. Our residual interest in these sponsored investment portfolios is accounted for under the equity method of accounting. The impact of the deconsolidation on our condensed consolidated balance sheet was immaterial.
	On January 1, 2013, we adopted new financial reporting guidance that requires the disclosure of information about significant items reclassified out of accumulated other comprehensive income, including the line item of our condensed consolidated income statements to which such items were reclassified. The required information could be presented either on the face of the financial statements or in the notes. We elected to present these disclosures in Note 10 to the financial statements.

INFORMATION_ABOUT_RECEIVABLES_

INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES.	9 Months Ended
	Sep. 30, 2013
Information about Receivables, Revenues, and Services [Abstract]
Information about receivables, revenues, and services
	NOTE 2	– INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES.
	Accounts receivable from our sponsored mutual funds for advisory fees and advisory-related administrative services aggregate $184.0 million at December 31, 2012, and $201.8 million at September 30, 2013.
	Revenues (in millions) from advisory services provided under agreements with our sponsored mutual funds and other investment clients include:
		Three months ended				Nine months ended
		9/30/12		9/30/13		9/30/12		9/30/13
	Sponsored mutual funds in the U.S.
	Stock and blended asset	$	368.1	$	452	$	1,059.60	$	1,276.30
	Bond and money market	90		89.3		258.7		275
		458.1		541.3		1,318.30		1,551.30
	Other portfolios
	Stock and blended asset	160.2		187.4		472.1		538.1
	Bond, money market, and stable value	43.1		39.6		124		121.5
		203.3		227		596.1		659.6
	Total	$	661.4	$	768.3	$	1,914.40	$	2,210.90
	The following table summarizes the various investment portfolios and assets under management (in billions) on which we earn advisory fees.
		Average during				Average during
		the third quarter of				the first nine months of
		2012		2013		2012		2013
	Sponsored mutual funds in the U.S.
	Stock and blended asset	$	246.4	$	305.4	$	237.8	$	289.5
	Bond and money market	86.1		90.8		83.3		91.8
		332.5		396.2		321.1		381.3
	Other portfolios
	Stock and blended asset	159.2		182.5		156.9		177.3
	Bond, money market, and stable value	66.1		57.6		64.2		62.3
		225.3		240.1		221.1		239.6
	Total	$	557.8	$	636.3	$	542.2	$	620.9
		As of
		12/31/12		9/30/13
	Sponsored mutual funds in the U.S.
	Stock and blended asset	$	256.9	$	312.4
	Bond and money market	90		91.4
		346.9		403.8
	Other portfolios
	Stock and blended asset	164.2		181.4
	Bond, money market, and stable value	65.7		62
		229.9		243.4
	Total	$	576.8	$	647.2
	Investors that we serve are primarily domiciled in the U.S.; investment advisory clients outside the U.S. account for about 7% of our assets under management at September 30, 2013.
	Fees for advisory-related administrative services provided to our sponsored mutual funds in the U.S. during the first nine months of the year were $193.6 million in 2012 and $199.1 million in 2013. Fees for these services during the third quarter were $64.8 million in 2012 and $65.3 million in 2013. Distribution and other servicing fees earned from certain classes of our sponsored mutual funds in the U.S. during the first nine months of the year were $70.3 million in 2012 and $84.8 million in 2013. Such fees during the third quarter were $24.4 million in 2012 and $30.5 million in 2013.

INVESTMENTS_IN_SPONSORED_FUNDS

INVESTMENTS IN SPONSORED FUNDS - AVAILABLE-FOR-SALE. (Investments in sponsored funds [Member])	9 Months Ended
	Sep. 30, 2013
Investments in sponsored funds [Member]
Investments in debt and marketable equity securities
Investments in sponsored funds - available for sale
	NOTE 3	– INVESTMENTS IN SPONSORED FUNDS - AVAILABLE-FOR-SALE.
	We make investments in our sponsored funds for general corporate investment purposes or to provide seed capital for newly formed funds. These sponsored funds (in millions) are voting interest entities and include:
		Aggregate		Unrealized holding					Aggregate
		cost		gains		losses			fair value
	31-Dec-12
	Stock and blended asset funds	$	336.9	$	178.9	$	—		$	515.8
	Bond funds	570.9		53.4		—			624.3
	Total	$	907.8	$	232.3	$	—		$	1,140.10
	September 30, 2013
	Stock and blended asset funds	$	348.8	$	266.3	$	—		$	615.1
	Bond funds	646		49.7		(3.0		)	692.7
	Total	$	994.8	$	316	$	(3.0	)	$	1,307.80
	The unrealized holding losses at September 30, 2013, are attributable to four fund holdings with an aggregate fair value of $155.8 million and are considered temporary.

SAVINGS_BANK_SUBSIDIARY

SAVINGS BANK SUBSIDIARY.	9 Months Ended
	Sep. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]
Savings bank subsidiary
	NOTE 4	– SAVINGS BANK SUBSIDIARY.
	On May 23, 2013, we entered into an agreement to sell 100% of the capital stock of our savings bank subsidiary to Jacob M. Safra for cash equal to the bank's net book value on the closing date plus $500,000. The transaction is subject to requisite regulatory approval from the Office of the Comptroller of the Currency and other customary closing conditions. We expect the transaction to close in the fourth quarter of 2013.
	The following table summarizes the assets and liabilities (in millions) held for sale in our condensed consolidated balance sheets:
		12/31/12		9/30/13
	Cash and cash equivalents	$	44.3	$	32.1
	Debt securities	136		125
	Other assets	0.4		0.1
	Total assets held for sale	$	180.7	$	157.2
	Accounts payable and accrued expenses	$	0.1	$	0.1
	Income taxes payable	1.3		0.7
	Customer deposits	154.7		132.9
	Total liabilities held for sale	$	156.1	$	133.7

