The Charles Schwab Corporation (SCHW) 10-Q 8 May 20 2020 Q1 Quarterly report Financial data

COVER PAGE

COVER PAGE - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	1-9700
Entity Registrant Name	SCHWAB CHARLES CORP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3025021
Entity Address, Address Line One	211 Main Street
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94105
City Area Code	415
Local Phone Number	667-7000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,287,412,923
Entity Central Index Key	0000316709
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Common Stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Stock – $.01 par value per share
Trading Symbol	SCHW
Security Exchange Name	NYSE
Series C Preferred Stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/40th ownership interest in a share of 6.00% Non-Cumulative Preferred Stock, Series C
Trading Symbol	SCHW PrC
Security Exchange Name	NYSE
Series D Preferred Stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing a 1/40th ownership interest in a share of 5.95% Non-Cumulative Preferred Stock, Series D
Trading Symbol	SCHW PrD
Security Exchange Name	NYSE

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Net Revenues
Interest revenue		$ 1,708	$ 1,998
Interest expense		(136)	(317)
Net interest revenue		1,572	1,681
Other (1)	[1]	30	70
Total net revenues		2,617	2,723
Expenses Excluding Interest
Compensation and benefits		897	850
Professional services		182	170
Occupancy and equipment		142	131
Advertising and market development		67	69
Communications		75	62
Depreciation and amortization		96	83
Regulatory fees and assessments		34	32
Other		77	62
Total expenses excluding interest		1,570	1,459
Income before taxes on income		1,047	1,264
Taxes on income		252	300
Net Income		795	964
Preferred stock dividends and other	[2]	38	39
Net Income Available to Common Stockholders		$ 757	$ 925
Weighted-Average Common Shares Outstanding:
Basic (shares)		1,287	1,333
Diluted (shares)	[3]	1,294	1,344
Earnings Per Common Shares Outstanding:
Basic (USD per share)		$ 0.59	$ 0.69
Diluted (USD per share)	[3]	$ 0.58	$ 0.69
Antidilutive stock options and restricted stock awards excluded from the calculation of diluted EPS (in shares)		19	16
Asset management and administration fees [Member]
Net Revenues
Asset management and administration fees and Trading revenue		$ 827	$ 755
Trading revenue [Member]
Net Revenues
Asset management and administration fees and Trading revenue	[1]	$ 188	$ 217
[1]	In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.
[2]	Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units.
[3]	Antidilutive stock options and restricted stock units excluded from the calculation of diluted EPS totaled 19 million and 16 million shares for the first quarters of 2020 and 2019 , respectively.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 795	$ 964
Change in net unrealized gain (loss) on available for sale securities:
Net unrealized gain (loss)	5,151	227
Other reclassifications included in other revenue	0	(1)
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale	0	12
Other comprehensive income (loss), before tax	5,151	238
Income tax effect	(1,244)	(57)
Other comprehensive income (loss), net of tax	3,907	181
Comprehensive Income	$ 4,702	$ 1,145

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020		Dec. 31, 2019
Assets
Cash and cash equivalents	$ 68,458	[1]	$ 29,345
Cash and investments segregated and on deposit for regulatory purposes (including resale agreements of $17,044 at March 31, 2020 and $9,028 at December 31, 2019)	34,309		20,483
Receivables from brokerage clients — net	19,001		21,767
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	221,232		61,422
Held to maturity securities	0		134,706
Bank loans — net	19,521		18,212
Equipment, office facilities, and property — net	2,291		2,128
Goodwill	1,227		1,227
Other assets	4,740		4,715
Total assets	370,779		294,005
Liabilities and Stockholders’ Equity
Bank deposits	277,477		220,094
Payables to brokerage clients	49,251		39,220
Accrued expenses and other liabilities	9,259		5,516
Long-term debt	8,522		7,430
Total liabilities	344,509		272,260
Stockholders’ equity:
Preferred stock — $.01 par value per share; aggregate liquidation preference of $2,850	2,793		2,793
Common stock — 3 billion shares authorized; $.01 par value per share; 1,487,543,446 shares issued	15		15
Additional paid-in capital	4,714		4,656
Retained earnings	20,487		19,960
Treasury stock, at cost — 200,222,755 shares at March 31, 2020 and 201,818,100 shares at December 31, 2019	(5,734)		(5,767)
Accumulated other comprehensive income (loss)	3,995		88
Total stockholders’ equity	26,270		21,745
Total liabilities and stockholders’ equity	$ 370,779		$ 294,005
[1]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 14.

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Cash and investments segregated and on deposit for regulatory purposes, resale agreements	$ 17,044	$ 9,028
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Available-for-sale, amortized cost	$ 215,873	$ 61,155
Preferred stock, aggregate liquidation preference	$ 2,850	$ 2,850
Common stock, shares authorized (shares)	3,000,000,000	3,000,000,000
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares issued (shares)	1,487,543,446	1,487,543,446
Treasury stock (shares)	200,222,755	201,818,100

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, at cost [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2018	$ 20,670	$ 2,793	$ 15	$ 4,499	$ 17,329	$ (3,714)	$ (252)
Beginning balance (shares) at Dec. 31, 2018			1,488
Increase (Decrease) in Stockholders' Equity
Net income	964				964
Other comprehensive income (loss), net of tax	181						181
Dividends declared on preferred stock	(34)				(34)
Dividends declared on common stock	(228)				(228)
Stock option exercises and other	26			(14)		40
Share-based compensation	53			53
Other	(7)			10	(14)	(3)
Ending balance (shares) at Mar. 31, 2019			1,488
Ending balance at Mar. 31, 2019	21,625	2,793	$ 15	4,548	18,017	(3,677)	(71)
Beginning balance at Dec. 31, 2019	21,745	2,793	$ 15	4,656	19,960	(5,767)	88
Beginning balance (shares) at Dec. 31, 2019			1,488
Increase (Decrease) in Stockholders' Equity
Net income	795				795
Other comprehensive income (loss), net of tax	3,907						3,907
Dividends declared on preferred stock	(34)				(34)
Dividends declared on common stock	(233)				(233)
Stock option exercises and other	23			(8)		31
Share-based compensation	56			56
Other	11			10	(1)	2
Ending balance (shares) at Mar. 31, 2020			1,488
Ending balance at Mar. 31, 2020	$ 26,270	$ 2,793	$ 15	$ 4,714	$ 20,487	$ (5,734)	$ 3,995

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (USD per share)	$ 0.18	$ 0.17

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Cash Flows from Operating Activities
Net income		$ 795	$ 964
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Share-based compensation		56	56
Depreciation and amortization		96	83
Premium amortization, net, on available for sale and held to maturity securities		190	68
Other		83	33
Net change in:
Investments segregated and on deposit for regulatory purposes		(3,810)	(1,520)
Receivables from brokerage clients		2,763	1,121
Other assets		187	(58)
Payables to brokerage clients		10,031	(3,025)
Accrued expenses and other liabilities		(273)	(317)
Net cash provided by (used for) operating activities		10,118	(2,595)
Cash Flows from Investing Activities
Purchases of available for sale securities		(27,769)	(1,132)
Proceeds from sales of available for sale securities		69	10,652
Principal payments on available for sale securities		10,191	6,039
Purchases of held to maturity securities		0	(1,235)
Principal payments on held to maturity securities		0	3,996
Net change in bank loans		(1,327)
Net change in bank loans			81
Purchases of equipment, office facilities, and property		(156)	(139)
Purchases of Federal Home Loan Bank stock		0	(2)
Purchases of Federal Reserve stock		(182)	0
Other investing activities		(22)	25
Net cash provided by (used for) investing activities		(19,196)	18,285
Cash Flows from Financing Activities
Net change in bank deposits		57,383	(11,969)
Issuance of long-term debt		1,089	0
Dividends paid		(281)	(276)
Proceeds from stock options exercised		23	26
Other financing activities		(6)	(10)
Net cash provided by (used for) financing activities		58,208	(12,229)
Increase (Decrease) in Cash and Cash Equivalents, including Amounts Restricted		49,130	3,461
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Period		45,577	38,227
Cash and Cash Equivalents, including Amounts Restricted at End of Period	[1]	94,707	41,688
Non-cash investing activity:
Securities transferred from held to maturity to available for sale, at fair value		136,099	8,771
Securities purchased during the period but settled after period end		2,634	0
Additions of equipment, office facilities, and property		94	42
Non-cash financing activity:
Extinguishment of finance lease obligation through an assignment agreement		0	52
Cash paid during the period for:
Interest		169	336
Income taxes		20	23
Amounts included in the measurement of lease liabilities		37	32
Leased assets obtained in exchange for new operating lease liabilities		$ 64	$ 28
[1]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 14.

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions		Mar. 31, 2020	Mar. 31, 2019
Reconciliation of cash, cash equivalents and amounts reported within the balance sheet
Cash and cash equivalents	[1]	$ 68,458	$ 32,558
Restricted cash and cash equivalents amounts included in cash and investments segregated and on deposit for regulatory purposes	[1]	26,249	9,130
Total cash and cash equivalents, including amounts restricted shown in the statement of cash flows	[1]	$ 94,707	$ 41,688
[1]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 14.

Introduction and Basis of Prese

Introduction and Basis of Presentation	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Introduction and Basis of Presentation	Introduction and Basis of Presentation The Charles Schwab Corporation (CSC) is a savings and loan holding company and engages, through its subsidiaries, in wealth management, securities brokerage, banking, asset management, custody, and financial advisory services. Principal business subsidiaries of CSC include the following: • Charles Schwab & Co., Inc. (CS&Co), a securities broker-dealer; • Charles Schwab Bank, SSB (CSB), our principal banking entity; and • Charles Schwab Investment Management, Inc. (CSIM), the investment advisor for Schwab’s proprietary mutual funds (Schwab Funds ® ) and for Schwab’s exchange-traded funds (Schwab ETFs™). Unless otherwise indicated, the terms “Schwab,” “the Company,” “we,” “us,” or “our” mean CSC together with its consolidated subsidiaries. These unaudited condensed consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the U.S. (GAAP), which require management to make certain estimates and assumptions that affect the reported amounts in the accompanying financial statements and in the related disclosures. These estimates are based on information available as of the date of the condensed consolidated financial statements. While management makes its best judgment, actual amounts or results could differ from these estimates. In the opinion of management, all normal, recurring adjustments have been included for a fair statement of this interim financial information. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto, included in Schwab’s 2019 Form 10-K. Reclassifications: Certain prior period amounts have been reclassified to conform to the current period presentation. Beginning in the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue in the condensed consolidated statements of income. Prior period amounts have been reclassified to reflect this change. The significant accounting policies are included in Note 2 in the 2019 Form 10-K. There have been no significant changes to these accounting policies during the first three months of 2020 , except as described in Note 2 below.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Summary of Significant Accounting Policies	Cash and investments segregated and on deposit for regulatory purposes Pursuant to Rule 15c3-3 of the Securities Exchange Act of 1934 and other applicable regulations, Schwab maintains cash or qualified securities in segregated reserve accounts for the exclusive benefit of clients. Cash and investments segregated and on deposit for regulatory purposes include resale agreements, which are collateralized by U.S. Government and agency securities. Resale agreements are accounted for as collateralized financing transactions that are recorded at their contractual amounts plus accrued interest. The Company obtains collateral with a market value equal to or in excess of the principal amount loaned and accrued interest under resale agreements. Collateral is valued daily by the Company, with additional collateral obtained to ensure full collateralization. Cash and investments segregated also include certificates of deposit and U.S. Government securities. Certificates of deposit and U.S. Government securities are recorded at fair value. Schwab applies the practical expedient based on collateral maintenance provisions under Accounting Standards Codification (ASC) 326, Financial Instruments – Credit Losses , in estimating an allowance for credit losses for resale agreements. This practical expedient can be applied for financial assets with collateral maintenance provisions requiring the borrower to continually adjust the amount of the collateral securing the financial assets as a result of fair value changes in the collateral. In accordance with the practical expedient, when the Company reasonably expects that borrowers (or counterparties, as applicable) will replenish the collateral as required, there is no expectation of credit losses when the collateral’s fair value is greater than the amortized cost of the financial asset. If the amortized cost exceeds the fair value of collateral, then credit losses are estimated only on the unsecured portion. Receivables from brokerage clients Receivables from brokerage clients include margin loans to securities brokerage clients and other trading receivables from clients. Margin loans are collateralized by client securities and are carried at the amount receivable, net of an allowance for credit losses. Collateral is required to be maintained at specified minimum levels at all times. The Company monitors margin levels and requires clients to provide additional collateral, or reduce margin positions, to meet minimum collateral requirements if the fair value of the collateral changes. Schwab applies the practical expedient based on collateral maintenance provisions in estimating an allowance for credit losses for margin loans. An allowance for credit losses on unsecured or partially secured receivables from brokerage clients is estimated based on the aging of those receivables. Unsecured balances due to confirmed fraud are reserved immediately. The Company’s policy is to charge off any delinquent margin loans, including the accrued interest on such loans, no later than at 90 days past due. Accrued interest charged off is recognized as credit loss expense and is included in other expenses in the condensed consolidated statements of income. Clients with margin loans have agreed to allow Schwab to pledge collateralized securities in accordance with federal regulations. The collateral is not reflected in the consolidated financial statements. The allowance for credit losses for receivables from brokerage clients and related activity were immaterial for all periods presented. AFS investment securities AFS investment securities are recorded at fair value and unrealized gains and losses, other than losses related to credit factors, are reported, net of taxes, in AOCI included in stockholders’ equity. Realized gains and losses from sales of AFS investment securities are determined on a specific identification basis and are included in other revenue. An AFS investment security is impaired if the fair value of the security is less than its amortized cost basis. Management evaluates AFS debt investment securities with unrealized losses to determine whether the security impairment has resulted from a credit loss or other factors. This evaluation is performed quarterly on an individual security basis. The evaluation of whether credit loss exists is inherently judgmental. This evaluation considers multiple factors including: the financial condition of the issuer; the payment structure of the security; external credit ratings; our internal credit ratings; the security’s market implied credit spread; for asset-backed securities, the amount of credit support provided by the structure of the security to absorb credit losses on the underlying collateral; recent events specific to the issuer and the issuer’s industry; and whether all scheduled principal and interest payments have been received. If management determines that the impairment of an AFS debt investment security (or a portion of the impairment) is related to credit losses, an allowance for credit losses will be recorded for that security through a charge to earnings. The allowance for credit losses is measured as the difference between the amortized cost and the present value of expected cash flows and is limited to the difference between amortized cost and the fair value of the security. The Company estimates credit losses on a discounted cash flow basis using the security’s effective interest rate. Changes in the allowance for credit losses will be recorded through earnings in the period of the change. If it is determined that the Company intends to sell the impaired security or if it is more likely than not that the Company will be required to sell such security before any anticipated recovery of the amortized cost basis, any allowance for credit losses of that security will be written off and the amortized cost basis of the security will be written down to fair value with any incremental impairment recorded through earnings. The Company excludes accrued interest from the fair value and the amortized cost basis of the AFS debt investment securities for the purposes of identifying and measuring impairment of the securities. AFS debt investment securities are placed on nonaccrual status on a timely basis and any accrued interest receivable is reversed through interest income. Securities borrowed and securities loaned Securities borrowed transactions require Schwab to deliver cash to the lender in exchange for securities; the receivables from these transactions are included in other assets on the condensed consolidated balance sheets. For securities loaned, Schwab receives collateral in the form of cash in an amount equal to or greater than the market value of securities loaned; the payables from these transactions are included in accrued expenses and other liabilities on the condensed consolidated balance sheets. The market value of securities borrowed and loaned are monitored, with additional collateral obtained or refunded to ensure full collateralization. Fees received or paid are recorded in interest revenue or interest expense. Schwab applies the practical expedient based on collateral maintenance provisions in estimating an allowance for credit losses for securities borrowed receivables. Bank loans and related allowance for credit losses Bank loans are recorded at their contractual principal amounts and include unamortized direct origination costs or net purchase discounts or premiums. Direct origination costs and premiums and discounts are recognized in interest revenue using the effective interest method over the contractual life of the loan and are adjusted for actual prepayments. Additionally, management estimates an allowance for credit losses, which is deducted from the amortized cost basis of loans to arrive at the amount expected to be collected. The bank loan portfolio includes four loan types: First Mortgages, HELOCs, pledged asset lines (PALs), and other loans. We use these segments when developing and documenting our methodology for determining the allowance for credit losses. Schwab records an allowance for credit losses through a charge to earnings based on our estimate of current expected credit losses for the existing portfolio. We review the allowance for credit losses quarterly, taking into consideration current economic conditions, reasonable and supportable forecasts, the composition of the existing loan portfolio, past loss experience, and any other risks inherent in the portfolio to ensure that the allowance for credit losses is maintained at an appropriate level. PALs are collateralized by marketable securities with liquid markets. Credit lines are over-collateralized and borrowers are required to maintain collateral at specified levels at all times. The required collateral levels are determined based on the type of security pledged. Additionally, collateral market value is monitored on a daily basis and a borrower’s credit line may be reduced or collateral may be liquidated if the collateral is in danger of falling below specified levels. As such, the credit loss inherent within this portfolio is limited. Schwab applies the practical expedient based on collateral maintenance provisions in estimating an allowance for credit losses for PALs. The methodology to establish an allowance for credit losses for First Mortgages and HELOCs utilizes statistical models that estimate prepayments, defaults, and expected losses for these loan segments based on predicted behavior of individual loans within the segments. The methodology also evaluates concentrations in the loan types, including loan products within those types, year of origination, and geographical distribution of collateral. Expected credit losses are forecast using a loan-level simulation of the delinquency status of the loans over the term of the loans. The simulation starts with the current relevant risk indicators, including the current delinquent status of each loan, the estimated current LTV ratio (Estimated Current LTV) of each loan, the term and structure of each loan, current key interest rates including U.S. Treasury and LIBOR rates, and borrower FICO scores. The more significant variables in the simulation include delinquency roll rates, loss severity, housing prices, interest rates, and unemployment rate. Delinquency roll rates (i.e., the rates at which loans transition through delinquency stages and ultimately result in a loss) are estimated from our historical loss experience adjusted for current trends and market information, which includes current and forecast conditions. Loss severity (i.e., loss given default) estimates are based on our historical loss experience and market trends, both current and forecast. The loss severity estimate used in the allowance for credit loss methodology for HELOC loans is higher than that used in the methodology for First Mortgages. Housing price trends are derived from historical home price indices and econometric forecasts of future home values. Factors affecting the home price index include housing inventory, unemployment, interest rates, and inflation expectations. Interest rate projections are based on the current term structure of interest rates and historical volatilities to project various possible future interest rate paths. The unemployment rate forecast is typically based on the recent consensus of regularly published economic surveys. Linear interpolation is applied to revert to long-term trends after the reasonable and supportable forecast period. The methodology described above results in loss factors that are applied to the amortized cost basis of loans, exclusive of accrued interest receivable, to determine the allowance for credit losses for First Mortgages and HELOCs. Management also estimates a liability for expected credit losses on the Company’s commitments to extend credit related to unused HELOCs and commitments to purchase first mortgages. See Note 9 for additional information on these commitments. The liability is calculated by applying the loss factors described above to the commitments expected to be funded and is included in accrued expenses and other liabilities on the condensed consolidated balance sheets. The liability for expected credit losses on these commitments and related activity were immaterial for all periods presented. Schwab considers loan modifications in which it makes an economic concession to a borrower experiencing financial difficulty to be troubled debt restructurings (TDRs). Nonaccrual and Nonperforming loans First Mortgages, HELOCs, PALs, and other loans are considered past due when a payment is due and unpaid for 30 days. Loans are placed on nonaccrual status upon becoming 90 days past due as to interest or principal (unless the loans are well-secured and in the process of collection), or when the full timely collection of interest or principal becomes uncertain, including loans to borrowers who have filed for bankruptcy. HELOC loans secured by a second lien are placed on non-accrual status if the associated first lien is 90 days or more delinquent, regardless of the payment status of the HELOC. When a loan is placed on nonaccrual status, the accrued interest receivable is written off by reversing interest income and the loan is accounted for on the cash or cost recovery method until qualifying for return to accrual status. Generally, a nonaccrual loan may be returned to accrual status when all delinquent interest and principal is repaid and the borrower demonstrates a sustained period of performance, or when the loan is both well-secured and in the process of collection and collectability is no longer doubtful. Loans on nonaccrual status and other real estate owned are considered nonperforming assets. Loan Charge-Offs The Company charges off a loan in the period that it is deemed uncollectible and records a reduction in the allowance for credit losses and the loan balance. Our charge-off policy for First Mortgage and HELOC loans is to assess the value of the property when the loan has been delinquent for 180 days or has been discharged in bankruptcy proceedings, regardless of whether the property is in foreclosure, and charge-off the amount of the loan balance in excess of the estimated current value of the underlying property less estimated costs to sell. The Company’s policy for PALs is to charge off any delinquent loans no later than at 90 days past due. New Accounting Standards Adoption of New Accounting Standards Standard Description Date of Adoption Effects on the Financial Statements or Other Significant Matters Accounting Standards Update (ASU) 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” Provides guidance for recognizing impairment of most debt instruments measured at amortized cost, including loans and HTM debt securities. Requires estimating current expected credit losses (CECL) over the remaining life of an instrument or a portfolio of instruments with similar risk characteristics based on relevant information about past events, current conditions, and reasonable forecasts. The initial estimate of, and the subsequent changes in, CECL will be recognized as credit loss expense through current earnings and will be reflected as an allowance for credit losses offsetting the carrying value of the financial instrument(s) on the balance sheet. Amends the other-than-temporary impairment (OTTI) model for AFS debt securities by requiring the use of an allowance, rather than directly reducing the carrying value of the security, and eliminating consideration of the length of time such security has been in an unrealized loss position as a factor in concluding whether a credit loss exists. Adoption requires modified retrospective transition through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the entity applies the new guidance except that a prospective transition is required for AFS debt securities for which an OTTI has been recognized prior to the effective date. January 1, 2020 The Company adopted CECL as of January 1, 2020 using the modified retrospective method. The adoption of CECL resulted in an immaterial increase in the Company’s allowance for credit losses and an increase in the liability for expected credit losses on commitments to extend credit, both primarily related to First Mortgages and HELOCs. The adoption impact was recorded as an adjustment to retained earnings as of the date of adoption. ASU 2018-15, “Intangibles– Goodwill and Other–Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force)” Aligns the criteria for capitalizing implementation costs for cloud computing arrangements (CCA) that are service contracts with internal-use software that is developed or purchased and CCAs that include an internal-use software license. This guidance requires that the capitalized implementation costs be recognized over the period of the CCA service contract, subject to impairment evaluation on an ongoing basis. The guidance prescribes the balance sheet, income statement, and statement of cash flow classification of the capitalized implementation costs and related amortization expense, and requires additional quantitative and qualitative disclosures. Adoption provides for retrospective or prospective application to all implementation costs incurred after the date of adoption. January 1, 2020 The Company adopted this guidance prospectively on January 1, 2020. As such, adoption had no impact on the Company’s financial statements. Historically, Schwab has expensed implementation costs as they are incurred for CCAs that are service contracts. Therefore, adopting this guidance will change the Company’s accounting treatment for these types of implementation costs going forward. New Accounting Standards Not Yet Adopted Standard Description Required Date of Adoption Effects on the Financial Statements or Other Significant Matters ASU 2020-4, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” Provides optional expedients and exceptions for applying existing accounting guidance to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met, including simplifying accounting analyses for contract modifications. This guidance only applies to the items listed above if they reference LIBOR or another reference rate expected to be discontinued because of reference rate reform and only for a limited period of time. When elected, the optional expedients for contract modifications must be applied consistently for all eligible contracts or eligible transactions subject to the same accounting guidance that would have otherwise been applied. Once elected, the amendments must be applied prospectively. N/A. Effective March 12, 2020 through December 31, 2022 The Company is evaluating the expedients and exceptions provided by this guidance. The elected amendments will be applied prospectively and the Company is currently evaluating the potential impacts on its consolidated financial statements.

