Charges and Credits - Summary of Charges and Credits (Detail) - Interest And Other - Merger And Integration $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Charges And Credits [Line Items]
Charges and credits, Pretax Charge	$ 25
Charges and credits, Tax Benefit	6
Charges and credits, Noncontrolling Interests	5
Charges and credits, Net	$ 14