INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES - Investment Advisory Services (Details) - USD ($) $ in Millions | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 |
Revenue and Services [Line Items] | | | |
Net revenues | $ 1,863 | $ 1,826.8 | |
Average assets under management | 1,559,900 | 1,508,800 | |
Period end assets under management | 1,551,800 | | $ 1,687,800 |
U.S. mutual funds | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 1,095.9 | 1,158 | |
Average assets under management | 798,000 | 814,500 | |
Period end assets under management | 789,400 | | 871,400 |
U.S. mutual funds | Equity | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 491,300 | 509,600 | |
Period end assets under management | 489,000 | | 553,900 |
U.S. mutual funds | Fixed income, including money market | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 86,400 | 82,300 | |
Period end assets under management | 83,900 | | 85,300 |
U.S. mutual funds | Multi-asset | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 220,300 | 222,600 | |
Period end assets under management | 216,500 | | 232,200 |
Subadvised funds, separate accounts, collective investment trusts, and other investment products | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 730 | 637.6 | |
Average assets under management | 761,900 | 694,300 | |
Period end assets under management | 762,400 | | 816,400 |
Subadvised funds, separate accounts, collective investment trusts, and other investment products | Equity | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 395,200 | 408,400 | |
Period end assets under management | 389,000 | | 438,800 |
Subadvised funds, separate accounts, collective investment trusts, and other investment products | Fixed income, including money market | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 91,400 | 90,700 | |
Period end assets under management | 91,300 | | 90,400 |
Subadvised funds, separate accounts, collective investment trusts, and other investment products | Multi-asset | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 233,400 | 195,200 | |
Period end assets under management | 239,900 | | 245,500 |
Subadvised funds, separate accounts, collective investment trusts, and other investment products | Alternatives | | | |
Revenue and Services [Line Items] | | | |
Average assets under management | 41,900 | 0 | |
Period end assets under management | 42,200 | | $ 41,700 |
Other clients | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 37.1 | 31.2 | |
Investment advisory fees | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 1,662.1 | 1,687.8 | |
Investment advisory fees | U.S. mutual funds | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 976.5 | 1,050.2 | |
Investment advisory fees | U.S. mutual funds | Equity | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 691.9 | 729.8 | |
Investment advisory fees | U.S. mutual funds | Fixed income, including money market | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 64 | 59 | |
Investment advisory fees | U.S. mutual funds | Multi-asset | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 220.6 | 261.4 | |
Investment advisory fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 685.6 | 637.6 | |
Investment advisory fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | Equity | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 394.1 | 424.2 | |
Investment advisory fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | Fixed income, including money market | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 42.6 | 37.5 | |
Investment advisory fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | Multi-asset | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 184 | 175.9 | |
Investment advisory fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | Alternatives | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 64.9 | 0 | |
Investment advisory fees | Other clients | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 0 | 0 | |
Administrative fees | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 130.2 | 109.9 | |
Administrative fees | U.S. mutual funds | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 93.1 | 78.7 | |
Administrative fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 0 | 0 | |
Administrative fees | Other clients | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 37.1 | 31.2 | |
Distribution and servicing fees | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 26.3 | 29.1 | |
Distribution and servicing fees | U.S. mutual funds | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 26.3 | 29.1 | |
Distribution and servicing fees | Subadvised funds, separate accounts, collective investment trusts, and other investment products | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 0 | 0 | |
Distribution and servicing fees | Other clients | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 0 | 0 | |
Capital allocation-based income | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 44.4 | $ 0 | |
Capital allocation-based income | U.S. mutual funds | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 0 | | |
Capital allocation-based income | Subadvised funds, separate accounts, collective investment trusts, and other investment products | | | |
Revenue and Services [Line Items] | | | |
Net revenues | 44.4 | | |
Capital allocation-based income | Other clients | | | |
Revenue and Services [Line Items] | | | |
Net revenues | $ 0 | | |