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Disaggregated Revenue Disaggregation of Schwab’s revenue by major source is as follows: Three Months Ended 2020 2019 Net interest revenue Interest revenue $ 1,708 $ 1,998 Interest expense (136 ) (317 ) Net interest revenue 1,572 1,681 Asset management and administration fees Mutual funds, ETFs, and CTFs 452 414 Advice solutions 312 278 Other 63 63 Asset management and administration fees 827 755 Trading revenue Commissions 113 163 Principal transactions 20 22 Order flow revenue (1) 55 32 Trading revenue (1) 188 217 Other (1) 30 70 Total net revenues $ 2,617 $ 2,723 (1) In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change. For a summary of revenue provided by our reportable segments, see Note 15. The recognition of revenue is not impacted by the operating segment in which revenue is generated. Contract balances Receivables from contracts with customers within the scope of ASC 606, Revenue From Contracts With Customers (ASC 606) were $588 million at March 31, 2020 and $356 million at December 31, 2019 and were recorded in other assets on the condensed consolidated balance sheets. Schwab did not have any other significant contract assets or contract liability balances as of March 31, 2020 or December 31, 2019. Unsatisfied performance obligations

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities are as follows: March 31, 2020 Amortized Gross Gross Fair Available for sale securities U.S. agency mortgage-backed securities $ 173,812 $ 6,007 $ 224 $ 179,595 Asset-backed securities (1) 23,077 49 645 22,481 Corporate debt securities (2) 11,192 136 106 11,222 U.S. Treasury securities 3,616 48 — 3,664 U.S. state and municipal securities 1,493 96 11 1,578 Non-agency commercial mortgage-backed securities 1,215 16 5 1,226 Certificates of deposit 1,000 3 5 998 Commercial paper (2,3) 397 — 1 396 Foreign government agency securities 50 1 — 51 Other 21 — — 21 Total available for sale securities $ 215,873 $ 6,356 $ 997 $ 221,232 December 31, 2019 Available for sale securities U.S. agency mortgage-backed securities $ 45,964 $ 312 $ 121 $ 46,155 Corporate debt securities (2) 5,427 57 — 5,484 Asset-backed securities (1) 4,970 30 13 4,987 U.S. Treasury securities 3,387 3 6 3,384 Certificates of deposit 1,000 4 — 1,004 Commercial paper (2,3) 394 1 — 395 Non-agency commercial mortgage-backed securities 13 — — 13 Total available for sale securities $ 61,155 $ 407 $ 140 $ 61,422 Held to maturity securities U.S. agency mortgage-backed securities $ 109,325 $ 1,521 $ 280 $ 110,566 Asset-backed securities (1) 17,806 50 85 17,771 Corporate debt securities (2) 4,661 57 — 4,718 U.S. state and municipal securities 1,301 103 — 1,404 Non-agency commercial mortgage-backed securities 1,119 22 — 1,141 U.S. Treasury securities 223 5 — 228 Certificates of deposit 200 — — 200 Foreign government agency securities 50 — — 50 Other 21 — — 21 Total held to maturity securities $ 134,706 $ 1,758 $ 365 $ 136,099 (1) Approximately 42% and 43% of asset-backed securities held as of March 31, 2020 and December 31, 2019 , respectively, were Federal Family Education Loan Program Asset-Backed Securities. Asset-backed securities collateralized by credit card receivables represented approximately 43% and 42% of the asset-backed securities held as of March 31, 2020 and December 31, 2019 , respectively. (2) As of March 31, 2020 approximately 32% of the total AFS, and as of December 31, 2019 approximately 32% , of the total AFS and HTM investments in corporate debt securities and commercial paper were issued by institutions in the financial services industry. (3) Included in cash and cash equivalents on the condensed consolidated balance sheets, but excluded from this table is $4.1 billion and $2.5 billion of AFS commercial paper as of March 31, 2020 and December 31, 2019 , respectively. These holdings have maturities of three months or less and an aggregate market value equal to amortized cost. In October 2019, the Federal Reserve issued a final enhanced prudential standards rule, and the Federal Reserve, the Office of the Comptroller of the Currency, and the FDIC jointly issued a final regulatory capital and liquidity rule. With total consolidated assets of $294.0 billion at December 31, 2019, CSC is designated as a Category III firm pursuant to the framework established by the final rules. Accordingly, the Company opted to exclude AOCI from its regulatory capital as permitted by the regulatory capital and liquidity rule beginning January 1, 2020. In accordance with ASC 320 and as of January 1, 2020, the Company transferred all of its investment securities designated as HTM to the AFS category without tainting our intent to hold other debt securities to maturity. At the date of transfer, these securities had a total amortized cost of $134.7 billion and a total net unrealized gain of $1.4 billion . At March 31, 2020 , our banking subsidiaries had pledged securities with a fair value of $35.7 billion as collateral to secure borrowing capacity on secured credit facilities with the Federal Home Loan Bank (FHLB) (see Note 8). Our banking subsidiaries also pledge investment securities as collateral to secure borrowing capacity at the Federal Reserve discount window, and had pledged securities with a fair value of $8.2 billion as collateral for this facility at March 31, 2020 . The Company also pledges securities issued by federal agencies to secure certain trust deposits. The fair value of these pledged securities was $1.1 billion at March 31, 2020 . Securities with unrealized losses, aggregated by category and period of continuous unrealized loss, are as follows: Less than 12 months 12 months or longer Total March 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized Available for sale securities Asset-backed securities $ 15,852 $ 515 $ 2,638 $ 130 $ 18,490 $ 645 U.S. agency mortgage-backed securities 11,077 100 11,661 124 22,738 224 Corporate debt securities 4,835 106 — — 4,835 106 Certificates of deposit 795 5 — — 795 5 Non-agency commercial mortgage-backed securities 397 5 12 — 409 5 Commercial paper 396 1 — — 396 1 U.S. state and municipal securities 182 11 — — 182 11 Total $ 33,534 $ 743 $ 14,311 $ 254 $ 47,845 $ 997 December 31, 2019 Available for sale securities U.S. agency mortgage-backed securities $ 16,023 $ 94 $ 6,592 $ 27 $ 22,615 $ 121 Asset-backed securities 960 6 298 7 1,258 13 U.S. Treasury securities 510 — 1,243 6 1,753 6 Total $ 17,493 $ 100 $ 8,133 $ 40 $ 25,626 $ 140 Held to maturity securities U.S. agency mortgage-backed securities $ 16,183 $ 100 $ 18,910 $ 180 $ 35,093 $ 280 Asset-backed securities 7,507 63 2,898 22 10,405 85 Total $ 23,690 $ 163 $ 21,808 $ 202 $ 45,498 $ 365 Total securities with unrealized losses $ 41,183 $ 263 $ 29,941 $ 242 $ 71,124 $ 505 At March 31, 2020 , substantially all rated securities in the investment portfolios were investment grade. U.S. agency mortgage-backed securities do not have explicit credit ratings; however, management considers these to be of the highest credit quality and rating given the guarantee of principal and interest by the U.S. government or U.S. government-sponsored enterprises. The Company had $489 million of accrued interest receivable as of March 31, 2020 for AFS securities, and $471 million of accrued interest receivable for AFS and HTM securities as of December 31, 2019. These amounts are excluded from the amortized cost basis of AFS and HTM securities and included in other assets on the condensed consolidated balance sheets. There were no write-offs of accrued interest receivable on AFS securities during the three months ended March 31, 2020 , or write-offs of accrued interest receivable on AFS securities or HTM securities during the year ended December 31, 2019. Please refer to Note 2 for a description of management’s quarterly evaluation of AFS securities in unrealized loss positions. No amounts were recognized as credit loss expense and no securities were written down to fair value through earnings for the three months ended March 31, 2020 . None of the Company’s AFS securities held as of March 31, 2020 had an allowance for credit losses. No amounts were recognized as OTTI in earnings or other comprehensive income during the year ended December 31, 2019 , and as of December 31, 2019 , Schwab did not hold any securities on which OTTI was previously recognized. In the table below, mortgage-backed securities and other asset-backed securities have been allocated to maturity groupings based on final contractual maturities. As borrowers may have the right to call or prepay certain obligations underlying our investment securities, actual maturities may differ from the scheduled contractual maturities presented below. The maturities of AFS securities are as follows: March 31, 2020 Within After 1 year After 5 years After Total Available for sale securities U.S. agency mortgage-backed securities $ 1,158 $ 18,885 $ 51,687 $ 107,865 $ 179,595 Asset-backed securities 43 7,818 6,091 8,529 22,481 Corporate debt securities 2,410 7,612 1,200 — 11,222 U.S. Treasury securities 2,834 830 — — 3,664 U.S. state and municipal securities — 98 603 877 1,578 Non-agency commercial mortgage-backed securities — — — 1,226 1,226 Certificates of deposit 702 296 — — 998 Commercial paper 396 — — — 396 Foreign government agency securities — 51 — — 51 Other — — — 21 21 Total fair value $ 7,543 $ 35,590 $ 59,581 $ 118,518 $ 221,232 Total amortized cost $ 7,531 $ 35,024 $ 57,258 $ 116,060 $ 215,873 Proceeds and gross realized gains and losses from sales of AFS securities are as follows: Three Months Ended 2020 2019 Proceeds $ 69 $ 10,652 Gross realized gains — 3 Gross realized losses — 2

