Description of Business and Summary of Significant Accounting Policies - Allowance for Credit Losses (Detail) - shares shares in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Restricted stock units outstanding to purchase shares included in diluted earnings per common share (in shares)	1.9	1.7	2.0
Maximum threshold period for new customers	210 days
Minimum threshold period for existing customers	210 days