DEBT_SECURITIES_HELD_BY_SAVING

DEBT SECURITIES HELD BY SAVINGS BANK SUBSIDIARY. (Debt securities held by savings bank subsidiary [Member])	9 Months Ended
	Sep. 30, 2013
Debt securities held by savings bank subsidiary [Member]
Investments in debt and marketable equity securities
Debt securities held by savings bank subsidiary
	NOTE 5	– DEBT SECURITIES HELD BY SAVINGS BANK SUBSIDIARY.
	Our savings bank subsidiary holds investments in marketable debt securities, including mortgage- and other asset-backed securities, which are accounted for as available-for-sale. The following table (in millions) details the components of these investments.
		12/31/12				9/30/13
		Fair		Unrealized		Fair		Unrealized
		value		holding		value		holding
				gains				gains
				(losses)				(losses)
	Investments with temporary impairment (0 securities in 2013) of
	Less than 12 months	$	6.4	$	—	$	—	$	—
	12 months or more	1		—		—		—
	Total	7.4		—		—		—
	Investments with unrealized holding gains	128.6		3.2		125		1.8
	Total	$	136	$	3.2	$	125	$	1.8
	Aggregate cost	$	132.8			$	123.2
	The unrealized losses in these investments at December 31, 2012 totaled $35,000 and were generally caused by changes in interest rates and market liquidity, and not by changes in credit quality. We intended to hold these securities to their maturities and believed it was more-likely-than-not that we would not be required to sell any of these securities before recovery of their amortized cost. Accordingly, impairment of these investments was considered temporary at December 31, 2012.

OTHER_INVESTMENTS

OTHER INVESTMENTS.	9 Months Ended
	Sep. 30, 2013
Investments, All Other Investments [Abstract]
Other investments
	NOTE 6	– OTHER INVESTMENTS.
	These investments (in millions) include:
		12/31/12		9/30/13
	Cost method investments
	10% interest in Daiwa SB Investments Ltd. (Japan)	$	12.7	$	6.6
	Other investments	46.5		51.9
	Equity method investments
	26% interest in UTI Asset Management Company Limited (India)	139.8		126.2
	Sponsored fund investments	—		77.6
	Other investments	9.4		4.5
	Investments held as trading
	Sponsored fund investments	2.6		8.2
	Securities held by consolidated sponsored investment portfolios	92.7		38.1
	U.S. Treasury note	1		1
	Total	$	304.7	$	314.1
	The securities held by consolidated sponsored investment portfolios relate to investment portfolios in which we provided initial seed capital at the time of its formation. We have determined at December 31, 2012 and September 30, 2013, that these investment portfolios are voting interest entities in which we have a controlling financial interest.
	During the second quarter of 2013, we deconsolidated certain sponsored investment portfolios in which we provided initial seed capital at the time of its formation as we no longer had a controlling financial interest. Accordingly, we deconsolidated the carrying value of the investments held as trading, which was $80.1 million at the time, and are reporting our residual interest in these sponsored investment portfolios as an equity method investment.

FAIR_VALUE_MEASUREMENTS

FAIR VALUE MEASUREMENTS.	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]
Fair value measurements
	NOTE 7	– FAIR VALUE MEASUREMENTS.
	We determine the fair value of our investments using the following broad levels of inputs as defined by related accounting standards:
	Level 1 – quoted prices in active markets for identical securities.
	Level 2 – observable inputs other than Level 1 quoted prices including, but not limited to, quoted prices for similar securities, interest rates, prepayment speeds, and credit risk. These inputs are based on market data obtained from independent sources.
	Level 3 – unobservable inputs reflecting our own assumptions based on the best information available. We do not value any investments using Level 3 inputs.
	These levels are not necessarily an indication of the risk or liquidity associated with our investments. There have been no transfers in or out of the levels. The following table summarizes our investments (in millions) that are recognized in our condensed consolidated balance sheets using fair value measurements determined based on the differing levels of inputs.
		Level 1		Level 2
	31-Dec-12
	Cash equivalents	$	732.8
	Investments in sponsored funds - available-for-sale	1,140.10
	Investments held as trading	18.1		$	77.2
	Debt securities held by savings bank subsidiary	—		136
	Total	$	1,891.00	$	213.2
	30-Sep-13
	Cash equivalents	$	1,494.80
	Investments in sponsored funds - available-for-sale	1,307.80
	Investments held as trading	33.5		$	12.8
	Debt securities held by savings bank subsidiary	—		125
	Total	$	2,836.10	$	137.8
	Customer deposits at our savings bank subsidiary are not measured at fair value in our condensed consolidated balance sheets. At December 31, 2012, the estimated fair value of these deposits, based on discounting expected cash outflows at maturity dates that range up to five years using current interest rates offered for deposits with the same dates of maturity, was $157.8 million. At September 30, 2013, the carrying value of these deposits approximates fair value. The fair value was based on the price to transfer the customer deposit obligation to a market participant as evidenced in the agreement to sell our savings bank subsidiary. These fair values were determined using Level 2 inputs.

