Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions			12 Months Ended
	Apr. 21, 2009	Mar. 28, 2007	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Apr. 13, 2021	Dec. 31, 2019
Employee Stock Ownership Plan (ESOP) Disclosures
Share available for future issuance (in shares)			36,800,000
The Bancorp's total overhang (potential dilution from share-based compensation) (as a percent)			8.00%
SARs, RSAs, RSUs, stock options and PSAs outstanding as a percentage of issued shares			3.00%
Annual return on tangible common equity performance hurdle (as a percent)			2.00%
Stock-based compensation expense			$ 165	$ 120	$ 123
Income tax benefit related to stock-based compensation expense			$ 34	$ 25	$ 26
Options granted (in shares)			0	0	0
Expected dividend yield			3.40%	3.20%	3.20%
Expected life (in years)			7 years	7 years	7 years
Intrinsic value of stock options exercised			$ 2	$ 7	$ 3
Cash received from stock options exercised			1	6	5
Tax benefit from exercised stock options			0	$ 1	$ 1
Aggregate intrinsic value of exercisable options			$ 3
1993 Stock Purchase Plan
Employee Stock Ownership Plan (ESOP) Disclosures
Available for future issuance (in shares)			2,700,000
Additional share issued (in shares)	12,000,000	1,500,000
2021 Incentive Compensation Plan
Employee Stock Ownership Plan (ESOP) Disclosures
Stock authorized for issuance (in shares)						50,000,000
SARs
Employee Stock Ownership Plan (ESOP) Disclosures
Award term			10 years
Award vesting period			3 years
Award performance period			3 years
Stock-based compensation expense			$ 2
Weighted-average grant-date fair value per share (in dollars per share)			$ 12.76	$ 7.84	$ 6.82
Total grant-date fair value			$ 2	$ 8	$ 15
Shares granted (in shares)			304,000	322,000	365,000
Number of shares/units outstanding (in shares)			9,112,000	11,185,000	19,258,000		21,449,000
Weighted-average period over which expense is expected to be recognized			1 year 9 months 18 days
Exercisable, weighted- average remaining contractual life (in years)			2 years 9 months 18 days
SARs | Range 4 [Member]
Employee Stock Ownership Plan (ESOP) Disclosures
Number of shares/units outstanding (in shares)			250,000
Exercisable, weighted- average remaining contractual life (in years)			0 years
RSAs and RSUs | Tranche One
Employee Stock Ownership Plan (ESOP) Disclosures
Award vesting period			3 years
Award performance period			3 years
RSAs and RSUs | Tranche Two
Employee Stock Ownership Plan (ESOP) Disclosures
Award vesting period			4 years
Award performance period			4 years
Stock options
Employee Stock Ownership Plan (ESOP) Disclosures
Award term			10 years
Stock options | Tranche One
Employee Stock Ownership Plan (ESOP) Disclosures
Award vesting period			3 years
Stock options | Tranche Two
Employee Stock Ownership Plan (ESOP) Disclosures
Award vesting period			4 years
Performance shares
Employee Stock Ownership Plan (ESOP) Disclosures
Award vesting period			3 years
Award performance period			3 years
Percentage of shares that will be forfeited			33.33%
Weighted-average grant-date fair value per share (in dollars per share)			$ 47.03	$ 33.53	$ 29.64
Shares granted (in shares)			288,000	251,000	280,000
Performance shares | Minimum
Employee Stock Ownership Plan (ESOP) Disclosures
Stock award granted (in shares)			0
Performance shares | Maximum
Employee Stock Ownership Plan (ESOP) Disclosures
Stock award granted (in shares)			1,200,000
Restricted Stock Units (RSUs)
Employee Stock Ownership Plan (ESOP) Disclosures
Stock-based compensation expense			$ 183
Total grant-date fair value			$ 110	$ 99	$ 107
Shares granted (in shares)			4,682,000	4,186,000	4,177,000
Number of shares/units outstanding (in shares)			9,906,000	9,487,000	9,466,000		10,006,000
Weighted-average period over which expense is expected to be recognized			2 years 4 months 24 days
Employee Stock
Employee Stock Ownership Plan (ESOP) Disclosures
Stock-based compensation expense			$ 2	$ 2	$ 2
Match on qualifying employees purchase of shares of the Bancorp's common stock (as a percent)			15.00%
Stock purchased by plan participants (in shares)			520,000	470,000	884,000