Bank Loans and Related Allowanc

Bank Loans and Related Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Bank Loans and Related Allowance for Credit Losses	Bank Loans and Related Allowance for Credit Losses The composition of bank loans and delinquency analysis by loan type is as follows: March 31, 2020 Current 30-59 days 60-89 days > 90 days past (3) Total past due Total Allowance Total First Mortgages (1,2) $ 12,751 $ 32 $ 3 $ 12 $ 47 $ 12,798 $ 21 $ 12,777 HELOCs (1,2) 1,055 2 1 9 12 1,067 4 1,063 Pledged asset lines 5,458 6 3 — 9 5,467 — 5,467 Other 216 — — 2 2 218 4 214 Total bank loans $ 19,480 $ 40 $ 7 $ 23 $ 70 $ 19,550 $ 29 $ 19,521 December 31, 2019 First Mortgages (1,2) $ 11,665 $ 24 $ 4 $ 11 $ 39 $ 11,704 $ 11 $ 11,693 HELOCs (1,2) 1,105 2 1 9 12 1,117 4 1,113 Pledged asset lines 5,202 4 — — 4 5,206 — 5,206 Other 201 — — 2 2 203 3 200 Total bank loans $ 18,173 $ 30 $ 5 $ 22 $ 57 $ 18,230 $ 18 $ 18,212 (1) First Mortgages and HELOCs include unamortized premiums and discounts and direct origination costs of $77 million and $74 million at March 31, 2020 and December 31, 2019 , respectively. (2) At March 31, 2020 and December 31, 2019 , 45% of the First Mortgage and HELOC portfolios were concentrated in California. These loans have performed in a manner consistent with the portfolio as a whole. (3) There were no loans accruing interest that were contractually 90 days or more past due at March 31, 2020 or December 31, 2019 . At March 31, 2020 , CSB had pledged $11.9 billion of First Mortgages and HELOCs as collateral to secure borrowing capacity on a secured credit facility with the FHLB (see Note 8). Changes in the allowance for credit losses on bank loans were as follows: March 31, 2020 March 31, 2019 Three Months Ended First Mortgages HELOCs Other Total (1) First Mortgages HELOCs Other Total (1) Balance at beginning of period $ 11 $ 4 $ 3 $ 18 $ 14 $ 5 $ 2 $ 21 Adoption of ASU 2016-13 1 — — 1 — — — — Charge-offs — — — — — — — — Recoveries — — — — — 1 — 1 Provision for credit losses 9 — 1 10 — (1 ) — (1 ) Balance at end of period $ 21 $ 4 $ 4 $ 29 $ 14 $ 5 $ 2 $ 21 Note: Substantially all of the bank loans were collectively evaluated for impairment at December 31, 2019 . (1) All PALs were fully collateralized by securities with fair values in excess of borrowings as of each period presented. While credit quality metrics and overall performance of the bank loans portfolio remain strong, a higher estimate of expected losses on First Mortgages in the first quarter of 2020 reflects management’s recognition of rapidly deteriorating economic conditions related to the impact of the COVID-19 pandemic and measures introduced by the federal, state, and local authorities to combat it. Management’s reasonable and supportable forecast period is 2020-2021 and includes a sharp increase in the unemployment rate in the second quarter of 2020 and a moderate decline in home prices through the remainder of 2020, with reversion to long-term trends after 2021. A summary of bank loan-related nonperforming assets and troubled debt restructurings is as follows: March 31, 2020 December 31, 2019 Nonaccrual loans (1) $ 23 $ 22 Other real estate owned (2) 1 1 Total nonperforming assets 24 23 Troubled debt restructurings 2 2 Total nonperforming assets and troubled debt restructurings $ 26 $ 25 (1) Nonaccrual loans include nonaccrual troubled debt restructurings. (2) Included in other assets on the condensed consolidated balance sheets. Credit Quality In addition to monitoring delinquency, Schwab monitors the credit quality of First Mortgages and HELOCs by stratifying the portfolios by the following: • Year of origination; • Borrower FICO scores at origination (Origination FICO); • Updated borrower FICO scores (Updated FICO); • Loan-to-value (LTV) ratios at origination (Origination LTV); and • Estimated current LTV ratios (Estimated Current LTV). Borrowers’ FICO scores are provided by an independent third-party credit reporting service and updated quarterly. The Origination LTV and Estimated Current LTV for a HELOC include any first lien mortgage outstanding on the same property at the time of the HELOC’s origination. The Estimated Current LTV for each loan is updated on a monthly basis by reference to a home price appreciation index. The credit quality indicators of the Company’s bank loan portfolio are detailed below: First Mortgages Amortized Cost Basis by Origination Year March 31, 2020 2020 2019 2018 2017 2016 pre-2016 Total First Mortgages Revolving HELOCs amortized cost basis HELOCs converted to term loans Total HELOCs Origination FICO <620 $ — $ — $ — $ — $ — $ 3 $ 3 $ — $ — $ — 620 – 679 11 14 6 14 19 20 84 2 4 6 680 – 739 222 480 193 278 271 369 1,813 108 100 208 ≥740 1,719 3,498 886 1,447 1,689 1,659 10,898 482 371 853 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Origination LTV ≤70% $ 1,578 $ 3,120 $ 771 $ 1,290 $ 1,669 $ 1,453 $ 9,881 $ 432 $ 331 $ 763 >70% – ≤90% 374 872 314 449 310 594 2,913 160 139 299 >90% – ≤100% — — — — — 4 4 — 5 5 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Weighted Average <620 $ 4 $ 5 $ 3 $ 5 $ 4 $ 24 $ 45 $ 5 $ 14 $ 19 620 – 679 14 49 23 23 21 54 184 14 21 35 680 – 739 192 385 135 184 177 264 1,337 84 75 159 ≥740 1,742 3,553 924 1,527 1,777 1,709 11,232 489 365 854 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Estimated Current LTV (1) ≤70% $ 1,578 $ 3,168 $ 884 $ 1,646 $ 1,956 $ 2,026 $ 11,258 $ 558 $ 450 $ 1,008 >70% – ≤90% 374 824 199 93 23 22 1,535 34 20 54 >90% – ≤100% — — 2 — — 2 4 — 3 3 >100% — — — — — 1 1 — 2 2 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Percent of Loans on 0.03 % 0.03 % 0.03 % 0.05 % 0.08 % 0.34 % 0.09 % 0.14 % 1.69 % 0.84 % (1) Represents the LTV for the full line of credit (drawn and undrawn) for revolving HELOCs. March 31, 2020 Balance Weighted Average Updated FICO Percent of Loans on Nonaccrual Status Pledged Asset Lines Weighted-Average LTV (1) =70% $ 5,467 769 — (1) Represents the LTV for the full line of credit (drawn and undrawn). First Mortgages Amortized Cost Basis by Origination Year December 31, 2019 2019 2018 2017 2016 pre-2016 Total First Mortgages Revolving HELOCs amortized cost basis HELOCs converted to term loans Total HELOCs Origination FICO <620 $ — $ — $ — $ — $ 3 $ 3 $ — $ — $ — 620 – 679 12 6 14 20 25 77 1 4 5 680 – 739 478 220 304 290 421 1,713 114 105 219 ≥740 3,512 1,058 1,593 1,839 1,909 9,911 496 397 893 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Origination LTV ≤70% $ 3,104 $ 906 $ 1,427 $ 1,812 $ 1,679 $ 8,928 $ 444 $ 354 $ 798 >70% – ≤90% 898 378 484 337 676 2,773 167 147 314 >90% – ≤100% — — — — 3 3 — 5 5 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Weighted Average <620 $ 5 $ 4 $ 5 $ 3 $ 25 $ 42 $ 6 $ 15 $ 21 620 – 679 45 36 32 26 68 207 18 22 40 680 – 739 474 153 213 199 307 1,346 92 80 172 ≥740 3,478 1,091 1,661 1,921 1,958 10,109 495 389 884 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Estimated Current LTV (1) ≤70% $ 3,125 $ 1,018 $ 1,790 $ 2,119 $ 2,330 $ 10,382 $ 578 $ 478 $ 1,056 >70% – ≤90% 877 265 121 30 27 1,320 33 23 56 >90% – ≤100% — 1 — — 1 2 — 3 3 >100% — — — — — — — 2 2 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Percent of Loans on 0.04 % 0.04 % 0.04 % 0.08 % 0.25 % 0.09 % 0.19 % 1.57 % 0.83 % (1) Represents the LTV for the full line of credit (drawn and undrawn) for revolving HELOCs. December 31, 2019 Balance Weighted Average Updated FICO Percent of Loans on Nonaccrual Status Pledged Asset Lines Weighted-Average LTV (1) =70% $ 5,206 766 — (1) Represents the LTV for the full line of credit (drawn and undrawn). At March 31, 2020 , First Mortgage loans of $11.4 billion had adjustable interest rates. Substantially all of these mortgages have initial fixed interest rates for three to ten years and interest rates that adjust annually thereafter. Approximately 25% of the balance of these mortgages consisted of loans with interest-only payment terms. The interest rates on approximately 72% of the balance of these interest-only loans are not scheduled to reset for three or more years. Schwab’s mortgage loans do not include interest terms described as temporary introductory rates below current market rates. At March 31, 2020 and December 31, 2019 , Schwab had $46 million of accrued interest on bank loans, which is excluded from the amortized cost basis of bank loans and included in other assets on the condensed consolidated balance sheets. The HELOC product has a 30 -year loan term with an initial draw period of ten years from the date of origination. After the initial draw period, the balance outstanding at such time is converted to a 20 -year amortizing loan. The interest rate during the initial draw period and the 20 -year amortizing period is a floating rate based on the prime rate plus a margin. The following table presents HELOCs converted to amortizing loans during each period presented: Three Months Ended March 31, 2020 March 31, 2019 HELOCs converted to amortizing loans $ 11 $ 25 The following table presents when current outstanding HELOCs will convert to amortizing loans: March 31, 2020 Balance Converted to an amortizing loan by period end $ 475 Within 1 year 43 > 1 year – 3 years 83 > 3 years – 5 years 138 > 5 years 328 Total $ 1,067 At March 31, 2020 , $867 million of the HELOC portfolio was secured by second liens on the associated properties. Second lien mortgage loans typically possess a higher degree of credit risk given the subordination to the first lien holder in the event of default. In addition to the credit monitoring activities described previously, Schwab also monitors credit risk by reviewing the delinquency status of the first lien loan on the associated property. At March 31, 2020 , the borrowers on approximately 53% of HELOC loan balances outstanding only paid the minimum amount due.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2020
Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities As of March 31, 2020 and December 31, 2019 , all of Schwab’s involvement with variable interest entities (VIEs) is through CSB’s Community Reinvestment Act (CRA)-related investments and most of those are related to Low-Income Housing Tax Credit (LIHTC) investments. As part of CSB’s community reinvestment initiatives, CSB invests in funds that make equity investments in multifamily affordable housing properties and receives tax credits and other tax benefits for these investments. Aggregate assets, liabilities and maximum exposure to loss The aggregate assets, liabilities, and maximum exposure to loss from those VIEs in which Schwab holds a variable interest, but is not the primary beneficiary, are summarized in the table below: March 31, 2020 December 31, 2019 Aggregate Aggregate Maximum Aggregate Aggregate Maximum LIHTC investments (1) $ 513 $ 261 $ 513 $ 516 $ 275 $ 516 Other CRA investments (2) 117 — 152 120 — 154 Total $ 630 $ 261 $ 665 $ 636 $ 275 $ 670 (1) Aggregate assets and aggregate liabilities are included in other assets and accrued expenses and other liabilities, respectively, on the condensed consolidated balance sheets. (2) Other CRA investments are recorded using either the adjusted cost method, equity method, held for investment loans at amortized cost, or as AFS securities. Aggregate assets are included in AFS securities, bank loans – net, or other assets on the condensed consolidated balance sheets. Schwab’s maximum exposure to loss would result from the loss of the investments, including any committed amounts. CSB’s funding of these remaining commitments is dependent upon the occurrence of certain conditions, and CSB expects to pay substantially all of these commitments between 2020 and 2023 . During the three months ended March 31, 2020 and year ended December 31, 2019

Bank Deposits

Bank Deposits	3 Months Ended
	Mar. 31, 2020
Banking and Thrift [Abstract]
Bank Deposits	Bank Deposits Bank deposits consist of interest-bearing and non-interest-bearing deposits as follows: March 31, 2020 December 31, 2019 Interest-bearing deposits: Deposits swept from brokerage accounts $ 257,370 $ 201,531 Checking 13,657 12,650 Savings and other 5,750 5,168 Total interest-bearing deposits 276,777 219,349 Non-interest-bearing deposits 700 745 Total bank deposits $ 277,477 $ 220,094

Borrowings

Borrowings	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Borrowings	Borrowings CSC’s Senior Notes are unsecured obligations. CSC may redeem some or all of the Senior Notes of each series prior to their maturity, subject to certain restrictions, and the payment of an applicable make-whole premium in certain instances. Interest is payable semi-annually for the fixed-rate Senior Notes and quarterly for the floating-rate Senior Notes. The following table lists long-term debt by instrument outstanding as of March 31, 2020 and December 31, 2019 . Date of Principal Amount Outstanding Issuance March 31, 2020 December 31, 2019 Fixed-rate Senior Notes: 4.450% due July 22, 2020 07/22/10 $ 700 $ 700 3.250% due May 21, 2021 05/22/18 600 600 3.225% due September 1, 2022 08/29/12 256 256 2.650% due January 25, 2023 12/07/17 800 800 3.550% due February 1, 2024 10/31/18 500 500 3.000% due March 10, 2025 03/10/15 375 375 4.200% due March 24, 2025 03/24/20 600 — 3.850% due May 21, 2025 05/22/18 750 750 3.450% due February 13, 2026 11/13/15 350 350 3.200% due March 2, 2027 03/02/17 650 650 3.200% due January 25, 2028 12/07/17 700 700 4.000% due February 1, 2029 10/31/18 600 600 3.250% due May 22, 2029 05/22/19 600 600 4.625% due March 22, 2030 03/24/20 500 — Floating-rate Senior Notes: Three-month LIBOR + 0.32% due May 21, 2021 05/22/18 600 600 Total Senior Notes 8,581 7,481 Unamortized discount — net (14 ) (14 ) Debt issuance costs (45 ) (37 ) Total long-term debt $ 8,522 $ 7,430 Annual maturities on long-term debt outstanding at March 31, 2020 are as follows: Maturities 2020 $ 700 2021 1,200 2022 256 2023 800 2024 500 Thereafter 5,125 Total maturities 8,581 Unamortized discount — net (14 ) Debt issuance costs (45 ) Total long-term debt $ 8,522 Short-term borrowings: Our banking subsidiaries maintain secured credit facilities with the FHLB. Amounts available under these facilities are dependent on the amount of our First Mortgages, HELOCs, and the fair value of certain of their investment securities that are pledged as collateral. As of March 31, 2020 and December 31, 2019 , the collateral pledged provided a total borrowing capacity of $43.6 billion and $34.2 billion , respectively, of which no amounts were outstanding at the end of either period. As a condition of the FHLB borrowings, we are required to hold FHLB stock, which was recorded in other assets on the condensed consolidated balance sheets. The investment in FHLB was $35 million at March 31, 2020 and December 31, 2019 . Additionally, our banking subsidiaries have access to funding through the Federal Reserve discount window. Amounts available are dependent upon the fair value of certain investment securities that are pledged as collateral. As of March 31, 2020 and December 31, 2019 , the collateral pledged provided total borrowing capacity of $8.2 billion and $8.5 billion , respectively, of which no amounts were outstanding at the end of either period. During the first quarter of 2020, CSB and CSPB became members of the Federal Reserve. As a condition of our Federal Reserve membership, we are required to hold Federal Reserve stock, which totaled $182 million at March 31, 2020.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Loan Portfolio: CSB provides a co-branded loan origination program for CSB clients (the Program) with Quicken Loans, Inc. (Quicken Loans ® ). Pursuant to the Program, Quicken Loans originates and services First Mortgages and HELOCs for CSB clients. Under the Program, CSB purchases certain First Mortgages and HELOCs that are originated by Quicken Loans. CSB purchased First Mortgages of $2.2 billion and $411 million during the first quarters of 2020 and 2019 , respectively. CSB purchased HELOCs with commitments of $107 million and $62 million during the first quarters of 2020 and 2019 , respectively. The Company’s commitments to extend credit on bank lines of credit and to purchase First Mortgages are as follows: March 31, 2020 December 31, 2019 Commitments to extend credit related to unused HELOCs, PALs, and other lines of credit $ 9,708 $ 10,753 Commitments to purchase First Mortgage loans 3,095 1,521 Total $ 12,803 $ 12,274 Guarantees and indemnifications: Schwab has clients that sell (i.e., write) listed option contracts that are cleared by the Options Clearing Corporation – a clearing house that establishes margin requirements on these transactions. We partially satisfy the margin requirements by arranging unsecured standby letter of credit agreements (LOCs), in favor of the Options Clearing Corporation, which are issued by several banks. At March 31, 2020 , the aggregate face amount of these LOCs totaled $20 million . There were no funds drawn under any of these LOCs at March 31, 2020 . In connection with its securities lending activities, Schwab is required to provide collateral to certain brokerage clients. The Company satisfies the collateral requirements by providing cash as collateral. Schwab also provides guarantees to securities clearing houses and exchanges under standard membership agreements, which require members to guarantee the performance of other members. Under the agreements, if another member becomes unable to satisfy its obligations to the clearing houses and exchanges, other members would be required to meet shortfalls. Schwab’s liability under these arrangements is not quantifiable and may exceed the cash and securities it has posted as collateral. At March 31, 2020 , amounts posted as collateral with such clearing houses and exchanges included $212 million of U.S. Treasury securities, which are included in other assets on the condensed consolidated balance sheet. The potential requirement for the Company to make payments under these arrangements is remote. Accordingly, no liability has been recognized for these guarantees. Acquisition of TD Ameritrade: On November 25, 2019, CSC announced a definitive agreement to acquire TD Ameritrade in an all-stock transaction. At the time of announcement, TD Ameritrade had approximately twelve million brokerage accounts and $1.3 trillion in total client assets. Under the agreement, TD Ameritrade stockholders will receive 1.0837 CSC shares for each TD Ameritrade share. Based on the closing price of CSC common stock on November 20, 2019, the merger consideration represented approximately $26 billion . The transaction is expected to close in the second half of 2020, subject to satisfaction of closing conditions. Under certain circumstances, CSC or TD Ameritrade could be required to pay the other party a termination fee of $950 million or reimburse the other party’s fees up to $50 million . Acquisition of USAA-IMCO: On July 25, 2019, the Company announced a definitive agreement to acquire assets of USAA-IMCO, including over one million brokerage and managed portfolio accounts with approximately $90 billion in client assets at the time of announcement, for $1.8 billion in cash. The companies have also agreed to enter into a long-term referral agreement, effective at closing of the acquisition, that would make Schwab the exclusive wealth management and brokerage provider for USAA members. The transaction is expected to close in mid-2020, subject to satisfaction of closing conditions, including regulatory approvals and the implementation of conversion plans. Legal contingencies: Schwab is subject to claims and lawsuits in the ordinary course of business, including arbitrations, class actions and other litigation, some of which include claims for substantial or unspecified damages. The Company is also the subject of inquiries, investigations, and proceedings by regulatory and other governmental agencies. Predicting the outcome of a litigation or regulatory matter is inherently difficult, requiring significant judgment and evaluation of various factors, including the procedural status of the matter and any recent developments; prior experience and the experience of others in similar cases; available defenses, including potential opportunities to dispose of a case on the merits or procedural grounds before trial (e.g., motions to dismiss or for summary judgment); the progress of fact discovery; the opinions of counsel and experts regarding potential damages; and potential opportunities for settlement and the status of any settlement discussions. It may not be reasonably possible to estimate a range of potential liability until the matter is closer to resolution – pending, for example, further proceedings, the outcome of key motions or appeals, or discussions among the parties. Numerous issues may have to be developed, such as discovery of important factual matters and determination of threshold legal issues, which may include novel or unsettled questions of law. Reserves are established or adjusted or further disclosure and estimates of potential loss are provided as the matter progresses and more information becomes available. Schwab believes it has strong defenses in all significant matters currently pending and is contesting liability and any damages claimed. Nevertheless, some of these matters may result in adverse judgments or awards, including penalties, injunctions or other relief, and the Company may also determine to settle a matter because of the uncertainty and risks of litigation. Described below are matters in which there is a reasonable possibility of a material loss, or where the matter may otherwise be of significant interest to stockholders. Unless noted, the Company is unable to provide a reasonable estimate of any potential liability given the stage of proceedings in the matter. With respect to all other pending matters, based on current information and consultation with counsel, it does not appear reasonably possible that the outcome of any such matter would be material to the financial condition, operating results, or cash flows of the Company. Crago Order Routing Litigation : On July 13, 2016, a securities class action lawsuit was filed in the U.S. District Court for the Northern District of California on behalf of a putative class of customers executing equity orders through CS&Co. The lawsuit names CS&Co and CSC as defendants and alleges that an agreement under which CS&Co routed orders to UBS Securities LLC between July 13, 2011 and December 31, 2014 violated CS&Co’s duty to seek best execution. Plaintiffs seek unspecified damages, interest, injunctive and equitable relief, and attorneys’ fees and costs. After a first amended complaint was dismissed with leave to amend, plaintiffs filed a second amended complaint on August 14, 2017. Defendants again moved to dismiss, and in a decision issued December 5, 2017, the court denied the motion. Defendants have answered the complaint to deny all allegations, and are vigorously contesting the lawsuit. TD Ameritrade Acquisition Litigation : Since March 10, 2020, six lawsuits have been filed by purported TD Ameritrade stockholders challenging the sufficiency of disclosures in the Form S-4 Registration Statement filed on that date with the SEC in connection with Schwab’s proposed acquisition of TD Ameritrade. All six lawsuits name the members of the TD Ameritrade board of directors as defendants. Two of the lawsuits also name Schwab as a defendant. In addition to costs and fees, the lawsuits seek to enjoin the vote of TD Ameritrade stockholders and the closing of the acquisition; and in the event the transaction is consummated, to set aside the transaction and obtain rescissionary damages. The Company considers the complaints to be without merit and would expect to contest the claims in due course. Complaints filed are as follows: Kent v. TD Ameritrade Holding Corporation et al. , a putative class action filed March 18, 2020 in U.S. District Court for the District of Delaware (Schwab entities named); Stein v. TD Ameritrade Holding Corporation et al., filed March 23, 2020 in U.S. District Court for the District of Delaware; Roth v. TD Ameritrade Holding Corporation et al. , filed March 30, 2020 in United States District Court for the District of New Jersey; Litwin v. TD Ameritrade Holding Corporation et al. , filed April 2, 2020 in U.S. District Court for the District of New Jersey; Bernstein v. TD Ameritrade Holding Corporation et al. , a putative class action filed April 6, 2020 in U.S. District Court for the District of New Jersey (CSC named); and Garrison v. TD Ameritrade Holding Corporation et al.