STOCKBASED_COMPENSATION

STOCK-BASED COMPENSATION.	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based compensation
	NOTE 8	– STOCK-BASED COMPENSATION.
	STOCK OPTIONS.
	The following table summarizes the status of and changes in our stock option grants during the first nine months of 2013.
		Options		Weighted-
				average
				exercise
				price
	Outstanding at beginning of year	34,622,435		$	48.82
	Semiannual grants	3,559,375		$	71.73
	New hire and reload grants	14,025		$	73.53
	Non-employee director grants	4,200		$	71.48
	Exercised	(4,048,323	)	$	44.5
	Forfeited	(610,566	)	$	55.06
	Expired	(1,217	)	$	53.22
	Outstanding at end of period	33,539,929		$	51.67
	Exercisable at end of period	17,187,492		$	46.28
	RESTRICTED SHARES AND STOCK UNITS.
	The following table summarizes the status of and changes in our nonvested restricted shares and restricted stock units during the first nine months of 2013.
		Restricted		Restricted		Weighted-average
		shares		stock		fair value
				units
	Nonvested at beginning of year	1,161,164		597,042		$	59.13
	Granted to employees and directors - time-based	1,093,606		392,623		$	71.8
	Granted to employees - performance-based	24,000		62,250		$	71.7
	Vested	(13,594	)	(11,288	)	$	58.69
	Forfeited	(69,703	)	(19,254	)	$	60.28
	Nonvested at end of period	2,195,473		1,021,373		$	65.29
	The nonvested totals at the end of the period include 48,000 performance-based restricted shares and 133,125 performance-based restricted stock units. The performance period has lapsed and the performance threshold has been met for 24,000 restricted shares and 70,875 restricted stock units that were outstanding at the end of the period.
	FUTURE STOCK-BASED COMPENSATION EXPENSE.
	The following table presents the compensation expense (in millions) to be recognized over the remaining vesting periods of the stock-based awards outstanding at September 30, 2013. Estimated future compensation expense will change to reflect future option grants, including reloads; future awards of unrestricted shares, restricted shares, and restricted stock units; changes in estimated forfeitures; changes in the probability of performance thresholds being met; and adjustments for actual forfeitures.
	Fourth quarter 2013	$	33.6
	2014	105.2
	2015 through 2018	110.4
	Total	$	249.2

EARNINGS_PER_SHARE_CALCULATION

EARNINGS PER SHARE CALCULATIONS.	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]
Earnings per share calculations
	NOTE 9	– EARNINGS PER SHARE CALCULATIONS.
	The following table presents the reconciliation (in millions) of our net income to net income allocated to our common stockholders and the weighted-average shares (in millions) that are used in calculating the basic and diluted earnings per share on our common stock. Weighted-average common shares outstanding assuming dilution reflects the potential dilution, determined using the treasury stock method that could occur if outstanding stock options were exercised and non-participating stock awards vested.
		Three months ended							Nine months ended
		9/30/12				9/30/13			9/30/12			9/30/13
	Net income	$	247.3			$	270.3		$	651.6		$	760
	Less: net income allocated to outstanding restricted stock and stock unit holders	(1.6		)		(2.6		)	(3.8		)	(6.4		)
	Net income allocated to common stockholders	$	245.7			$	267.7		$	647.8		$	753.6
	Weighted-average common shares
	Outstanding	253				258.7			253.2			257.9
	Outstanding assuming dilution	260.3				266.5			260.7			265.9
	The following table shows the weighted-average outstanding stock options (in millions) that are excluded from the calculation of diluted earnings per common share as the inclusion of such shares would be anti-dilutive.
		Three months ended						Nine months ended
		9/30/12			9/30/13			9/30/12		9/30/13
	Weighted-average outstanding stock options excluded	5.3			2.7			5.1		2.9

OTHER_COMPREHENSIVE_INCOME_AND

OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME.	9 Months Ended
	Sep. 30, 2013
Stockholders' Equity Note [Abstract]
Other comprehensive income and accumulated other comprehensive income	NOTE 10 - OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME.
	The following table presents the deferred tax benefit (income tax) impact of the components (in millions) of other comprehensive income.
		Three months ended						Nine months ended
		9/30/12			9/30/13			9/30/12			9/30/13
	Deferred tax benefit (income taxes) on:
	Net unrealized holding gains	$	(15.8	)	$	(24.1	)	$	(32.8	)	$	(35.5	)
	Reclassification adjustment recognized in non-operating investment income:
	Net gains realized on dispositions, determined using average cost	12.1			—			13.1			4.5
	Deferred income taxes on net unrealized holding gains recognized in other comprehensive income	(3.7		)	(24.1		)	(19.7		)	(31.0		)
	Deferred tax benefit on currency translation adjustment	4.1			4.3			6			6.1
	Total net deferred tax benefit (income taxes)	$	0.4		$	(19.8	)	$	(13.7	)	$	(24.9	)
	The changes in accumulated other comprehensive income (in millions), by component, for the first nine months of 2013, are presented below.
		12/31/12			Other comprehensive income, net of tax			9/30/13
	Net unrealized holding gains (losses) on:
	Investments in sponsored funds	$	232.3		$	80.7		$	313
	Debt securities held by savings bank subsidiary	3.2			(1.4		)	1.8
	Proportionate share of investments held by UTI	0.6			(.1		)	0.5
		236.1			79.2			315.3
	Net deferred income taxes	(91.6		)	(31.0		)	(122.6		)
	Net unrealized holding gains, net of taxes	144.5			48.2			192.7
	Currency translation adjustment, net of taxes	(12.6		)	(11.2		)	(23.8		)
	Accumulated other comprehensive income	$	131.9		$	37		$	168.9
	Other comprehensive income, net of taxes, related to our net unrealized holding gains for the nine months ended September 30, 2012 and 2013, includes $33.7 million and $11.5 million, respectively, in gains realized on dispositions that were reclassified from accumulated other comprehensive income to non-operating investment income. The income taxes related to these gains of $13.1 million and $4.5 million, respectively, were reclassified from accumulated other comprehensive income to our provision for income taxes.

