v3.22.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Taxes [Abstract]      
Investment Tax Credit $ 64 $ 94 $ 59
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 21.00% 21.00% 21.00%
Tax Adjustments, Settlements, and Unusual Provisions $ 139 $ 133 $ 131
Deferred Tax Assets, Net of Valuation Allowance 603 785  
Deferred Tax Assets, Valuation Allowance (29) (31)  
Decrease in Unrecognized Tax Benefits is Reasonably Possible 1    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 7 9 $ 34
State net operating carryforwards, net of federal tax effect $ 53 [1] $ 58  
[1] Federal and state deferred tax assets of $21 million and $1 million, respectively, related to net operating losses were acquired as part of the Company’s April 2020 equipment finance acquisition and the December 2021 commercial real estate lender acquisition. While the federal and certain state net operating losses may be subject to certain annual utilization limits, the Company has determined that a valuation allowance is not necessary based on projected annual limitation and the length of the net operating loss carryover period.