Financial Instruments Subject t

Financial Instruments Subject to Off-Balance Sheet Credit Risk	3 Months Ended
	Mar. 31, 2020
Offsetting [Abstract]
Financial Instruments Subject to Off-Balance Sheet Credit Risk	Financial Instruments Subject to Off-Balance Sheet Credit Risk Resale agreements: Schwab enters into collateralized resale agreements principally with other broker-dealers, which could result in losses in the event the counterparty fails to purchase the securities held as collateral for the cash advanced and the fair value of the securities declines. To mitigate this risk, Schwab requires that the counterparty deliver securities to a custodian, to be held as collateral, with a fair value at or in excess of the resale price. Schwab also sets standards for the credit quality of the counterparty, monitors the fair value of the underlying securities as compared to the related receivable, including accrued interest, and requires additional collateral where deemed appropriate. The collateral provided under these resale agreements is utilized to meet obligations under broker-dealer client protection rules, which place limitations on our ability to access such segregated securities. For Schwab to repledge or sell this collateral, we would be required to deposit cash and/or securities of an equal amount into our segregated reserve bank accounts in order to meet our segregated cash and investment requirement. Schwab’s resale agreements are not subject to master netting arrangements. Securities lending: Schwab loans brokerage client securities temporarily to other brokers and clearing houses in connection with its securities lending activities and receives cash as collateral for the securities loaned. Increases in security prices may cause the fair value of the securities loaned to exceed the amount of cash received as collateral. In the event the counterparty to these transactions does not return the loaned securities or provide additional cash collateral, we may be exposed to the risk of acquiring the securities at prevailing market prices in order to satisfy our client obligations. Schwab mitigates this risk by requiring credit approvals for counterparties, monitoring the fair value of securities loaned, and requiring additional cash as collateral when necessary. We also borrow securities from other broker-dealers to fulfill short sales by brokerage clients and deliver cash to the lender in exchange for the securities. The fair value of these borrowed securities was $73 million and $719 million at March 31, 2020 and December 31, 2019 , respectively. Most of our securities lending transactions are through a program with a clearing organization, which guarantees the return of cash to us. Our securities lending transactions are subject to enforceable master netting arrangements with other broker-dealers; however, we do not net securities lending transactions. Therefore, the securities loaned and securities borrowed are presented gross in the condensed consolidated balance sheets. The following table presents information about our resale agreements and securities lending activity depicting the potential effect of rights of setoff between these recognized assets and recognized liabilities. Gross Gross Amounts Net Amounts Gross Amounts Not Offset in the Net Counterparty Collateral March 31, 2020 Assets Resale agreements (1) $ 17,044 $ — $ 17,044 $ — $ (17,044 ) (2) $ — Securities borrowed (3) 78 — 78 (71 ) (6 ) 1 Total $ 17,122 $ — $ 17,122 $ (71 ) $ (17,050 ) $ 1 Liabilities Securities loaned (4,5) $ 1,335 $ — $ 1,335 $ (71 ) $ (1,106 ) $ 158 Total $ 1,335 $ — $ 1,335 $ (71 ) $ (1,106 ) $ 158 December 31, 2019 Assets Resale agreements (1) $ 9,028 $ — $ 9,028 $ — $ (9,028 ) (2) $ — Securities borrowed (3) 735 — 735 (730 ) (5 ) — Total $ 9,763 $ — $ 9,763 $ (730 ) $ (9,033 ) $ — Liabilities Securities loaned (4,5) $ 1,251 $ — $ 1,251 $ (730 ) $ (445 ) $ 76 Total $ 1,251 $ — $ 1,251 $ (730 ) $ (445 ) $ 76 (1) Included in cash and investments segregated and on deposit for regulatory purposes in the condensed consolidated balance sheets. (2) Actual collateral was greater than or equal to the value of the related assets. At March 31, 2020 and December 31, 2019 , the fair value of collateral received in connection with resale agreements that are available to be repledged or sold was $17.2 billion and $9.2 billion , respectively. (3) Included in other assets in the condensed consolidated balance sheets. (4) Included in accrued expenses and other liabilities in the condensed consolidated balance sheets. The cash collateral received from counterparties under securities lending transactions was equal to or greater than the market value of the securities loaned at March 31, 2020 and December 31, 2019 . (5) Securities loaned are predominantly comprised of equity securities held in client brokerage accounts with overnight and continuous remaining contractual maturities. Margin lending: Clients with margin loans have agreed to allow Schwab to pledge collateralized securities in their brokerage accounts in accordance with federal regulations. The following table summarizes the fair value of client securities that were available, under such regulations, that could have been used as collateral, as well as the fair value of securities that we had pledged under such regulations and from securities borrowed transactions: March 31, 2020 December 31, 2019 Fair value of client securities available to be pledged $ 22,896 $ 26,685 Fair value of securities pledged for: Fulfillment of requirements with the Options Clearing Corporation (1) $ 4,622 $ 2,171 Fulfillment of client short sales 2,102 2,293 Securities lending to other broker-dealers 1,277 1,017 Total collateral pledged $ 8,001 $ 5,481 Note: Excludes amounts available and pledged for securities lending from fully-paid client securities. The fair value of fully-paid client securities available and pledged was $104 million as of March 31, 2020 and $142 million as of December 31, 2019 . (1)

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Fair Values of Assets and Liabilities Assets and liabilities measured at fair value on a recurring basis Schwab’s assets and liabilities measured at fair value on a recurring basis include: certain cash equivalents, certain investments segregated and on deposit for regulatory purposes, AFS securities, and certain other assets. The Company uses the market approach to determine the fair value of assets and liabilities. When available, the Company uses quoted prices in active markets to measure the fair value of assets and liabilities. Quoted prices for investments in exchange-traded securities represent end-of-day close prices published by exchanges. Quoted prices for money market funds and other mutual funds represent reported net asset values. When utilizing market data and bid-ask spread, the Company uses the price within the bid-ask spread that best represents fair value. When quoted prices in active markets do not exist, the Company uses prices obtained from independent third-party pricing services to measure the fair value of investment assets. We generally obtain prices from three independent third-party pricing sources for assets recorded at fair value. Our primary independent pricing service provides prices for our fixed income investments such as commercial paper; certificates of deposit; U.S. government and agency securities; state and municipal securities; corporate debt securities; asset-backed securities; foreign government agency securities; and non-agency commercial mortgage-backed securities. Such prices are based on observable trades, broker/dealer quotes, and discounted cash flows that incorporate observable information such as yields for similar types of securities (a benchmark interest rate plus observable spreads) and weighted-average maturity for the same or similar “to-be-issued” securities. We compare the prices obtained from the primary independent pricing service to the prices obtained from the additional independent pricing services to determine if the price obtained from the primary independent pricing service is reasonable. Schwab does not adjust the prices received from independent third-party pricing services unless such prices are inconsistent with the definition of fair value and result in material differences in the amounts recorded. For a description of the fair value hierarchy and Schwab’s fair value methodologies, see Note 2 in the 2019 Form 10-K. The Company did not adjust prices received from the primary independent third-party pricing service at March 31, 2020 or December 31, 2019 . Assets and Liabilities Measured at Fair Value on a Recurring Basis The following tables present the fair value hierarchy for assets measured at fair value on a recurring basis. Liabilities recorded at fair value were not material, and therefore are not included in the following tables: March 31, 2020 Level 1 Level 2 Level 3 Balance at Cash equivalents: Money market funds $ 5,152 $ — $ — $ 5,152 Commercial paper — 4,057 — 4,057 Total cash equivalents 5,152 4,057 — 9,209 Investments segregated and on deposit for regulatory purposes: Certificates of deposit — 1,949 — 1,949 U.S. Government securities — 12,649 — 12,649 Total investments segregated and on deposit for regulatory purposes — 14,598 — 14,598 Available for sale securities: U.S. agency mortgage-backed securities — 179,595 — 179,595 Asset-backed securities — 22,481 — 22,481 Corporate debt securities — 11,222 — 11,222 U.S. Treasury securities — 3,664 — 3,664 U.S. state and municipal securities — 1,578 — 1,578 Non-agency commercial mortgage-backed securities — 1,226 — 1,226 Certificates of deposit — 998 — 998 Commercial paper — 396 — 396 Foreign government agency securities — 51 — 51 Other — 21 — 21 Total available for sale securities — 221,232 — 221,232 Other assets: Equity and bond mutual funds 379 — — 379 U.S. Government securities — 251 — 251 State and municipal debt obligations — 41 — 41 Equity, corporate debt, and other securities 3 21 — 24 Total other assets 382 313 — 695 Total $ 5,534 $ 240,200 $ — $ 245,734 December 31, 2019 Level 1 Level 2 Level 3 Balance at Cash equivalents: Money market funds $ 5,179 $ — $ — $ 5,179 Commercial paper — 2,498 — 2,498 Total cash equivalents 5,179 2,498 — 7,677 Investments segregated and on deposit for regulatory purposes: Certificates of deposit — 1,351 — 1,351 U.S. Government securities — 7,276 — 7,276 Total investments segregated and on deposit for regulatory purposes — 8,627 — 8,627 Available for sale securities: U.S. agency mortgage-backed securities — 46,155 — 46,155 Corporate debt securities — 5,484 — 5,484 Asset-backed securities — 4,987 — 4,987 U.S. Treasury securities — 3,384 — 3,384 Certificates of deposit — 1,004 — 1,004 Commercial paper — 395 — 395 Non-agency commercial mortgage-backed securities — 13 — 13 Total available for sale securities — 61,422 — 61,422 Other assets: Equity and bond mutual funds 442 — — 442 U.S. Government securities — 202 — 202 State and municipal debt obligations — 47 — 47 Equity, corporate debt, and other securities 5 22 — 27 Total other assets 447 271 — 718 Total $ 5,626 $ 72,818 $ — $ 78,444 Fair Value of Other Financial Instruments The following tables present the fair value hierarchy for other financial instruments: March 31, 2020 Carrying Level 1 Level 2 Level 3 Balance at Assets Cash and cash equivalents $ 59,249 $ 59,249 $ — $ — $ 59,249 Cash and investments segregated and on deposit for 19,668 2,637 17,031 — 19,668 Receivables from brokerage clients — net 18,998 — 18,998 — 18,998 Bank loans — net: First Mortgages 12,777 — 12,969 — 12,969 HELOCs 1,063 — 1,054 — 1,054 Pledged asset lines 5,467 — 5,467 — 5,467 Other 214 — 214 — 214 Total bank loans — net 19,521 — 19,704 — 19,704 Other assets 812 — 812 — 812 Liabilities Bank deposits $ 277,477 $ — $ 277,477 $ — $ 277,477 Payables to brokerage clients 49,251 — 49,251 — 49,251 Accrued expenses and other liabilities 4,648 — 4,648 — 4,648 Long-term debt 8,522 — 8,736 — 8,736 December 31, 2019 Carrying Level 1 Level 2 Level 3 Balance at Assets Cash and cash equivalents $ 21,668 $ 21,668 $ — $ — $ 21,668 Cash and investments segregated and on deposit for 11,807 2,792 9,015 — 11,807 Receivables from brokerage clients — net 21,763 — 21,763 — 21,763 Held to maturity securities: U.S. agency mortgage-backed securities 109,325 — 110,566 — 110,566 Asset-backed securities 17,806 — 17,771 — 17,771 Corporate debt securities 4,661 — 4,718 — 4,718 U.S. state and municipal securities 1,301 — 1,404 — 1,404 Non-agency commercial mortgage-backed securities 1,119 — 1,141 — 1,141 U.S. Treasury securities 223 — 228 — 228 Certificates of deposit 200 — 200 — 200 Foreign government agency securities 50 — 50 — 50 Other 21 — 21 — 21 Total held to maturity securities 134,706 — 136,099 — 136,099 Bank loans — net: First Mortgages 11,693 — 11,639 — 11,639 HELOCs 1,113 — 1,153 — 1,153 Pledged asset lines 5,206 — 5,206 — 5,206 Other 200 — 200 — 200 Total bank loans — net 18,212 — 18,198 — 18,198 Other assets 1,014 — 1,014 — 1,014 Liabilities Bank deposits $ 220,094 $ — $ 220,094 $ — $ 220,094 Payables to brokerage clients 39,220 — 39,220 — 39,220 Accrued expenses and other liabilities 1,882 — 1,882 — 1,882 Long-term debt 7,430 — 7,775 — 7,775

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity On January 30, 2019, CSC publicly announced that its Board of Directors authorized a share repurchase program to repurchase up to $4.0 billion of common stock. The share repurchase authorization does not have an expiration date. There were no repurchases of CSC’s common stock under this authorization during the three months ended March 31, 2020 and 2019. The Company’s preferred stock issued and outstanding is as follows: Liquidation Preference Per Share Dividend Rate in Effect at March 31, 2020 Earliest Redemption Date Date at Which Dividend Rate Becomes Floating Floating Annual Rate of Three-Month LIBOR plus: Shares Issued and Outstanding (in thousands) at Carrying Value at March 31, (1) December 31, 2019 (1) March 31, 2020 December 31, 2019 Issue Date Fixed-rate: Series C 600 600 $ 1,000 $ 585 $ 585 08/03/15 6.000 % 12/01/20 N/A N/A Series D 750 750 1,000 728 728 03/07/16 5.950 % 06/01/21 N/A N/A Fixed-to-floating-rate: Series A 400 400 1,000 397 397 01/26/12 7.000 % 02/01/22 02/01/22 4.820 % Series E 6 6 100,000 591 591 10/31/16 4.625 % 03/01/22 03/01/22 3.315 % Series F 5 5 100,000 492 492 10/31/17 5.000 % 12/01/27 12/01/27 2.575 % Total preferred stock 1,761 1,761 $ 2,793 $ 2,793 (1) Represented by depositary shares, except for Series A. N/A Not applicable. Dividends declared on the Company’s preferred stock are as follows: Three Months Ended March 31, 2020 2019 Total Per Share Total Per Share Series A $ — $ — $ — $ — Series C 9.0 15.00 9.0 15.00 Series D 11.2 14.88 11.2 14.88 Series E 13.9 2,312.50 13.9 2,312.50 Series F — — — — Total $ 34.1 $ 34.1

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income The components of other comprehensive income (loss) are as follows: 2020 2019 Three Months Ended March 31, Before Tax Net of Before Tax Net of Change in net unrealized gain (loss) on available for sale securities: Net unrealized gain (loss) $ 5,151 $ (1,244 ) $ 3,907 $ 227 $ (54 ) $ 173 Other reclassifications included in other revenue — — — (1 ) — (1 ) Amortization of amounts previously recorded upon transfer to held to maturity — — — 12 (3 ) 9 Other comprehensive income (loss) $ 5,151 $ (1,244 ) $ 3,907 $ 238 $ (57 ) $ 181 AOCI balances are as follows: Total AOCI Balance at December 31, 2018 $ (252 ) Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 154 Net unrealized gain on securities transferred to available for sale from held to maturity (1) 19 Other reclassifications included in other revenue (1 ) Held to maturity securities: Amortization of amounts previously recorded upon transfer to held to maturity from available for sale 9 Balance at March 31, 2019 $ (71 ) Balance at December 31, 2019 $ 88 Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 2,850 Net unrealized gain on securities transferred to available for sale from held to maturity (2) 1,057 Balance at March 31, 2020 $ 3,995 (1) In the first quarter of 2019, the Company made an election to transfer a portion of its HTM securities to AFS as part of its adoption of ASU 2017-12 , “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities”. The transfer resulted in a net of tax increase to AOCI of $19 million . (2) On January 1, 2020, the Company transferred all of its investment securities designated as HTM to the AFS category. The transfer resulted in a net of tax increase to AOCI of $ 1.1 billion . See Note 4 for additional discussion on the 2020 transfer of HTM securities to AFS.