INFORMATION_ABOUT_RECEIVABLES_1

INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES. (Tables)	9 Months Ended
	Sep. 30, 2013
Information about Receivables, Revenues, and Services [Abstract]
Components of revenues from advisory services	Revenues (in millions) from advisory services provided under agreements with our sponsored mutual funds and other investment clients include:
		Three months ended				Nine months ended
		9/30/12		9/30/13		9/30/12		9/30/13
	Sponsored mutual funds in the U.S.
	Stock and blended asset	$	368.1	$	452	$	1,059.60	$	1,276.30
	Bond and money market	90		89.3		258.7		275
		458.1		541.3		1,318.30		1,551.30
	Other portfolios
	Stock and blended asset	160.2		187.4		472.1		538.1
	Bond, money market, and stable value	43.1		39.6		124		121.5
		203.3		227		596.1		659.6
	Total	$	661.4	$	768.3	$	1,914.40	$	2,210.90
Components of assets under management	The following table summarizes the various investment portfolios and assets under management (in billions) on which we earn advisory fees.
		Average during				Average during
		the third quarter of				the first nine months of
		2012		2013		2012		2013
	Sponsored mutual funds in the U.S.
	Stock and blended asset	$	246.4	$	305.4	$	237.8	$	289.5
	Bond and money market	86.1		90.8		83.3		91.8
		332.5		396.2		321.1		381.3
	Other portfolios
	Stock and blended asset	159.2		182.5		156.9		177.3
	Bond, money market, and stable value	66.1		57.6		64.2		62.3
		225.3		240.1		221.1		239.6
	Total	$	557.8	$	636.3	$	542.2	$	620.9
		As of
		12/31/12		9/30/13
	Sponsored mutual funds in the U.S.
	Stock and blended asset	$	256.9	$	312.4
	Bond and money market	90		91.4
		346.9		403.8
	Other portfolios
	Stock and blended asset	164.2		181.4
	Bond, money market, and stable value	65.7		62
		229.9		243.4
	Total	$	576.8	$	647.2

INVESTMENTS_IN_SPONSORED_FUNDS1

INVESTMENTS IN SPONSORED FUNDS - AVAILABLE-FOR-SALE. (Tables) (Investments in sponsored funds [Member])	9 Months Ended
	Sep. 30, 2013
Investments in sponsored funds [Member]
Investments in debt and marketable equity securities
Investments in sponsored funds reconciliation	These sponsored funds (in millions) are voting interest entities and include:
		Aggregate		Unrealized holding					Aggregate
		cost		gains		losses			fair value
	31-Dec-12
	Stock and blended asset funds	$	336.9	$	178.9	$	—		$	515.8
	Bond funds	570.9		53.4		—			624.3
	Total	$	907.8	$	232.3	$	—		$	1,140.10
	September 30, 2013
	Stock and blended asset funds	$	348.8	$	266.3	$	—		$	615.1
	Bond funds	646		49.7		(3.0		)	692.7
	Total	$	994.8	$	316	$	(3.0	)	$	1,307.80

SAVINGS_BANK_SUBSIDIARY_Tables

SAVINGS BANK SUBSIDIARY. (Tables)	9 Months Ended
	Sep. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]
Assets and liabilities held for sale	The following table summarizes the assets and liabilities (in millions) held for sale in our condensed consolidated balance sheets:
		12/31/12		9/30/13
	Cash and cash equivalents	$	44.3	$	32.1
	Debt securities	136		125
	Other assets	0.4		0.1
	Total assets held for sale	$	180.7	$	157.2
	Accounts payable and accrued expenses	$	0.1	$	0.1
	Income taxes payable	1.3		0.7
	Customer deposits	154.7		132.9
	Total liabilities held for sale	$	156.1	$	133.7

DEBT_SECURITIES_HELD_BY_SAVING1

DEBT SECURITIES HELD BY SAVINGS BANK SUBSIDIARY. (Tables) (Debt securities held by savings bank subsidiary [Member])	9 Months Ended
	Sep. 30, 2013
Debt securities held by savings bank subsidiary [Member]
Investments in debt and marketable equity securities
Investments in debt securities held by savings bank subsidiary reconciliation	The following table (in millions) details the components of these investments.
		12/31/12				9/30/13
		Fair		Unrealized		Fair		Unrealized
		value		holding		value		holding
				gains				gains
				(losses)				(losses)
	Investments with temporary impairment (0 securities in 2013) of
	Less than 12 months	$	6.4	$	—	$	—	$	—
	12 months or more	1		—		—		—
	Total	7.4		—		—		—
	Investments with unrealized holding gains	128.6		3.2		125		1.8
	Total	$	136	$	3.2	$	125	$	1.8
	Aggregate cost	$	132.8			$	123.2

OTHER_INVESTMENTS_Tables

OTHER INVESTMENTS. (Tables)	9 Months Ended
	Sep. 30, 2013
Investments, All Other Investments [Abstract]
Components of other investments	These investments (in millions) include:
		12/31/12		9/30/13
	Cost method investments
	10% interest in Daiwa SB Investments Ltd. (Japan)	$	12.7	$	6.6
	Other investments	46.5		51.9
	Equity method investments
	26% interest in UTI Asset Management Company Limited (India)	139.8		126.2
	Sponsored fund investments	—		77.6
	Other investments	9.4		4.5
	Investments held as trading
	Sponsored fund investments	2.6		8.2
	Securities held by consolidated sponsored investment portfolios	92.7		38.1
	U.S. Treasury note	1		1
	Total	$	304.7	$	314.1

FAIR_VALUE_MEASUREMENTS_Tables

FAIR VALUE MEASUREMENTS. (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]
Fair value measurements table	The following table summarizes our investments (in millions) that are recognized in our condensed consolidated balance sheets using fair value measurements determined based on the differing levels of inputs.
		Level 1		Level 2
	31-Dec-12
	Cash equivalents	$	732.8
	Investments in sponsored funds - available-for-sale	1,140.10
	Investments held as trading	18.1		$	77.2
	Debt securities held by savings bank subsidiary	—		136
	Total	$	1,891.00	$	213.2
	30-Sep-13
	Cash equivalents	$	1,494.80
	Investments in sponsored funds - available-for-sale	1,307.80
	Investments held as trading	33.5		$	12.8
	Debt securities held by savings bank subsidiary	—		125
	Total	$	2,836.10	$	137.8

