Business Combination - Allocation of Purchase Price (Details) - USD ($) $ in Millions		9 Months Ended
Jul. 01, 2021	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill		$ 201
Boston Private
Business Acquisition [Line Items]
Cash paid	$ 174
Share-based consideration	1,050
Replacement equity awards	10
Total purchase consideration	1,234
Fair value of net assets acquired	1,033
Goodwill	$ 201

Business Combination, Consideration Transferred, Replacement Equity Awards

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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.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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The fair value of assets acquired in noncash investing or financing activities.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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