Regulatory Requirements

Regulatory Requirements	3 Months Ended
	Mar. 31, 2020
Banking and Thrift [Abstract]
Regulatory Requirements	Regulatory Requirements At March 31, 2020 , CSC and CSB met all of their respective capital requirements. The regulatory capital and ratios for CSC (consolidated) and CSB are as follows: Actual (1) Minimum to be Minimum Capital Requirement March 31, 2020 Amount Ratio Amount Ratio Amount Ratio (2) CSC Common Equity Tier 1 Risk-Based Capital $ 18,197 18.4 % N/A $ 4,457 4.5 % Tier 1 Risk-Based Capital 20,990 21.2 % N/A 5,942 6.0 % Total Risk-Based Capital 21,023 21.2 % N/A 7,923 8.0 % Tier 1 Leverage 20,990 6.9 % N/A 12,137 4.0 % Supplementary Leverage Ratio 20,990 6.8 % N/A 9,309 3.0 % CSB Common Equity Tier 1 Risk-Based Capital $ 15,413 19.7 % $ 5,075 6.5 % $ 3,514 4.5 % Tier 1 Risk-Based Capital 15,413 19.7 % 6,247 8.0 % 4,685 6.0 % Total Risk-Based Capital 15,445 19.8 % 7,808 10.0 % 6,247 8.0 % Tier 1 Leverage 15,413 6.9 % 11,114 5.0 % 8,891 4.0 % Supplementary Leverage Ratio 15,413 6.7 % N/A N/A 6,867 3.0 % December 31, 2019 CSC Common Equity Tier 1 Risk-Based Capital $ 17,660 19.5 % N/A $ 4,073 4.5 % Tier 1 Risk-Based Capital 20,453 22.6 % N/A 5,431 6.0 % Total Risk-Based Capital 20,472 22.6 % N/A 7,241 8.0 % Tier 1 Leverage 20,453 7.3 % N/A 11,189 4.0 % Supplementary Leverage Ratio 20,453 7.1 % N/A 8,604 3.0 % CSB Common Equity Tier 1 Risk-Based Capital $ 14,819 20.7 % $ 4,649 6.5 % $ 3,218 4.5 % Tier 1 Risk-Based Capital 14,819 20.7 % 5,722 8.0 % 4,291 6.0 % Total Risk-Based Capital 14,837 20.7 % 7,152 10.0 % 5,722 8.0 % Tier 1 Leverage 14,819 7.1 % 10,486 5.0 % 8,389 4.0 % Supplementary Leverage Ratio 14,819 6.8 % N/A N/A 6,497 3.0 % (1) In the interagency regulatory capital and liquidity rules adopted in October 2019, Category III banking organizations such as CSC were given the ability to opt-out of the inclusion of AOCI in regulatory capital, and CSC made this opt-out election as of January 1, 2020. Therefore, AOCI is excluded from the amounts and ratios presented as of March 31, 2020. In 2019, CSC and CSB were required to include all components of AOCI in regulatory capital; the amounts and ratios for December 31, 2019 are presented on this basis. (2) Under the Basel III capital rule, CSC and CSB are also required to maintain a capital conservation buffer and a countercyclical capital buffer above the regulatory minimum risk-based capital ratios. The capital conservation buffer and countercyclical capital buffer were 2.5% and zero percent, respectively, for both periods presented. If either buffer falls below the minimum requirement, the Company would be subject to limits on capital distributions and discretionary bonus payments to executive officers. At March 31, 2020 , the minimum capital requirement plus capital conservation buffer and countercyclical capital buffer for Common Equity Tier 1 Risk-Based Capital, Tier 1 Risk-Based Capital, and Total Risk-Based Capital ratios were 7.0%, 8.5%, and 10.5%, respectively. N/A Not applicable. Based on its regulatory capital ratios at March 31, 2020 , CSB is considered well capitalized (the highest category) under its respective regulatory capital rules. There are no conditions or events since March 31, 2020 that management believes have changed CSB’s capital category. At March 31, 2020 , the balance sheets of CSPB and Charles Schwab Trust Bank (Trust Bank) consisted primarily of investment securities, and the entities held total assets of $22.4 billion and $10.7 billion , respectively. Based on their regulatory capital ratios, at March 31, 2020 , CSPB and Trust Bank are considered well capitalized under their respective regulatory capital rules. Net capital and net capital requirements for CS&Co are as follows: March 31, 2020 December 31, 2019 Net Capital $ 3,472 $ 3,700 Minimum net capital required 0.250 0.250 2% of aggregate debit balances 419 446 Net Capital in excess of required net capital $ 3,053 $ 3,254 Pursuant to Rule 15c3-3 of the Securities Exchange Act of 1934 and other applicable regulations, Schwab had cash and investments segregated for the exclusive benefit of clients at March 31, 2020 . The SEC Customer Protection Rule requires broker-dealers to segregate client fully-paid securities and cash balances not collateralizing margin positions and not swept to money market funds or bank deposit accounts. Amounts included in cash and investments segregated and on deposit for regulatory purposes represent actual balances on deposit. Cash and cash equivalents included in cash and investments segregated and on deposit for regulatory purposes are presented as part of Schwab’s cash balances in the condensed consolidated statements of cash flows.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Segment Information	Segment Information Schwab’s two reportable segments are Investor Services and Advisor Services. Schwab structures the operating segments according to its clients and the services provided to those clients. The Investor Services segment provides retail brokerage and banking services to individual investors, and retirement plan services, as well as other corporate brokerage services, to businesses and their employees. The Advisor Services segment provides custodial, trading, banking, and support services, as well as retirement business services, to independent RIAs, independent retirement advisors, and recordkeepers. Revenues and expenses are attributed to the two segments based on which segment services the client. Management evaluates the performance of the segments on a pre-tax basis. Segment assets and liabilities are not used for evaluating segment performance or in deciding how to allocate resources to segments. There are no revenues from transactions between the segments. Financial information for the segments is presented in the following table: Investor Services Advisor Services Total Three Months Ended March 31, 2020 2019 2020 2019 2020 2019 Net Revenues Net interest revenue $ 1,128 $ 1,195 $ 444 $ 486 $ 1,572 $ 1,681 Asset management and administration fees 600 533 227 222 827 755 Trading revenue (1) 119 141 69 76 188 217 Other (1) 20 42 10 28 30 70 Total net revenues 1,867 1,911 750 812 2,617 2,723 Expenses Excluding Interest 1,154 1,062 416 397 1,570 1,459 Income before taxes on income $ 713 $ 849 $ 334 $ 415 $ 1,047 $ 1,264 (1) In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On April 30, 2020, the Company issued and sold 2,500,000 depositary shares, each representing a 1/100th ownership interest in a share of 5.375% fixed-rate reset non-cumulative perpetual preferred stock, Series G, $0.01 par value per share, with a liquidation preference of $100,000 per share (equivalent of $1,000 per depositary share). The net proceeds of the offering were approximately $2.47 billion , after deducting the underwriting discount and estimated offering expenses.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Basis of Presentation	These unaudited condensed consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the U.S. (GAAP), which require management to make certain estimates and assumptions that affect the reported amounts in the accompanying financial statements and in the related disclosures. These estimates are based on information available as of the date of the condensed consolidated financial statements. While management makes its best judgment, actual amounts or results could differ from these estimates. In the opinion of management, all normal, recurring adjustments have been included for a fair statement of this interim financial information. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto, included in Schwab’s 2019 Form 10-K.
Reclassifications	Reclassifications: Certain prior period amounts have been reclassified to conform to the current period presentation. Beginning in the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue in the condensed consolidated statements of income. Prior period amounts have been reclassified to reflect this change.
Credit Loss, Financial Instrument	Cash and investments segregated and on deposit for regulatory purposes Pursuant to Rule 15c3-3 of the Securities Exchange Act of 1934 and other applicable regulations, Schwab maintains cash or qualified securities in segregated reserve accounts for the exclusive benefit of clients. Cash and investments segregated and on deposit for regulatory purposes include resale agreements, which are collateralized by U.S. Government and agency securities. Resale agreements are accounted for as collateralized financing transactions that are recorded at their contractual amounts plus accrued interest. The Company obtains collateral with a market value equal to or in excess of the principal amount loaned and accrued interest under resale agreements. Collateral is valued daily by the Company, with additional collateral obtained to ensure full collateralization. Cash and investments segregated also include certificates of deposit and U.S. Government securities. Certificates of deposit and U.S. Government securities are recorded at fair value. Schwab applies the practical expedient based on collateral maintenance provisions under Accounting Standards Codification (ASC) 326, Financial Instruments – Credit Losses , in estimating an allowance for credit losses for resale agreements. This practical expedient can be applied for financial assets with collateral maintenance provisions requiring the borrower to continually adjust the amount of the collateral securing the financial assets as a result of fair value changes in the collateral. In accordance with the practical expedient, when the Company reasonably expects that borrowers (or counterparties, as applicable) will replenish the collateral as required, there is no expectation of credit losses when the collateral’s fair value is greater than the amortized cost of the financial asset. If the amortized cost exceeds the fair value of collateral, then credit losses are estimated only on the unsecured portion. Receivables from brokerage clients Receivables from brokerage clients include margin loans to securities brokerage clients and other trading receivables from clients. Margin loans are collateralized by client securities and are carried at the amount receivable, net of an allowance for credit losses. Collateral is required to be maintained at specified minimum levels at all times. The Company monitors margin levels and requires clients to provide additional collateral, or reduce margin positions, to meet minimum collateral requirements if the fair value of the collateral changes. Schwab applies the practical expedient based on collateral maintenance provisions in estimating an allowance for credit losses for margin loans. An allowance for credit losses on unsecured or partially secured receivables from brokerage clients is estimated based on the aging of those receivables. Unsecured balances due to confirmed fraud are reserved immediately. The Company’s policy is to charge off any delinquent margin loans, including the accrued interest on such loans, no later than at 90 days past due. Accrued interest charged off is recognized as credit loss expense and is included in other expenses in the condensed consolidated statements of income. Clients with margin loans have agreed to allow Schwab to pledge collateralized securities in accordance with federal regulations. The collateral is not reflected in the consolidated financial statements. The allowance for credit losses for receivables from brokerage clients and related activity were immaterial for all periods presented. AFS investment securities AFS investment securities are recorded at fair value and unrealized gains and losses, other than losses related to credit factors, are reported, net of taxes, in AOCI included in stockholders’ equity. Realized gains and losses from sales of AFS investment securities are determined on a specific identification basis and are included in other revenue. An AFS investment security is impaired if the fair value of the security is less than its amortized cost basis. Management evaluates AFS debt investment securities with unrealized losses to determine whether the security impairment has resulted from a credit loss or other factors. This evaluation is performed quarterly on an individual security basis. The evaluation of whether credit loss exists is inherently judgmental. This evaluation considers multiple factors including: the financial condition of the issuer; the payment structure of the security; external credit ratings; our internal credit ratings; the security’s market implied credit spread; for asset-backed securities, the amount of credit support provided by the structure of the security to absorb credit losses on the underlying collateral; recent events specific to the issuer and the issuer’s industry; and whether all scheduled principal and interest payments have been received. If management determines that the impairment of an AFS debt investment security (or a portion of the impairment) is related to credit losses, an allowance for credit losses will be recorded for that security through a charge to earnings. The allowance for credit losses is measured as the difference between the amortized cost and the present value of expected cash flows and is limited to the difference between amortized cost and the fair value of the security. The Company estimates credit losses on a discounted cash flow basis using the security’s effective interest rate. Changes in the allowance for credit losses will be recorded through earnings in the period of the change. If it is determined that the Company intends to sell the impaired security or if it is more likely than not that the Company will be required to sell such security before any anticipated recovery of the amortized cost basis, any allowance for credit losses of that security will be written off and the amortized cost basis of the security will be written down to fair value with any incremental impairment recorded through earnings. The Company excludes accrued interest from the fair value and the amortized cost basis of the AFS debt investment securities for the purposes of identifying and measuring impairment of the securities. AFS debt investment securities are placed on nonaccrual status on a timely basis and any accrued interest receivable is reversed through interest income. Securities borrowed and securities loaned Securities borrowed transactions require Schwab to deliver cash to the lender in exchange for securities; the receivables from these transactions are included in other assets on the condensed consolidated balance sheets. For securities loaned, Schwab receives collateral in the form of cash in an amount equal to or greater than the market value of securities loaned; the payables from these transactions are included in accrued expenses and other liabilities on the condensed consolidated balance sheets. The market value of securities borrowed and loaned are monitored, with additional collateral obtained or refunded to ensure full collateralization. Fees received or paid are recorded in interest revenue or interest expense. Schwab applies the practical expedient based on collateral maintenance provisions in estimating an allowance for credit losses for securities borrowed receivables. Bank loans and related allowance for credit losses Bank loans are recorded at their contractual principal amounts and include unamortized direct origination costs or net purchase discounts or premiums. Direct origination costs and premiums and discounts are recognized in interest revenue using the effective interest method over the contractual life of the loan and are adjusted for actual prepayments. Additionally, management estimates an allowance for credit losses, which is deducted from the amortized cost basis of loans to arrive at the amount expected to be collected. The bank loan portfolio includes four loan types: First Mortgages, HELOCs, pledged asset lines (PALs), and other loans. We use these segments when developing and documenting our methodology for determining the allowance for credit losses. Schwab records an allowance for credit losses through a charge to earnings based on our estimate of current expected credit losses for the existing portfolio. We review the allowance for credit losses quarterly, taking into consideration current economic conditions, reasonable and supportable forecasts, the composition of the existing loan portfolio, past loss experience, and any other risks inherent in the portfolio to ensure that the allowance for credit losses is maintained at an appropriate level. PALs are collateralized by marketable securities with liquid markets. Credit lines are over-collateralized and borrowers are required to maintain collateral at specified levels at all times. The required collateral levels are determined based on the type of security pledged. Additionally, collateral market value is monitored on a daily basis and a borrower’s credit line may be reduced or collateral may be liquidated if the collateral is in danger of falling below specified levels. As such, the credit loss inherent within this portfolio is limited. Schwab applies the practical expedient based on collateral maintenance provisions in estimating an allowance for credit losses for PALs. The methodology to establish an allowance for credit losses for First Mortgages and HELOCs utilizes statistical models that estimate prepayments, defaults, and expected losses for these loan segments based on predicted behavior of individual loans within the segments. The methodology also evaluates concentrations in the loan types, including loan products within those types, year of origination, and geographical distribution of collateral. Expected credit losses are forecast using a loan-level simulation of the delinquency status of the loans over the term of the loans. The simulation starts with the current relevant risk indicators, including the current delinquent status of each loan, the estimated current LTV ratio (Estimated Current LTV) of each loan, the term and structure of each loan, current key interest rates including U.S. Treasury and LIBOR rates, and borrower FICO scores. The more significant variables in the simulation include delinquency roll rates, loss severity, housing prices, interest rates, and unemployment rate. Delinquency roll rates (i.e., the rates at which loans transition through delinquency stages and ultimately result in a loss) are estimated from our historical loss experience adjusted for current trends and market information, which includes current and forecast conditions. Loss severity (i.e., loss given default) estimates are based on our historical loss experience and market trends, both current and forecast. The loss severity estimate used in the allowance for credit loss methodology for HELOC loans is higher than that used in the methodology for First Mortgages. Housing price trends are derived from historical home price indices and econometric forecasts of future home values. Factors affecting the home price index include housing inventory, unemployment, interest rates, and inflation expectations. Interest rate projections are based on the current term structure of interest rates and historical volatilities to project various possible future interest rate paths. The unemployment rate forecast is typically based on the recent consensus of