STOCKBASED_COMPENSATION_Tables

STOCK-BASED COMPENSATION. (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Rollforward of stock options	The following table summarizes the status of and changes in our stock option grants during the first nine months of 2013.
		Options		Weighted-
				average
				exercise
				price
	Outstanding at beginning of year	34,622,435		$	48.82
	Semiannual grants	3,559,375		$	71.73
	New hire and reload grants	14,025		$	73.53
	Non-employee director grants	4,200		$	71.48
	Exercised	(4,048,323	)	$	44.5
	Forfeited	(610,566	)	$	55.06
	Expired	(1,217	)	$	53.22
	Outstanding at end of period	33,539,929		$	51.67
	Exercisable at end of period	17,187,492		$	46.28
Rollforward of nonvested restricted shares and restricted stock units	The following table summarizes the status of and changes in our nonvested restricted shares and restricted stock units during the first nine months of 2013.
		Restricted		Restricted		Weighted-average
		shares		stock		fair value
				units
	Nonvested at beginning of year	1,161,164		597,042		$	59.13
	Granted to employees and directors - time-based	1,093,606		392,623		$	71.8
	Granted to employees - performance-based	24,000		62,250		$	71.7
	Vested	(13,594	)	(11,288	)	$	58.69
	Forfeited	(69,703	)	(19,254	)	$	60.28
	Nonvested at end of period	2,195,473		1,021,373		$	65.29
Future stock-based compensation expense	The following table presents the compensation expense (in millions) to be recognized over the remaining vesting periods of the stock-based awards outstanding at September 30, 2013. Estimated future compensation expense will change to reflect future option grants, including reloads; future awards of unrestricted shares, restricted shares, and restricted stock units; changes in estimated forfeitures; changes in the probability of performance thresholds being met; and adjustments for actual forfeitures.
	Fourth quarter 2013	$	33.6
	2014	105.2
	2015 through 2018	110.4
	Total	$	249.2

EARNINGS_PER_SHARE_CALCULATION1

EARNINGS PER SHARE CALCULATIONS. (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]
Earnings per share reconciliation	The following table presents the reconciliation (in millions) of our net income to net income allocated to our common stockholders and the weighted-average shares (in millions) that are used in calculating the basic and diluted earnings per share on our common stock. Weighted-average common shares outstanding assuming dilution reflects the potential dilution, determined using the treasury stock method that could occur if outstanding stock options were exercised and non-participating stock awards vested.
		Three months ended							Nine months ended
		9/30/12				9/30/13			9/30/12			9/30/13
	Net income	$	247.3			$	270.3		$	651.6		$	760
	Less: net income allocated to outstanding restricted stock and stock unit holders	(1.6		)		(2.6		)	(3.8		)	(6.4		)
	Net income allocated to common stockholders	$	245.7			$	267.7		$	647.8		$	753.6
	Weighted-average common shares
	Outstanding	253				258.7			253.2			257.9
	Outstanding assuming dilution	260.3				266.5			260.7			265.9
Antidilutive securities	The following table shows the weighted-average outstanding stock options (in millions) that are excluded from the calculation of diluted earnings per common share as the inclusion of such shares would be anti-dilutive.
		Three months ended						Nine months ended
		9/30/12			9/30/13			9/30/12		9/30/13
	Weighted-average outstanding stock options excluded	5.3			2.7			5.1		2.9

OTHER_COMPREHENSIVE_INCOME_AND1

OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME. (Tables)	9 Months Ended
	Sep. 30, 2013
Stockholders' Equity Note [Abstract]
Deferred tax benefit (income tax) impact of the components of other comprehensive income	The following table presents the deferred tax benefit (income tax) impact of the components (in millions) of other comprehensive income.
		Three months ended						Nine months ended
		9/30/12			9/30/13			9/30/12			9/30/13
	Deferred tax benefit (income taxes) on:
	Net unrealized holding gains	$	(15.8	)	$	(24.1	)	$	(32.8	)	$	(35.5	)
	Reclassification adjustment recognized in non-operating investment income:
	Net gains realized on dispositions, determined using average cost	12.1			—			13.1			4.5
	Deferred income taxes on net unrealized holding gains recognized in other comprehensive income	(3.7		)	(24.1		)	(19.7		)	(31.0		)
	Deferred tax benefit on currency translation adjustment	4.1			4.3			6			6.1
	Total net deferred tax benefit (income taxes)	$	0.4		$	(19.8	)	$	(13.7	)	$	(24.9	)
Changes in accumulated other comprehensive income	The changes in accumulated other comprehensive income (in millions), by component, for the first nine months of 2013, are presented below.
		12/31/12			Other comprehensive income, net of tax			9/30/13
	Net unrealized holding gains (losses) on:
	Investments in sponsored funds	$	232.3		$	80.7		$	313
	Debt securities held by savings bank subsidiary	3.2			(1.4		)	1.8
	Proportionate share of investments held by UTI	0.6			(.1		)	0.5
		236.1			79.2			315.3
	Net deferred income taxes	(91.6		)	(31.0		)	(122.6		)
	Net unrealized holding gains, net of taxes	144.5			48.2			192.7
	Currency translation adjustment, net of taxes	(12.6		)	(11.2		)	(23.8		)
	Accumulated other comprehensive income	$	131.9		$	37		$	168.9

INFORMATION_ABOUT_RECEIVABLES_2

INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES. (Receivables from Sponsored Mutual Funds) (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Receivables from sponsored mutual funds
Accounts receivable for advisory fees and advisory-related administrative services	$365.60	$353.90
Sponsored mutual funds in the U.S. [Member]
Receivables from sponsored mutual funds
Accounts receivable for advisory fees and advisory-related administrative services	$201.80	$184

