Loans and Leases - Schedule of Credit Quality Indicator, Loan Class and Year of Origination the Amortized Cost Basis of Loans And Leases (Details) $ in Millions	Jun. 30, 2022 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	$ 48,537
Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	43,836
Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,701
Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	41,180
Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,697
Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,716
Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	940
Substandard | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4
2022
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	6,317
2022 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,843
2022 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	474
2022 | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,843
2022 | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	474
2021
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	10,060
2021 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,291
2021 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	769
2021 | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,291
2021 | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	769
2020
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,536
2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,005
2020 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	531
2020 | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	8,825
2020 | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	531
2020 | Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	142
2020 | Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	38
2019
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	6,023
2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,557
2019 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	466
2019 | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,060
2019 | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	464
2019 | Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	346
2019 | Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	151
2019 | Substandard | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2
2018
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,553
2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,477
2018 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	76
2018 | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,998
2018 | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	75
2018 | Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	276
2018 | Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	203
2018 | Substandard | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1
Prior to 2018
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,910
Prior to 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,645
Prior to 2018 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	265
Prior to 2018 | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	8,145
Prior to 2018 | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	264
Prior to 2018 | Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	952
Prior to 2018 | Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	548
Prior to 2018 | Substandard | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1
Revolving Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2,138
Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	18
Revolving Loans | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2,120
Revolving Loans | Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	18
Revolving Loans | Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	$ 2,120