regularly published economic surveys. Linear interpolation is applied to revert to long-term trends after the reasonable and supportable forecast period. The methodology described above results in loss factors that are applied to the amortized cost basis of loans, exclusive of accrued interest receivable, to determine the allowance for credit losses for First Mortgages and HELOCs. Management also estimates a liability for expected credit losses on the Company’s commitments to extend credit related to unused HELOCs and commitments to purchase first mortgages. See Note 9 for additional information on these commitments. The liability is calculated by applying the loss factors described above to the commitments expected to be funded and is included in accrued expenses and other liabilities on the condensed consolidated balance sheets. The liability for expected credit losses on these commitments and related activity were immaterial for all periods presented. Schwab considers loan modifications in which it makes an economic concession to a borrower experiencing financial difficulty to be troubled debt restructurings (TDRs). Nonaccrual and Nonperforming loans First Mortgages, HELOCs, PALs, and other loans are considered past due when a payment is due and unpaid for 30 days. Loans are placed on nonaccrual status upon becoming 90 days past due as to interest or principal (unless the loans are well-secured and in the process of collection), or when the full timely collection of interest or principal becomes uncertain, including loans to borrowers who have filed for bankruptcy. HELOC loans secured by a second lien are placed on non-accrual status if the associated first lien is 90 days or more delinquent, regardless of the payment status of the HELOC. When a loan is placed on nonaccrual status, the accrued interest receivable is written off by reversing interest income and the loan is accounted for on the cash or cost recovery method until qualifying for return to accrual status. Generally, a nonaccrual loan may be returned to accrual status when all delinquent interest and principal is repaid and the borrower demonstrates a sustained period of performance, or when the loan is both well-secured and in the process of collection and collectability is no longer doubtful. Loans on nonaccrual status and other real estate owned are considered nonperforming assets. Loan Charge-Offs The Company charges off a loan in the period that it is deemed uncollectible and records a reduction in the allowance for credit losses and the loan balance. Our charge-off policy for First Mortgage and HELOC loans is to assess the value of the property when the loan has been delinquent for 180 days or has been discharged in bankruptcy proceedings, regardless of whether the property is in foreclosure, and charge-off the amount of the loan balance in excess of the estimated current value of the underlying property less estimated costs to sell. The Company’s policy for PALs is to charge off any delinquent loans no later than at 90 days past due.
Adoption of New Accounting Standards and New Accounting Standards Not Yet Adopted	Adoption of New Accounting Standards Standard Description Date of Adoption Effects on the Financial Statements or Other Significant Matters Accounting Standards Update (ASU) 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” Provides guidance for recognizing impairment of most debt instruments measured at amortized cost, including loans and HTM debt securities. Requires estimating current expected credit losses (CECL) over the remaining life of an instrument or a portfolio of instruments with similar risk characteristics based on relevant information about past events, current conditions, and reasonable forecasts. The initial estimate of, and the subsequent changes in, CECL will be recognized as credit loss expense through current earnings and will be reflected as an allowance for credit losses offsetting the carrying value of the financial instrument(s) on the balance sheet. Amends the other-than-temporary impairment (OTTI) model for AFS debt securities by requiring the use of an allowance, rather than directly reducing the carrying value of the security, and eliminating consideration of the length of time such security has been in an unrealized loss position as a factor in concluding whether a credit loss exists. Adoption requires modified retrospective transition through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the entity applies the new guidance except that a prospective transition is required for AFS debt securities for which an OTTI has been recognized prior to the effective date. January 1, 2020 The Company adopted CECL as of January 1, 2020 using the modified retrospective method. The adoption of CECL resulted in an immaterial increase in the Company’s allowance for credit losses and an increase in the liability for expected credit losses on commitments to extend credit, both primarily related to First Mortgages and HELOCs. The adoption impact was recorded as an adjustment to retained earnings as of the date of adoption. ASU 2018-15, “Intangibles– Goodwill and Other–Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force)” Aligns the criteria for capitalizing implementation costs for cloud computing arrangements (CCA) that are service contracts with internal-use software that is developed or purchased and CCAs that include an internal-use software license. This guidance requires that the capitalized implementation costs be recognized over the period of the CCA service contract, subject to impairment evaluation on an ongoing basis. The guidance prescribes the balance sheet, income statement, and statement of cash flow classification of the capitalized implementation costs and related amortization expense, and requires additional quantitative and qualitative disclosures. Adoption provides for retrospective or prospective application to all implementation costs incurred after the date of adoption. January 1, 2020 The Company adopted this guidance prospectively on January 1, 2020. As such, adoption had no impact on the Company’s financial statements. Historically, Schwab has expensed implementation costs as they are incurred for CCAs that are service contracts. Therefore, adopting this guidance will change the Company’s accounting treatment for these types of implementation costs going forward. New Accounting Standards Not Yet Adopted Standard Description Required Date of Adoption Effects on the Financial Statements or Other Significant Matters ASU 2020-4, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” Provides optional expedients and exceptions for applying existing accounting guidance to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met, including simplifying accounting analyses for contract modifications. This guidance only applies to the items listed above if they reference LIBOR or another reference rate expected to be discontinued because of reference rate reform and only for a limited period of time. When elected, the optional expedients for contract modifications must be applied consistently for all eligible contracts or eligible transactions subject to the same accounting guidance that would have otherwise been applied. Once elected, the amendments must be applied prospectively. N/A. Effective March 12, 2020 through December 31, 2022 The Company is evaluating the expedients and exceptions provided by this guidance. The elected amendments will be applied prospectively and the Company is currently evaluating the potential impacts on its consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Schedule of New Accounting Pronouncements	Adoption of New Accounting Standards Standard Description Date of Adoption Effects on the Financial Statements or Other Significant Matters Accounting Standards Update (ASU) 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” Provides guidance for recognizing impairment of most debt instruments measured at amortized cost, including loans and HTM debt securities. Requires estimating current expected credit losses (CECL) over the remaining life of an instrument or a portfolio of instruments with similar risk characteristics based on relevant information about past events, current conditions, and reasonable forecasts. The initial estimate of, and the subsequent changes in, CECL will be recognized as credit loss expense through current earnings and will be reflected as an allowance for credit losses offsetting the carrying value of the financial instrument(s) on the balance sheet. Amends the other-than-temporary impairment (OTTI) model for AFS debt securities by requiring the use of an allowance, rather than directly reducing the carrying value of the security, and eliminating consideration of the length of time such security has been in an unrealized loss position as a factor in concluding whether a credit loss exists. Adoption requires modified retrospective transition through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the entity applies the new guidance except that a prospective transition is required for AFS debt securities for which an OTTI has been recognized prior to the effective date. January 1, 2020 The Company adopted CECL as of January 1, 2020 using the modified retrospective method. The adoption of CECL resulted in an immaterial increase in the Company’s allowance for credit losses and an increase in the liability for expected credit losses on commitments to extend credit, both primarily related to First Mortgages and HELOCs. The adoption impact was recorded as an adjustment to retained earnings as of the date of adoption. ASU 2018-15, “Intangibles– Goodwill and Other–Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force)” Aligns the criteria for capitalizing implementation costs for cloud computing arrangements (CCA) that are service contracts with internal-use software that is developed or purchased and CCAs that include an internal-use software license. This guidance requires that the capitalized implementation costs be recognized over the period of the CCA service contract, subject to impairment evaluation on an ongoing basis. The guidance prescribes the balance sheet, income statement, and statement of cash flow classification of the capitalized implementation costs and related amortization expense, and requires additional quantitative and qualitative disclosures. Adoption provides for retrospective or prospective application to all implementation costs incurred after the date of adoption. January 1, 2020 The Company adopted this guidance prospectively on January 1, 2020. As such, adoption had no impact on the Company’s financial statements. Historically, Schwab has expensed implementation costs as they are incurred for CCAs that are service contracts. Therefore, adopting this guidance will change the Company’s accounting treatment for these types of implementation costs going forward. New Accounting Standards Not Yet Adopted Standard Description Required Date of Adoption Effects on the Financial Statements or Other Significant Matters ASU 2020-4, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting” Provides optional expedients and exceptions for applying existing accounting guidance to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met, including simplifying accounting analyses for contract modifications. This guidance only applies to the items listed above if they reference LIBOR or another reference rate expected to be discontinued because of reference rate reform and only for a limited period of time. When elected, the optional expedients for contract modifications must be applied consistently for all eligible contracts or eligible transactions subject to the same accounting guidance that would have otherwise been applied. Once elected, the amendments must be applied prospectively. N/A. Effective March 12, 2020 through December 31, 2022 The Company is evaluating the expedients and exceptions provided by this guidance. The elected amendments will be applied prospectively and the Company is currently evaluating the potential impacts on its consolidated financial statements.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Schwab's Revenue	Disaggregation of Schwab’s revenue by major source is as follows: Three Months Ended 2020 2019 Net interest revenue Interest revenue $ 1,708 $ 1,998 Interest expense (136 ) (317 ) Net interest revenue 1,572 1,681 Asset management and administration fees Mutual funds, ETFs, and CTFs 452 414 Advice solutions 312 278 Other 63 63 Asset management and administration fees 827 755 Trading revenue Commissions 113 163 Principal transactions 20 22 Order flow revenue (1) 55 32 Trading revenue (1) 188 217 Other (1) 30 70 Total net revenues $ 2,617 $ 2,723 (1) In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Securities Available for Sale and Securities Held to Maturity	The amortized cost, gross unrealized gains and losses, and fair value of the Company’s investment securities are as follows: March 31, 2020 Amortized Gross Gross Fair Available for sale securities U.S. agency mortgage-backed securities $ 173,812 $ 6,007 $ 224 $ 179,595 Asset-backed securities (1) 23,077 49 645 22,481 Corporate debt securities (2) 11,192 136 106 11,222 U.S. Treasury securities 3,616 48 — 3,664 U.S. state and municipal securities 1,493 96 11 1,578 Non-agency commercial mortgage-backed securities 1,215 16 5 1,226 Certificates of deposit 1,000 3 5 998 Commercial paper (2,3) 397 — 1 396 Foreign government agency securities 50 1 — 51 Other 21 — — 21 Total available for sale securities $ 215,873 $ 6,356 $ 997 $ 221,232 December 31, 2019 Available for sale securities U.S. agency mortgage-backed securities $ 45,964 $ 312 $ 121 $ 46,155 Corporate debt securities (2) 5,427 57 — 5,484 Asset-backed securities (1) 4,970 30 13 4,987 U.S. Treasury securities 3,387 3 6 3,384 Certificates of deposit 1,000 4 — 1,004 Commercial paper (2,3) 394 1 — 395 Non-agency commercial mortgage-backed securities 13 — — 13 Total available for sale securities $ 61,155 $ 407 $ 140 $ 61,422 Held to maturity securities U.S. agency mortgage-backed securities $ 109,325 $ 1,521 $ 280 $ 110,566 Asset-backed securities (1) 17,806 50 85 17,771 Corporate debt securities (2) 4,661 57 — 4,718 U.S. state and municipal securities 1,301 103 — 1,404 Non-agency commercial mortgage-backed securities 1,119 22 — 1,141 U.S. Treasury securities 223 5 — 228 Certificates of deposit 200 — — 200 Foreign government agency securities 50 — — 50 Other 21 — — 21 Total held to maturity securities $ 134,706 $ 1,758 $ 365 $ 136,099 (1) Approximately 42% and 43% of asset-backed securities held as of March 31, 2020 and December 31, 2019 , respectively, were Federal Family Education Loan Program Asset-Backed Securities. Asset-backed securities collateralized by credit card receivables represented approximately 43% and 42% of the asset-backed securities held as of March 31, 2020 and December 31, 2019 , respectively. (2) As of March 31, 2020 approximately 32% of the total AFS, and as of December 31, 2019 approximately 32% , of the total AFS and HTM investments in corporate debt securities and commercial paper were issued by institutions in the financial services industry. (3) Included in cash and cash equivalents on the condensed consolidated balance sheets, but excluded from this table is $4.1 billion and $2.5 billion of AFS commercial paper as of March 31, 2020 and December 31, 2019 , respectively. These holdings have maturities of three months or less and an aggregate market value equal to amortized cost.
Securities with Unrealized Losses, Aggregated by Category and Period of Continuous Unrealized Loss	Securities with unrealized losses, aggregated by category and period of continuous unrealized loss, are as follows: Less than 12 months 12 months or longer Total March 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized Available for sale securities Asset-backed securities $ 15,852 $ 515 $ 2,638 $ 130 $ 18,490 $ 645 U.S. agency mortgage-backed securities 11,077 100 11,661 124 22,738 224 Corporate debt securities 4,835 106 — — 4,835 106 Certificates of deposit 795 5 — — 795 5 Non-agency commercial mortgage-backed securities 397 5 12 — 409 5 Commercial paper 396 1 — — 396 1 U.S. state and municipal securities 182 11 — — 182 11 Total $ 33,534 $ 743 $ 14,311 $ 254 $ 47,845 $ 997 December 31, 2019 Available for sale securities U.S. agency mortgage-backed securities $ 16,023 $ 94 $ 6,592 $ 27 $ 22,615 $ 121 Asset-backed securities 960 6 298 7 1,258 13 U.S. Treasury securities 510 — 1,243 6 1,753 6 Total $ 17,493 $ 100 $ 8,133 $ 40 $ 25,626 $ 140 Held to maturity securities U.S. agency mortgage-backed securities $ 16,183 $ 100 $ 18,910 $ 180 $ 35,093 $ 280 Asset-backed securities 7,507 63 2,898 22 10,405 85 Total $ 23,690 $ 163 $ 21,808 $ 202 $ 45,498 $ 365 Total securities with unrealized losses $ 41,183 $ 263 $ 29,941 $ 242 $ 71,124 $ 505
Securities with Unrealized Losses, Aggregated by Category and Period of Continuous Unrealized Loss	Securities with unrealized losses, aggregated by category and period of continuous unrealized loss, are as follows: Less than 12 months 12 months or longer Total March 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized Available for sale securities Asset-backed securities $ 15,852 $ 515 $ 2,638 $ 130 $ 18,490 $ 645 U.S. agency mortgage-backed securities 11,077 100 11,661 124 22,738 224 Corporate debt securities 4,835 106 — — 4,835 106 Certificates of deposit 795 5 — — 795 5 Non-agency commercial mortgage-backed securities 397 5 12 — 409 5 Commercial paper 396 1 — — 396 1 U.S. state and municipal securities 182 11 — — 182 11 Total $ 33,534 $ 743 $ 14,311 $ 254 $ 47,845 $ 997 December 31, 2019 Available for sale securities U.S. agency mortgage-backed securities $ 16,023 $ 94 $ 6,592 $ 27 $ 22,615 $ 121 Asset-backed securities 960 6 298 7 1,258 13 U.S. Treasury securities 510 — 1,243 6 1,753 6 Total $ 17,493 $ 100 $ 8,133 $ 40 $ 25,626 $ 140 Held to maturity securities U.S. agency mortgage-backed securities $ 16,183 $ 100 $ 18,910 $ 180 $ 35,093 $ 280 Asset-backed securities 7,507 63 2,898 22 10,405 85 Total $ 23,690 $ 163 $ 21,808 $ 202 $ 45,498 $ 365 Total securities with unrealized losses $ 41,183 $ 263 $ 29,941 $ 242 $ 71,124 $ 505
Maturities of Securities Available for Sale and Securities Held to Maturity	The maturities of AFS securities are as follows: March 31, 2020 Within After 1 year After 5 years After Total Available for sale securities U.S. agency mortgage-backed securities $ 1,158 $ 18,885 $ 51,687 $ 107,865 $ 179,595 Asset-backed securities 43 7,818 6,091 8,529 22,481 Corporate debt securities 2,410 7,612 1,200 — 11,222 U.S. Treasury securities 2,834 830 — — 3,664 U.S. state and municipal securities — 98 603 877 1,578 Non-agency commercial mortgage-backed securities — — — 1,226 1,226 Certificates of deposit 702 296 — — 998 Commercial paper 396 — — — 396 Foreign government agency securities — 51 — — 51 Other — — — 21 21 Total fair value $ 7,543 $ 35,590 $ 59,581 $ 118,518 $ 221,232 Total amortized cost $ 7,531 $ 35,024 $ 57,258 $ 116,060 $ 215,873
Proceeds and Gross Realized Gains And Losses from Sales of Securities Available for Sale	Proceeds and gross realized gains and losses from sales of AFS securities are as follows: Three Months Ended 2020 2019 Proceeds $ 69 $ 10,652 Gross realized gains — 3 Gross realized losses — 2