INFORMATION_ABOUT_RECEIVABLES_3

INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES. (Investment Advisory Services) (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Investment advisory services
Revenues from advisory services	$768,300,000	$661,400,000	$2,210,900,000	$1,914,400,000
Average assets under management	636,300,000,000	557,800,000,000	620,900,000,000	542,200,000,000
Period end assets under management	647,200,000,000		647,200,000,000		576,800,000,000
Sponsored mutual funds in the U.S. [Member]
Investment advisory services
Revenues from advisory services	541,300,000	458,100,000	1,551,300,000	1,318,300,000
Average assets under management	396,200,000,000	332,500,000,000	381,300,000,000	321,100,000,000
Period end assets under management	403,800,000,000		403,800,000,000		346,900,000,000
Sponsored mutual funds in the U.S. [Member] | Stock and blended asset [Member]
Investment advisory services
Revenues from advisory services	452,000,000	368,100,000	1,276,300,000	1,059,600,000
Average assets under management	305,400,000,000	246,400,000,000	289,500,000,000	237,800,000,000
Period end assets under management	312,400,000,000		312,400,000,000		256,900,000,000
Sponsored mutual funds in the U.S. [Member] | Bond and money market [Member]
Investment advisory services
Revenues from advisory services	89,300,000	90,000,000	275,000,000	258,700,000
Average assets under management	90,800,000,000	86,100,000,000	91,800,000,000	83,300,000,000
Period end assets under management	91,400,000,000		91,400,000,000		90,000,000,000
Other portfolios [Member]
Investment advisory services
Revenues from advisory services	227,000,000	203,300,000	659,600,000	596,100,000
Average assets under management	240,100,000,000	225,300,000,000	239,600,000,000	221,100,000,000
Period end assets under management	243,400,000,000		243,400,000,000		229,900,000,000
Other portfolios [Member] | Stock and blended asset [Member]
Investment advisory services
Revenues from advisory services	187,400,000	160,200,000	538,100,000	472,100,000
Average assets under management	182,500,000,000	159,200,000,000	177,300,000,000	156,900,000,000
Period end assets under management	181,400,000,000		181,400,000,000		164,200,000,000
Other portfolios [Member] | Bond, money market, and stable value [Member]
Investment advisory services
Revenues from advisory services	39,600,000	43,100,000	121,500,000	124,000,000
Average assets under management	57,600,000,000	66,100,000,000	62,300,000,000	64,200,000,000
Period end assets under management	$62,000,000,000		$62,000,000,000		$65,700,000,000

INFORMATION_ABOUT_RECEIVABLES_4

INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES. (Revenues and Services Concentration) (Detail) (Geographic Concentration [Member])	9 Months Ended
	Sep. 30, 2013
Geographic Concentration [Member]
Revenues and services concentration
Concentration Risk, Additional Characteristic	investment advisory clients outside the U.S.
Concentration Risk, Percentage	7.00%
Concentration Risk, Benchmark Description	assets under management at September 30, 2013

INFORMATION_ABOUT_RECEIVABLES_5

INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES. (Administrative and Distribution Services Provided to Sponsored Mutual Funds) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Administrative and distribution services provided to sponsored mutual funds
Fees for advisory-related administrative services	$85.40	$83.40	$258.10	$249
Distribution and other servicing fees	30.5	24.4	84.8	70.3
Sponsored mutual funds in the U.S. [Member]
Administrative and distribution services provided to sponsored mutual funds
Fees for advisory-related administrative services	65.3	64.8	199.1	193.6
Distribution and other servicing fees	$30.50	$24.40	$84.80	$70.30

INVESTMENTS_IN_SPONSORED_FUNDS2

INVESTMENTS IN SPONSORED FUNDS - AVAILABLE-FOR-SALE. (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Investments in sponsored funds
Aggregate cost	$994,800,000	$907,800,000
Unrealized holding gains	316,000,000	232,300,000
Unrealized holding losses	-3,000,000	0
Aggregate fair value	1,307,800,000	1,140,100,000
Stock and blended asset funds [Member]
Investments in sponsored funds
Aggregate cost	348,800,000	336,900,000
Unrealized holding gains	266,300,000	178,900,000
Unrealized holding losses	0	0
Aggregate fair value	615,100,000	515,800,000
Bond funds [Member]
Investments in sponsored funds
Aggregate cost	646,000,000	570,900,000
Unrealized holding gains	49,700,000	53,400,000
Unrealized holding losses	-3,000,000	0
Aggregate fair value	692,700,000	624,300,000
Investments in sponsored funds [Member]
Investments in sponsored funds
Fund holdings with temporary unrealized holding losses (number of securities)	4
Unrealized holding losses at September 30, 2013, are attributable to four fund holdings with an aggregate fair value of	$155,800,000

SAVINGS_BANK_SUBSIDIARY_Detail

SAVINGS BANK SUBSIDIARY. (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2013	23-May-13	Dec. 31, 2012
					Savings bank subsidiary [Member]	Savings bank subsidiary [Member]	Savings bank subsidiary [Member]
Assets and liabilities held for sale
Capital stock sold (percentage)						100.00%
Portion of sale price in excess of net book value						$500,000
Cash and cash equivalents	1,693,300,000	879,100,000	1,235,000,000	897,900,000	32,100,000		44,300,000
Debt securities	125,000,000	136,000,000			125,000,000		136,000,000
Other assets	87,800,000	162,300,000			100,000		400,000
Total assets held for sale	5,126,800,000	4,202,800,000			157,200,000		180,700,000
Accounts payable and accrued expenses	97,300,000	89,700,000			100,000		100,000
Income taxes payable	43,300,000	21,500,000			700,000		1,300,000
Customer deposits	132,900,000	154,700,000			132,900,000		154,700,000
Total liabilities held for sale	$586,200,000	$356,700,000			$133,700,000		$156,100,000

