Business Combinations - Narative (Details) $ in Billions	Feb. 07, 2019 USD ($) shares
Business Acquisition [Line Items]
mutual break-up fee \| $	$ 1.1
BB&T Corporation
Business Acquisition [Line Items]
Business Combination Equity Interest Received \| shares	1.295

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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