Bank Loans and Related Allowa_2

Bank Loans and Related Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Composition of Bank Loans and Delinquency Analysis by Loan Segment	The composition of bank loans and delinquency analysis by loan type is as follows: March 31, 2020 Current 30-59 days 60-89 days > 90 days past (3) Total past due Total Allowance Total First Mortgages (1,2) $ 12,751 $ 32 $ 3 $ 12 $ 47 $ 12,798 $ 21 $ 12,777 HELOCs (1,2) 1,055 2 1 9 12 1,067 4 1,063 Pledged asset lines 5,458 6 3 — 9 5,467 — 5,467 Other 216 — — 2 2 218 4 214 Total bank loans $ 19,480 $ 40 $ 7 $ 23 $ 70 $ 19,550 $ 29 $ 19,521 December 31, 2019 First Mortgages (1,2) $ 11,665 $ 24 $ 4 $ 11 $ 39 $ 11,704 $ 11 $ 11,693 HELOCs (1,2) 1,105 2 1 9 12 1,117 4 1,113 Pledged asset lines 5,202 4 — — 4 5,206 — 5,206 Other 201 — — 2 2 203 3 200 Total bank loans $ 18,173 $ 30 $ 5 $ 22 $ 57 $ 18,230 $ 18 $ 18,212 (1) First Mortgages and HELOCs include unamortized premiums and discounts and direct origination costs of $77 million and $74 million at March 31, 2020 and December 31, 2019 , respectively. (2) At March 31, 2020 and December 31, 2019 , 45% of the First Mortgage and HELOC portfolios were concentrated in California. These loans have performed in a manner consistent with the portfolio as a whole. (3) There were no loans accruing interest that were contractually 90 days or more past due at March 31, 2020 or December 31, 2019 .
Changes in Allowance for Credit Losses on Bank Loans	Changes in the allowance for credit losses on bank loans were as follows: March 31, 2020 March 31, 2019 Three Months Ended First Mortgages HELOCs Other Total (1) First Mortgages HELOCs Other Total (1) Balance at beginning of period $ 11 $ 4 $ 3 $ 18 $ 14 $ 5 $ 2 $ 21 Adoption of ASU 2016-13 1 — — 1 — — — — Charge-offs — — — — — — — — Recoveries — — — — — 1 — 1 Provision for credit losses 9 — 1 10 — (1 ) — (1 ) Balance at end of period $ 21 $ 4 $ 4 $ 29 $ 14 $ 5 $ 2 $ 21 Note: Substantially all of the bank loans were collectively evaluated for impairment at December 31, 2019 . (1) All PALs were fully collateralized by securities with fair values in excess of borrowings as of each period presented.
Bank Loan-related Nonperforming Assets and Troubled Debt Restructurings	A summary of bank loan-related nonperforming assets and troubled debt restructurings is as follows: March 31, 2020 December 31, 2019 Nonaccrual loans (1) $ 23 $ 22 Other real estate owned (2) 1 1 Total nonperforming assets 24 23 Troubled debt restructurings 2 2 Total nonperforming assets and troubled debt restructurings $ 26 $ 25 (1) Nonaccrual loans include nonaccrual troubled debt restructurings. (2) Included in other assets on the condensed consolidated balance sheets.
Credit Quality Indicators of Bank Loan Portfolio	The credit quality indicators of the Company’s bank loan portfolio are detailed below: First Mortgages Amortized Cost Basis by Origination Year March 31, 2020 2020 2019 2018 2017 2016 pre-2016 Total First Mortgages Revolving HELOCs amortized cost basis HELOCs converted to term loans Total HELOCs Origination FICO <620 $ — $ — $ — $ — $ — $ 3 $ 3 $ — $ — $ — 620 – 679 11 14 6 14 19 20 84 2 4 6 680 – 739 222 480 193 278 271 369 1,813 108 100 208 ≥740 1,719 3,498 886 1,447 1,689 1,659 10,898 482 371 853 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Origination LTV ≤70% $ 1,578 $ 3,120 $ 771 $ 1,290 $ 1,669 $ 1,453 $ 9,881 $ 432 $ 331 $ 763 >70% – ≤90% 374 872 314 449 310 594 2,913 160 139 299 >90% – ≤100% — — — — — 4 4 — 5 5 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Weighted Average <620 $ 4 $ 5 $ 3 $ 5 $ 4 $ 24 $ 45 $ 5 $ 14 $ 19 620 – 679 14 49 23 23 21 54 184 14 21 35 680 – 739 192 385 135 184 177 264 1,337 84 75 159 ≥740 1,742 3,553 924 1,527 1,777 1,709 11,232 489 365 854 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Estimated Current LTV (1) ≤70% $ 1,578 $ 3,168 $ 884 $ 1,646 $ 1,956 $ 2,026 $ 11,258 $ 558 $ 450 $ 1,008 >70% – ≤90% 374 824 199 93 23 22 1,535 34 20 54 >90% – ≤100% — — 2 — — 2 4 — 3 3 >100% — — — — — 1 1 — 2 2 Total $ 1,952 $ 3,992 $ 1,085 $ 1,739 $ 1,979 $ 2,051 $ 12,798 $ 592 $ 475 $ 1,067 Percent of Loans on 0.03 % 0.03 % 0.03 % 0.05 % 0.08 % 0.34 % 0.09 % 0.14 % 1.69 % 0.84 % (1) Represents the LTV for the full line of credit (drawn and undrawn) for revolving HELOCs. March 31, 2020 Balance Weighted Average Updated FICO Percent of Loans on Nonaccrual Status Pledged Asset Lines Weighted-Average LTV (1) =70% $ 5,467 769 — (1) Represents the LTV for the full line of credit (drawn and undrawn). First Mortgages Amortized Cost Basis by Origination Year December 31, 2019 2019 2018 2017 2016 pre-2016 Total First Mortgages Revolving HELOCs amortized cost basis HELOCs converted to term loans Total HELOCs Origination FICO <620 $ — $ — $ — $ — $ 3 $ 3 $ — $ — $ — 620 – 679 12 6 14 20 25 77 1 4 5 680 – 739 478 220 304 290 421 1,713 114 105 219 ≥740 3,512 1,058 1,593 1,839 1,909 9,911 496 397 893 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Origination LTV ≤70% $ 3,104 $ 906 $ 1,427 $ 1,812 $ 1,679 $ 8,928 $ 444 $ 354 $ 798 >70% – ≤90% 898 378 484 337 676 2,773 167 147 314 >90% – ≤100% — — — — 3 3 — 5 5 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Weighted Average <620 $ 5 $ 4 $ 5 $ 3 $ 25 $ 42 $ 6 $ 15 $ 21 620 – 679 45 36 32 26 68 207 18 22 40 680 – 739 474 153 213 199 307 1,346 92 80 172 ≥740 3,478 1,091 1,661 1,921 1,958 10,109 495 389 884 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Estimated Current LTV (1) ≤70% $ 3,125 $ 1,018 $ 1,790 $ 2,119 $ 2,330 $ 10,382 $ 578 $ 478 $ 1,056 >70% – ≤90% 877 265 121 30 27 1,320 33 23 56 >90% – ≤100% — 1 — — 1 2 — 3 3 >100% — — — — — — — 2 2 Total $ 4,002 $ 1,284 $ 1,911 $ 2,149 $ 2,358 $ 11,704 $ 611 $ 506 $ 1,117 Percent of Loans on 0.04 % 0.04 % 0.04 % 0.08 % 0.25 % 0.09 % 0.19 % 1.57 % 0.83 % (1) Represents the LTV for the full line of credit (drawn and undrawn) for revolving HELOCs. December 31, 2019 Balance Weighted Average Updated FICO Percent of Loans on Nonaccrual Status Pledged Asset Lines Weighted-Average LTV (1) =70% $ 5,206 766 —
Converting to Amortizing Loans	The following table presents HELOCs converted to amortizing loans during each period presented: Three Months Ended March 31, 2020 March 31, 2019 HELOCs converted to amortizing loans $ 11 $ 25 The following table presents when current outstanding HELOCs will convert to amortizing loans: March 31, 2020 Balance Converted to an amortizing loan by period end $ 475 Within 1 year 43 > 1 year – 3 years 83 > 3 years – 5 years 138 > 5 years 328 Total $ 1,067

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2020
Variable Interest Entities [Abstract]
Aggregate Assets, Liabilities and Maximum Exposure to Loss	The aggregate assets, liabilities, and maximum exposure to loss from those VIEs in which Schwab holds a variable interest, but is not the primary beneficiary, are summarized in the table below: March 31, 2020 December 31, 2019 Aggregate Aggregate Maximum Aggregate Aggregate Maximum LIHTC investments (1) $ 513 $ 261 $ 513 $ 516 $ 275 $ 516 Other CRA investments (2) 117 — 152 120 — 154 Total $ 630 $ 261 $ 665 $ 636 $ 275 $ 670 (1) Aggregate assets and aggregate liabilities are included in other assets and accrued expenses and other liabilities, respectively, on the condensed consolidated balance sheets. (2) Other CRA investments are recorded using either the adjusted cost method, equity method, held for investment loans at amortized cost, or as AFS securities. Aggregate assets are included in AFS securities, bank loans – net, or other assets on the condensed consolidated balance sheets.

Bank Deposits (Tables)

Bank Deposits (Tables)	3 Months Ended
	Mar. 31, 2020
Banking and Thrift [Abstract]
Deposits from Banking Clients Consisting of Interest Bearing and Noninterest Bearing Deposits	Bank deposits consist of interest-bearing and non-interest-bearing deposits as follows: March 31, 2020 December 31, 2019 Interest-bearing deposits: Deposits swept from brokerage accounts $ 257,370 $ 201,531 Checking 13,657 12,650 Savings and other 5,750 5,168 Total interest-bearing deposits 276,777 219,349 Non-interest-bearing deposits 700 745 Total bank deposits $ 277,477 $ 220,094

Borrowings (Tables)

Borrowings (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Long-term Debt Including Unamortized Debt Discounts and Premiums	The following table lists long-term debt by instrument outstanding as of March 31, 2020 and December 31, 2019 . Date of Principal Amount Outstanding Issuance March 31, 2020 December 31, 2019 Fixed-rate Senior Notes: 4.450% due July 22, 2020 07/22/10 $ 700 $ 700 3.250% due May 21, 2021 05/22/18 600 600 3.225% due September 1, 2022 08/29/12 256 256 2.650% due January 25, 2023 12/07/17 800 800 3.550% due February 1, 2024 10/31/18 500 500 3.000% due March 10, 2025 03/10/15 375 375 4.200% due March 24, 2025 03/24/20 600 — 3.850% due May 21, 2025 05/22/18 750 750 3.450% due February 13, 2026 11/13/15 350 350 3.200% due March 2, 2027 03/02/17 650 650 3.200% due January 25, 2028 12/07/17 700 700 4.000% due February 1, 2029 10/31/18 600 600 3.250% due May 22, 2029 05/22/19 600 600 4.625% due March 22, 2030 03/24/20 500 — Floating-rate Senior Notes: Three-month LIBOR + 0.32% due May 21, 2021 05/22/18 600 600 Total Senior Notes 8,581 7,481 Unamortized discount — net (14 ) (14 ) Debt issuance costs (45 ) (37 ) Total long-term debt $ 8,522 $ 7,430
Annual Maturities on Long-term Debt Outstanding	Annual maturities on long-term debt outstanding at March 31, 2020 are as follows: Maturities 2020 $ 700 2021 1,200 2022 256 2023 800 2024 500 Thereafter 5,125 Total maturities 8,581 Unamortized discount — net (14 ) Debt issuance costs (45 ) Total long-term debt $ 8,522

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Commitments to Purchase or Sell	The Company’s commitments to extend credit on bank lines of credit and to purchase First Mortgages are as follows: March 31, 2020 December 31, 2019 Commitments to extend credit related to unused HELOCs, PALs, and other lines of credit $ 9,708 $ 10,753 Commitments to purchase First Mortgage loans 3,095 1,521 Total $ 12,803 $ 12,274

Financial Instruments Subject_2

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Tables)	3 Months Ended
	Mar. 31, 2020
Offsetting [Abstract]
Offsetting Assets and Liabilities	The following table presents information about our resale agreements and securities lending activity depicting the potential effect of rights of setoff between these recognized assets and recognized liabilities. Gross Gross Amounts Net Amounts Gross Amounts Not Offset in the Net Counterparty Collateral March 31, 2020 Assets Resale agreements (1) $ 17,044 $ — $ 17,044 $ — $ (17,044 ) (2) $ — Securities borrowed (3) 78 — 78 (71 ) (6 ) 1 Total $ 17,122 $ — $ 17,122 $ (71 ) $ (17,050 ) $ 1 Liabilities Securities loaned (4,5) $ 1,335 $ — $ 1,335 $ (71 ) $ (1,106 ) $ 158 Total $ 1,335 $ — $ 1,335 $ (71 ) $ (1,106 ) $ 158 December 31, 2019 Assets Resale agreements (1) $ 9,028 $ — $ 9,028 $ — $ (9,028 ) (2) $ — Securities borrowed (3) 735 — 735 (730 ) (5 ) — Total $ 9,763 $ — $ 9,763 $ (730 ) $ (9,033 ) $ — Liabilities Securities loaned (4,5) $ 1,251 $ — $ 1,251 $ (730 ) $ (445 ) $ 76 Total $ 1,251 $ — $ 1,251 $ (730 ) $ (445 ) $ 76 (1) Included in cash and investments segregated and on deposit for regulatory purposes in the condensed consolidated balance sheets. (2) Actual collateral was greater than or equal to the value of the related assets. At March 31, 2020 and December 31, 2019 , the fair value of collateral received in connection with resale agreements that are available to be repledged or sold was $17.2 billion and $9.2 billion , respectively. (3) Included in other assets in the condensed consolidated balance sheets. (4) Included in accrued expenses and other liabilities in the condensed consolidated balance sheets. The cash collateral received from counterparties under securities lending transactions was equal to or greater than the market value of the securities loaned at March 31, 2020 and December 31, 2019 . (5) Securities loaned are predominantly comprised of equity securities held in client brokerage accounts with overnight and continuous remaining contractual maturities.
Summary of the Fair Value of Client Securities Available to Utilize as Collateral and Amounts Pledged	The following table summarizes the fair value of client securities that were available, under such regulations, that could have been used as collateral, as well as the fair value of securities that we had pledged under such regulations and from securities borrowed transactions: March 31, 2020 December 31, 2019 Fair value of client securities available to be pledged $ 22,896 $ 26,685 Fair value of securities pledged for: Fulfillment of requirements with the Options Clearing Corporation (1) $ 4,622 $ 2,171 Fulfillment of client short sales 2,102 2,293 Securities lending to other broker-dealers 1,277 1,017 Total collateral pledged $ 8,001 $ 5,481 Note: Excludes amounts available and pledged for securities lending from fully-paid client securities. The fair value of fully-paid client securities available and pledged was $104 million as of March 31, 2020 and $142 million as of December 31, 2019 . (1) Securities pledged to fulfill client margin requirements for open option contracts established with the Options Clearing Corporation.

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following tables present the fair value hierarchy for assets measured at fair value on a recurring basis. Liabilities recorded at fair value were not material, and therefore are not included in the following tables: March 31, 2020 Level 1 Level 2 Level 3 Balance at Cash equivalents: Money market funds $ 5,152 $ — $ — $ 5,152 Commercial paper — 4,057 — 4,057 Total cash equivalents 5,152 4,057 — 9,209 Investments segregated and on deposit for regulatory purposes: Certificates of deposit — 1,949 — 1,949 U.S. Government securities — 12,649 — 12,649 Total investments segregated and on deposit for regulatory purposes — 14,598 — 14,598 Available for sale securities: U.S. agency mortgage-backed securities — 179,595 — 179,595 Asset-backed securities — 22,481 — 22,481 Corporate debt securities — 11,222 — 11,222 U.S. Treasury securities — 3,664 — 3,664 U.S. state and municipal securities — 1,578 — 1,578 Non-agency commercial mortgage-backed securities — 1,226 — 1,226 Certificates of deposit — 998 — 998 Commercial paper — 396 — 396 Foreign government agency securities — 51 — 51 Other — 21 — 21 Total available for sale securities — 221,232 — 221,232 Other assets: Equity and bond mutual funds 379 — — 379 U.S. Government securities — 251 — 251 State and municipal debt obligations — 41 — 41 Equity, corporate debt, and other securities 3 21 — 24 Total other assets 382 313 — 695 Total $ 5,534 $ 240,200 $ — $ 245,734 December 31, 2019 Level 1 Level 2 Level 3 Balance at Cash equivalents: Money market funds $ 5,179 $ — $ — $ 5,179 Commercial paper — 2,498 — 2,498 Total cash equivalents 5,179 2,498 — 7,677 Investments segregated and on deposit for regulatory purposes: Certificates of deposit — 1,351 — 1,351 U.S. Government securities — 7,276 — 7,276 Total investments segregated and on deposit for regulatory purposes — 8,627 — 8,627 Available for sale securities: U.S. agency mortgage-backed securities — 46,155 — 46,155 Corporate debt securities — 5,484 — 5,484 Asset-backed securities — 4,987 — 4,987 U.S. Treasury securities — 3,384 — 3,384 Certificates of deposit — 1,004 — 1,004 Commercial paper — 395 — 395 Non-agency commercial mortgage-backed securities — 13 — 13 Total available for sale securities — 61,422 — 61,422 Other assets: Equity and bond mutual funds 442 — — 442 U.S. Government securities — 202 — 202 State and municipal debt obligations — 47 — 47 Equity, corporate debt, and other securities 5 22 — 27 Total other assets 447 271 — 718 Total $ 5,626 $ 72,818 $ — $ 78,444
Fair Value of Other Financial Instruments	The following tables present the fair value hierarchy for other financial instruments: March 31, 2020 Carrying Level 1 Level 2 Level 3 Balance at Assets Cash and cash equivalents $ 59,249 $ 59,249 $ — $ — $ 59,249 Cash and investments segregated and on deposit for 19,668 2,637 17,031 — 19,668 Receivables from brokerage clients — net 18,998 — 18,998 — 18,998 Bank loans — net: First Mortgages 12,777 — 12,969 — 12,969 HELOCs 1,063 — 1,054 — 1,054 Pledged asset lines 5,467 — 5,467 — 5,467 Other 214 — 214 — 214 Total bank loans — net 19,521 — 19,704 — 19,704 Other assets 812 — 812 — 812 Liabilities Bank deposits $ 277,477 $ — $ 277,477 $ — $ 277,477 Payables to brokerage clients 49,251 — 49,251 — 49,251 Accrued expenses and other liabilities 4,648 — 4,648 — 4,648 Long-term debt 8,522 — 8,736 — 8,736 December 31, 2019 Carrying Level 1 Level 2 Level 3 Balance at Assets Cash and cash equivalents $ 21,668 $ 21,668 $ — $ — $ 21,668 Cash and investments segregated and on deposit for 11,807 2,792 9,015 — 11,807 Receivables from brokerage clients — net 21,763 — 21,763 — 21,763 Held to maturity securities: U.S. agency mortgage-backed securities 109,325 — 110,566 — 110,566 Asset-backed securities 17,806 — 17,771 — 17,771 Corporate debt securities 4,661 — 4,718 — 4,718 U.S. state and municipal securities 1,301 — 1,404 — 1,404 Non-agency commercial mortgage-backed securities 1,119 — 1,141 — 1,141 U.S. Treasury securities 223 — 228 — 228 Certificates of deposit 200 — 200 — 200 Foreign government agency securities 50 — 50 — 50 Other 21 — 21 — 21 Total held to maturity securities 134,706 — 136,099 — 136,099 Bank loans — net: First Mortgages 11,693 — 11,639 — 11,639 HELOCs 1,113 — 1,153 — 1,153 Pledged asset lines 5,206 — 5,206 — 5,206 Other 200 — 200 — 200 Total bank loans — net 18,212 — 18,198 — 18,198 Other assets 1,014 — 1,014 — 1,014 Liabilities Bank deposits $ 220,094 $ — $ 220,094 $ — $ 220,094 Payables to brokerage clients 39,220 — 39,220 — 39,220 Accrued expenses and other liabilities 1,882 — 1,882 — 1,882 Long-term debt 7,430 — 7,775 — 7,775