DEBT_SECURITIES_HELD_BY_SAVING2

DEBT SECURITIES HELD BY SAVINGS BANK SUBSIDIARY. (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2013
		security
Investments with temporary impairment (0 securities in 2013) of (fair values)
Total fair value	$136,000,000	$125,000,000
Aggregate cost	132,800,000	123,200,000
Investments with temporary impairment (0 securities in 2013) of (unrealized holding gains (losses))
Unrealized holding losses on investments with temporary impairment of less than 12 months	0	0
Unrealized holding losses on investments with temporary impairment of 12 months or more	0	0
Total unrealized holding losses on investments with temporary impairment	35,000	0
Unrealized holding gains	3,200,000	1,800,000
Total unrealized holding gains (losses)	3,200,000	1,800,000
Debt securities held by savings bank subsidiary [Member]
Investments with temporary impairment (0 securities in 2013) of (fair values)
Investments with temporary impairment (number of securities)		0
Fair value of investments with temporary impairment of less than 12 months	6,400,000	0
Fair value of investments with temporary impairment of 12 months or more	1,000,000	0
Total fair value of investments with temporary impairment	7,400,000	0
Fair value of investments with unrealized holding gains	$128,600,000	$125,000,000
Investments with temporary impairment (0 securities in 2013) of (unrealized holding gains (losses))
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Cause	The unrealized losses in these investments at December 31, 2012 totaled $35,000 and were generally caused by changes in interest rates and market liquidity, and not by changes in credit quality.
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other	We intended to hold these securities to their maturities and believed it was more-likely-than-not that we would not be required to sell any of these securities before recovery of their amortized cost. Accordingly, impairment of these investments was considered temporary at December 31, 2012.

OTHER_INVESTMENTS_Detail

OTHER INVESTMENTS. (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2013	Dec. 31, 2012
Other investments
U.S. Treasury note		$1	$1
Total		314.1	304.7
Deconsolidated value	80.1
Sponsored fund investments held as trading [Member]
Other investments
Investments held as trading		8.2	2.6
Securities held by consolidated sponsored investment portfolios [Member]
Other investments
Investments held as trading		38.1	92.7
26% Interest in UTI Asset Management Company Limited (India) [Member]
Other investments
Equity method investments		126.2	139.8
Equity method investment (ownership percentage)		26.00%	26.00%
Sponsored fund equity method investments [Member]
Other investments
Equity method investments		77.6	0
Other equity method investments [Member]
Other investments
Equity method investments		4.5	9.4
10% Interest in Daiwa SB Investments Ltd (Japan) [Member]
Other investments
Cost method investments		6.6	12.7
Cost method investment (ownership percentage)		10.00%	10.00%
Other cost method investments [Member]
Other investments
Cost method investments		$51.90	$46.50

FAIR_VALUE_MEASUREMENTS_Report

FAIR VALUE MEASUREMENTS. (Reported on Balance Sheet) (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair value measurements
Investments in sponsored funds	$1,307.80	$1,140.10
Debt securities held by savings bank subsidiary	125	136
Level 1 [Member]
Fair value measurements
Total	2,836.10	1,891
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair value measurements
Cash equivalents	1,494.80	732.8
Investments in sponsored funds	1,307.80	1,140.10
Investments held as trading	33.5	18.1
Level 2 [Member]
Fair value measurements
Total	137.8	213.2
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair value measurements
Investments held as trading	12.8	77.2
Debt securities held by savings bank subsidiary	$125	$136

FAIR_VALUE_MEASUREMENTS_Disclo

FAIR VALUE MEASUREMENTS. (Disclosures) (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012
Fair value measurements
Maximum maturities of customer deposits	5 years
Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair value measurements
Estimated fair value of customer deposits	157.8

STOCKBASED_COMPENSATION_Detail

STOCK-BASED COMPENSATION. (Detail) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2013
Stock options
Outstanding at beginning of year	34,622,435
Exercised	-4,048,323
Forfeited	-610,566
Expired	-1,217
Outstanding at end of period	33,539,929
Exercisable at end of period	17,187,492
Stock options, weighted-average exercise price
Weighted-average exercise price of options outstanding at beginning of year (in dollars per option)	$48.82
Weighted-average exercise price of options exercised (in dollars per option)	$44.50
Weighted-average exercise price of options forfeited (in dollars per option)	$55.06
Weighted-average exercise price of options expired (in dollars per option)	$53.22
Weighted-average exercise price of options outstanding at end of period (in dollars per option)	$51.67
Weighted-average exercise price of options exercisable at end of period (in dollars per option)	$46.28
Restricted shares and stock units, weighted-average fair value
Weighted-average fair value of nonvested restricted shares and restricted stock units at beginning of year (in dollars per share)	$59.13
Weighted-average fair value of restricted shares and restricted stock units vested (in dollars per share)	$58.69
Weighted-average fair value of restricted shares and restricted stock units forfeited (in dollars per share)	$60.28
Weighted-average fair value of nonvested restricted shares and restricted stock units at end of period (in dollars per share)	$65.29
Future stock-based compensation expense
Fourth quarter 2013 (dollars)	$33.60
2014 (dollars)	105.2
2015 through 2018 (dollars)	110.4
Total (dollars)	$249.20
Time-based [Member]
Restricted shares and stock units, weighted-average fair value
Weighted-average fair value of restricted shares and restricted stock units granted (in dollars per share)	$71.80
Performance-Based [Member]
Restricted shares and stock units, weighted-average fair value
Weighted-average fair value of restricted shares and restricted stock units granted (in dollars per share)	$71.70
Restricted shares [Member]
Restricted shares and stock units
Nonvested at beginning of year	1,161,164
Vested	-13,594
Forfeited	-69,703
Nonvested at end of period	2,195,473
Restricted shares [Member] | Time-based [Member]
Restricted shares and stock units
Granted	1,093,606
Restricted shares [Member] | Performance-Based [Member]
Restricted shares and stock units
Granted	24,000
Nonvested at end of period	48,000
Restricted shares [Member] | Performance-Based [Member] | Performance Conditions Met [Member]
Restricted shares and stock units
Nonvested at end of period	24,000
Restricted stock units [Member]
Restricted shares and stock units
Nonvested at beginning of year	597,042
Vested	-11,288
Forfeited	-19,254
Nonvested at end of period	1,021,373
Restricted stock units [Member] | Time-based [Member]
Restricted shares and stock units
Granted	392,623
Restricted stock units [Member] | Performance-Based [Member]
Restricted shares and stock units
Granted	62,250
Nonvested at end of period	133,125
Restricted stock units [Member] | Performance-Based [Member] | Performance Conditions Met [Member]
Restricted shares and stock units
Nonvested at end of period	70,875
Employee global long-term incentive plan [Member] | Semiannual [Member]
Stock options
Grants	3,559,375
Stock options, weighted-average exercise price
Weighted-average exercise price of option grants (in dollars per option)	$71.73
Employee global long-term incentive plan [Member] | New hire and reload [Member]
Stock options
Grants	14,025
Stock options, weighted-average exercise price
Weighted-average exercise price of option grants (in dollars per option)	$73.53
Non-employee director [Member]
Stock options
Grants	4,200
Stock options, weighted-average exercise price
Weighted-average exercise price of option grants (in dollars per option)	$71.48

