Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Related Party Transaction [Line Items] | |||
| Due from related parties | $ 119 | $ 179 | |
| Due to related parties | 12 | 11 | |
| BlackRock Mutual Funds and iShares ETFs [Member] | |||
| Related Party Transaction [Line Items] | |||
| Accounts receivable from related parties | 995 | 878 | |
| General and Administration Expense [Member] | |||
| Related Party Transaction [Line Items] | |||
| Expense with related parties | $ 2 | $ 2 | $ 10 |
| PNC [Member] | |||
| Related Party Transaction [Line Items] | |||
| Percentage of common stock of parent owned | 22.00% | ||
| Percentage of capital stock of parent owned | 22.40% | ||
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- Definition Noncontrolling owners percentage of voting common stock. No definition available.
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- Definition For an unclassified balance sheet, amount of receivables arising from transactions with related parties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying amount as of the balance sheet date of obligations due all related parties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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