EARNINGS_PER_SHARE_CALCULATION2

EARNINGS PER SHARE CALCULATIONS. (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]
Net income	$270.30	$247.30	$760	$651.60
Less: net income allocated to outstanding restricted stock and stock unit holders	-2.6	-1.6	-6.4	-3.8
Net income allocated to common stockholders (basic)	267.7	245.7	753.6	647.8
Net income allocated to common stockholders (diluted)	$267.70	$245.70	$753.60	$647.80
Weighted-average common shares
Outstanding (shares)	258.7	253	257.9	253.2
Outstanding assuming dilution (shares)	266.5	260.3	265.9	260.7
Weighted-average outstanding stock options excluded (options)	2.7	5.3	2.9	5.1

OTHER_COMPREHENSIVE_INCOME_AND2

OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME. (Deferred Tax Benefit (Income Tax) Impact) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Deferred tax benefit (income taxes) on:
Net unrealized holding gains	($24.10)	($15.80)	($35.50)	($32.80)
Net gains realized on dispositions, determined using average cost	0	12.1	4.5	13.1
Deferred income taxes on net unrealized holding gains recognized in other comprehensive income	-24.1	-3.7	-31	-19.7
Deferred tax benefit on currency translation adjustment	4.3	4.1	6.1	6
Total net deferred tax benefit (income taxes)	($19.80)	$0.40	($24.90)	($13.70)

OTHER_COMPREHENSIVE_INCOME_AND3

OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME. (Accumulated Other Comprehensive Income) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Increase decrease in accumulated other comprehensive income loss
Other comprehensive income, before tax	$50.30	($2.20)	$61.90	$31.30
Net deferred income taxes recognized in other comprehensive income	-19.8	0.4	-24.9	-13.7
Accumulated other comprehensive income			131.9
Other comprehensive income, net of tax	30.5	-1.8	37	17.6
Accumulated other comprehensive income	168.9		168.9
Net unrealized holding gains (losses) [Member]
Increase decrease in accumulated other comprehensive income loss
Accumulated other comprehensive income (loss), before tax			236.1
Other comprehensive income, before tax			79.2
Accumulated other comprehensive income (loss), before tax	315.3		315.3
Net deferred income taxes			-91.6
Net deferred income taxes recognized in other comprehensive income			-31
Net deferred income taxes	-122.6		-122.6
Accumulated other comprehensive income			144.5
Other comprehensive income, net of tax			48.2
Accumulated other comprehensive income	192.7		192.7
Net unrealized holding gains (losses) [Member] | Investments in sponsored funds [Member]
Increase decrease in accumulated other comprehensive income loss
Accumulated other comprehensive income (loss), before tax			232.3
Other comprehensive income, before tax			80.7
Accumulated other comprehensive income (loss), before tax	313		313
Net unrealized holding gains (losses) [Member] | Debt securities held by savings bank subsidiary [Member]
Increase decrease in accumulated other comprehensive income loss
Accumulated other comprehensive income (loss), before tax			3.2
Other comprehensive income, before tax			-1.4
Accumulated other comprehensive income (loss), before tax	1.8		1.8
Net unrealized holding gains (losses) [Member] | Proportionate share of investments held by UTI [Member]
Increase decrease in accumulated other comprehensive income loss
Accumulated other comprehensive income (loss), before tax			0.6
Other comprehensive income, before tax			-0.1
Accumulated other comprehensive income (loss), before tax	0.5		0.5
Currency translation adjustment, net of taxes [Member]
Increase decrease in accumulated other comprehensive income loss
Accumulated other comprehensive income			-12.6
Other comprehensive income, net of tax			-11.2
Accumulated other comprehensive income	($23.80)		($23.80)

OTHER_COMPREHENSIVE_INCOME_AND4

OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassification Adjustments) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reclassification out of accumulated other comprehensive income
Non-operating investment income	$11.60	$41.40	$31.30	$53.90
Provision for income taxes	167.2	153	468.6	405.4
Reclassification out of accumulated other comprehensive income [Member] | Net unrealized holding gains [Member]
Reclassification out of accumulated other comprehensive income
Non-operating investment income			11.5	33.7
Provision for income taxes			$4.50	$13.10