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Preferred Stock Issued and Outstanding	The Company’s preferred stock issued and outstanding is as follows: Liquidation Preference Per Share Dividend Rate in Effect at March 31, 2020 Earliest Redemption Date Date at Which Dividend Rate Becomes Floating Floating Annual Rate of Three-Month LIBOR plus: Shares Issued and Outstanding (in thousands) at Carrying Value at March 31, (1) December 31, 2019 (1) March 31, 2020 December 31, 2019 Issue Date Fixed-rate: Series C 600 600 $ 1,000 $ 585 $ 585 08/03/15 6.000 % 12/01/20 N/A N/A Series D 750 750 1,000 728 728 03/07/16 5.950 % 06/01/21 N/A N/A Fixed-to-floating-rate: Series A 400 400 1,000 397 397 01/26/12 7.000 % 02/01/22 02/01/22 4.820 % Series E 6 6 100,000 591 591 10/31/16 4.625 % 03/01/22 03/01/22 3.315 % Series F 5 5 100,000 492 492 10/31/17 5.000 % 12/01/27 12/01/27 2.575 % Total preferred stock 1,761 1,761 $ 2,793 $ 2,793 (1) Represented by depositary shares, except for Series A. N/A Not applicable.
Dividends Declared	Dividends declared on the Company’s preferred stock are as follows: Three Months Ended March 31, 2020 2019 Total Per Share Total Per Share Series A $ — $ — $ — $ — Series C 9.0 15.00 9.0 15.00 Series D 11.2 14.88 11.2 14.88 Series E 13.9 2,312.50 13.9 2,312.50 Series F — — — — Total $ 34.1 $ 34.1

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Components of Other Comprehensive Income (Loss)	The components of other comprehensive income (loss) are as follows: 2020 2019 Three Months Ended March 31, Before Tax Net of Before Tax Net of Change in net unrealized gain (loss) on available for sale securities: Net unrealized gain (loss) $ 5,151 $ (1,244 ) $ 3,907 $ 227 $ (54 ) $ 173 Other reclassifications included in other revenue — — — (1 ) — (1 ) Amortization of amounts previously recorded upon transfer to held to maturity — — — 12 (3 ) 9 Other comprehensive income (loss) $ 5,151 $ (1,244 ) $ 3,907 $ 238 $ (57 ) $ 181
Accumulated Other Comprehensive Income Balances	AOCI balances are as follows: Total AOCI Balance at December 31, 2018 $ (252 ) Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 154 Net unrealized gain on securities transferred to available for sale from held to maturity (1) 19 Other reclassifications included in other revenue (1 ) Held to maturity securities: Amortization of amounts previously recorded upon transfer to held to maturity from available for sale 9 Balance at March 31, 2019 $ (71 ) Balance at December 31, 2019 $ 88 Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 2,850 Net unrealized gain on securities transferred to available for sale from held to maturity (2) 1,057 Balance at March 31, 2020 $ 3,995 (1) In the first quarter of 2019, the Company made an election to transfer a portion of its HTM securities to AFS as part of its adoption of ASU 2017-12 , “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities”. The transfer resulted in a net of tax increase to AOCI of $19 million . (2) On January 1, 2020, the Company transferred all of its investment securities designated as HTM to the AFS category. The transfer resulted in a net of tax increase to AOCI of $ 1.1 billion . See Note 4 for additional discussion on the 2020 transfer of HTM securities to AFS.

Regulatory Requirements (Tables

Regulatory Requirements (Tables)	3 Months Ended
	Mar. 31, 2020
Banking and Thrift [Abstract]
Regulatory Capital and Ratios	The regulatory capital and ratios for CSC (consolidated) and CSB are as follows: Actual (1) Minimum to be Minimum Capital Requirement March 31, 2020 Amount Ratio Amount Ratio Amount Ratio (2) CSC Common Equity Tier 1 Risk-Based Capital $ 18,197 18.4 % N/A $ 4,457 4.5 % Tier 1 Risk-Based Capital 20,990 21.2 % N/A 5,942 6.0 % Total Risk-Based Capital 21,023 21.2 % N/A 7,923 8.0 % Tier 1 Leverage 20,990 6.9 % N/A 12,137 4.0 % Supplementary Leverage Ratio 20,990 6.8 % N/A 9,309 3.0 % CSB Common Equity Tier 1 Risk-Based Capital $ 15,413 19.7 % $ 5,075 6.5 % $ 3,514 4.5 % Tier 1 Risk-Based Capital 15,413 19.7 % 6,247 8.0 % 4,685 6.0 % Total Risk-Based Capital 15,445 19.8 % 7,808 10.0 % 6,247 8.0 % Tier 1 Leverage 15,413 6.9 % 11,114 5.0 % 8,891 4.0 % Supplementary Leverage Ratio 15,413 6.7 % N/A N/A 6,867 3.0 % December 31, 2019 CSC Common Equity Tier 1 Risk-Based Capital $ 17,660 19.5 % N/A $ 4,073 4.5 % Tier 1 Risk-Based Capital 20,453 22.6 % N/A 5,431 6.0 % Total Risk-Based Capital 20,472 22.6 % N/A 7,241 8.0 % Tier 1 Leverage 20,453 7.3 % N/A 11,189 4.0 % Supplementary Leverage Ratio 20,453 7.1 % N/A 8,604 3.0 % CSB Common Equity Tier 1 Risk-Based Capital $ 14,819 20.7 % $ 4,649 6.5 % $ 3,218 4.5 % Tier 1 Risk-Based Capital 14,819 20.7 % 5,722 8.0 % 4,291 6.0 % Total Risk-Based Capital 14,837 20.7 % 7,152 10.0 % 5,722 8.0 % Tier 1 Leverage 14,819 7.1 % 10,486 5.0 % 8,389 4.0 % Supplementary Leverage Ratio 14,819 6.8 % N/A N/A 6,497 3.0 % (1) In the interagency regulatory capital and liquidity rules adopted in October 2019, Category III banking organizations such as CSC were given the ability to opt-out of the inclusion of AOCI in regulatory capital, and CSC made this opt-out election as of January 1, 2020. Therefore, AOCI is excluded from the amounts and ratios presented as of March 31, 2020. In 2019, CSC and CSB were required to include all components of AOCI in regulatory capital; the amounts and ratios for December 31, 2019 are presented on this basis. (2) Under the Basel III capital rule, CSC and CSB are also required to maintain a capital conservation buffer and a countercyclical capital buffer above the regulatory minimum risk-based capital ratios. The capital conservation buffer and countercyclical capital buffer were 2.5% and zero percent, respectively, for both periods presented. If either buffer falls below the minimum requirement, the Company would be subject to limits on capital distributions and discretionary bonus payments to executive officers. At March 31, 2020 , the minimum capital requirement plus capital conservation buffer and countercyclical capital buffer for Common Equity Tier 1 Risk-Based Capital, Tier 1 Risk-Based Capital, and Total Risk-Based Capital ratios were 7.0%, 8.5%, and 10.5%, respectively. N/A Not applicable.
Net Capital and Net Capital Requirements	Net capital and net capital requirements for CS&Co are as follows: March 31, 2020 December 31, 2019 Net Capital $ 3,472 $ 3,700 Minimum net capital required 0.250 0.250 2% of aggregate debit balances 419 446 Net Capital in excess of required net capital $ 3,053 $ 3,254

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Financial Information for Reportable Segments	Financial information for the segments is presented in the following table: Investor Services Advisor Services Total Three Months Ended March 31, 2020 2019 2020 2019 2020 2019 Net Revenues Net interest revenue $ 1,128 $ 1,195 $ 444 $ 486 $ 1,572 $ 1,681 Asset management and administration fees 600 533 227 222 827 755 Trading revenue (1) 119 141 69 76 188 217 Other (1) 20 42 10 28 30 70 Total net revenues 1,867 1,911 750 812 2,617 2,723 Expenses Excluding Interest 1,154 1,062 416 397 1,570 1,459 Income before taxes on income $ 713 $ 849 $ 334 $ 415 $ 1,047 $ 1,264 (1) In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.

Revenue Recognition (Disaggrega

Revenue Recognition (Disaggregated Revenue) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Interest revenue		$ 1,708	$ 1,998
Interest expense		(136)	(317)
Net interest revenue		1,572	1,681
Other (1)	[1]	30	70
Total net revenues		2,617	2,723
Mutual funds, ETFs, and CTFs [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		452	414
Advice solutions [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		312	278
Other [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		63	63
Asset management and administration fees [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		827	755
Commissions [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		113	163
Principal Transactions [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		20	22
Order Flow Revenue [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue		55	32
Trading revenue [Member]
Disaggregation of Revenue [Line Items]
Asset management and administration fees and Trading revenue	[1]	$ 188	$ 217
[1]	In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.

Revenue Recognition (Capitalize

Revenue Recognition (Capitalized Contract Costs and Contract Balances) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Receivables from contracts with customers	$ 588	$ 356

Investment Securities (Amortize

Investment Securities (Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Securities Available for Sale and Held to Maturity Securities) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Available for sale securities:
Amortized Cost	$ 215,873		$ 61,155
Gross Unrealized Gains	6,356		407
Gross Unrealized Losses	997		140
Fair Value	221,232		61,422
Held to maturity securities:
Amortized Cost	0	$ 134,700	134,706
Gross Unrealized Gains		$ 1,400	1,758
Gross Unrealized Losses			365
Fair Value			136,099
U.S. agency mortgage-backed securities [Member]
Available for sale securities:
Amortized Cost	173,812		45,964
Gross Unrealized Gains	6,007		312
Gross Unrealized Losses	224		121
Fair Value	179,595		46,155
Held to maturity securities:
Amortized Cost			109,325
Gross Unrealized Gains			1,521
Gross Unrealized Losses			280
Fair Value			110,566
Asset-backed securities [Member]
Available for sale securities:
Amortized Cost	23,077		4,970
Gross Unrealized Gains	49		30
Gross Unrealized Losses	645		13
Fair Value	22,481		4,987
Held to maturity securities:
Amortized Cost			17,806
Gross Unrealized Gains			50
Gross Unrealized Losses			85
Fair Value			17,771
Corporate debt securities [Member]
Available for sale securities:
Amortized Cost	11,192		5,427
Gross Unrealized Gains	136		57
Gross Unrealized Losses	106		0
Fair Value	11,222		5,484
Held to maturity securities:
Amortized Cost			4,661
Gross Unrealized Gains			57
Gross Unrealized Losses			0
Fair Value			4,718
U.S. Treasury securities [Member]
Available for sale securities:
Amortized Cost	3,616		3,387
Gross Unrealized Gains	48		3
Gross Unrealized Losses	0		6
Fair Value	3,664		3,384
Held to maturity securities:
Amortized Cost			223
Gross Unrealized Gains			5
Gross Unrealized Losses			0
Fair Value			228
U.S. state and municipal securities [Member]
Available for sale securities:
Amortized Cost	1,493
Gross Unrealized Gains	96
Gross Unrealized Losses	11
Fair Value	1,578
Held to maturity securities:
Amortized Cost			1,301
Gross Unrealized Gains			103
Gross Unrealized Losses			0
Fair Value			1,404
Non-agency commercial mortgage-backed securities [Member]
Available for sale securities:
Amortized Cost	1,215		13
Gross Unrealized Gains	16		0
Gross Unrealized Losses	5		0
Fair Value	1,226		13
Held to maturity securities:
Amortized Cost			1,119
Gross Unrealized Gains			22
Gross Unrealized Losses			0
Fair Value			1,141
Certificates of deposit [Member]
Available for sale securities:
Amortized Cost	1,000		1,000
Gross Unrealized Gains	3		4
Gross Unrealized Losses	5		0
Fair Value	998		1,004
Held to maturity securities:
Amortized Cost			200
Gross Unrealized Gains			0
Gross Unrealized Losses			0
Fair Value			200
Commercial paper [Member]
Available for sale securities:
Amortized Cost	397		394
Gross Unrealized Gains	0		1
Gross Unrealized Losses	1		0
Fair Value	396		395
Available-for-sale securities, current	4,100		2,500
Foreign government agency securities [Member]
Available for sale securities:
Amortized Cost	50
Gross Unrealized Gains	1
Gross Unrealized Losses	0
Fair Value	51
Held to maturity securities:
Amortized Cost			50
Gross Unrealized Gains			0
Gross Unrealized Losses			0
Fair Value			50
Other [Member]
Available for sale securities:
Amortized Cost	21
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Value	$ 21
Held to maturity securities:
Amortized Cost			21
Gross Unrealized Gains			0
Gross Unrealized Losses			0
Fair Value			$ 21
Corporate debt securities issued by financial services industry [Member]
Held to maturity securities:
AFS and HTM securities percentage	32.00%		32.00%
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member]
Held to maturity securities:
Asset-backed securities percentage	42.00%		43.00%
Collateralized Credit Card Securities [Member]
Held to maturity securities:
Asset-backed securities percentage	43.00%		42.00%

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Jan. 01, 2020
Schedule of Held-to-maturity Securities [Line Items]
Consolidated assets	$ 370,779,000,000	$ 294,005,000,000
Held to maturity securities amortized cost	0	134,706,000,000	$ 134,700,000,000
Unrealized gain		1,758,000,000	$ 1,400,000,000
Accrued interest for AFS securities	489,000,000
Accrued interest for AFS and HTM securities		471,000,000
Write-offs of accrued interest receivable on AFS securities	0	0
Write-offs of accrued interest receivable on HTM securities		0
Credit losses recognized in earnings	0
Available-for-sale, written down to fair value	0
Available-for-sale, allowance for credit loss	0
OTTI recognized in earnings or other comprehensive income		$ 0
Deposits [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of pledged securities	1,100,000,000
Federal Reserve Bank Advances [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of pledged securities	8,200,000,000
Federal Home Loan Bank of San Francisco [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of pledged securities	$ 35,700,000,000

Investment Securities (Availabl

Investment Securities (Available For Sale and Held to Maturity Securities with Unrealized Losses, Aggregated by Category and Period of Continuous Unrealized Loss) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Available for sale securities:
Less than 12 months Fair Value	$ 33,534	$ 17,493
Less than 12 months Unrealized Losses	743	100
12 months or longer Fair Value	14,311	8,133
12 months or longer Unrealized Losses	254	40
Total Fair Value	47,845	25,626
Total Unrealized Losses	997	140
Held to maturity securities:
Less than 12 months Fair Value		23,690
Less than 12 months Unrealized Losses		163
12 months or longer Fair Value		21,808
12 months or longer Unrealized Losses		202
Total Fair Value		45,498
Total Unrealized Losses		365
Total securities with unrealized losses
Less than 12 months Fair Value		41,183
Less than 12 months Unrealized Losses		263
12 months or longer Fair Value		29,941
12 months or longer Unrealized Losses		242
Total Fair Value		71,124
Total Unrealized Losses		505
Asset-backed securities [Member]
Available for sale securities:
Less than 12 months Fair Value	15,852	960
Less than 12 months Unrealized Losses	515	6
12 months or longer Fair Value	2,638	298
12 months or longer Unrealized Losses	130	7
Total Fair Value	18,490	1,258
Total Unrealized Losses	645	13
Held to maturity securities:
Less than 12 months Fair Value		7,507
Less than 12 months Unrealized Losses		63
12 months or longer Fair Value		2,898
12 months or longer Unrealized Losses		22
Total Fair Value		10,405
Total Unrealized Losses		85
U.S. agency mortgage-backed securities [Member]
Available for sale securities:
Less than 12 months Fair Value	11,077	16,023
Less than 12 months Unrealized Losses	100	94
12 months or longer Fair Value	11,661	6,592
12 months or longer Unrealized Losses	124	27
Total Fair Value	22,738	22,615
Total Unrealized Losses	224	121
Held to maturity securities:
Less than 12 months Fair Value		16,183
Less than 12 months Unrealized Losses		100
12 months or longer Fair Value		18,910
12 months or longer Unrealized Losses		180
Total Fair Value		35,093
Total Unrealized Losses		280
Corporate debt securities [Member]
Available for sale securities:
Less than 12 months Fair Value	4,835
Less than 12 months Unrealized Losses	106
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Total Fair Value	4,835
Total Unrealized Losses	106
Certificates of deposit [Member]
Available for sale securities:
Less than 12 months Fair Value	795
Less than 12 months Unrealized Losses	5
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Total Fair Value	795
Total Unrealized Losses	5
Non-agency commercial mortgage-backed securities [Member]
Available for sale securities:
Less than 12 months Fair Value	397
Less than 12 months Unrealized Losses	5
12 months or longer Fair Value	12
12 months or longer Unrealized Losses	0
Total Fair Value	409
Total Unrealized Losses	5
Commercial paper [Member]
Available for sale securities:
Less than 12 months Fair Value	396
Less than 12 months Unrealized Losses	1
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Total Fair Value	396
Total Unrealized Losses	1
U.S. state and municipal securities [Member]
Available for sale securities:
Less than 12 months Fair Value	182
Less than 12 months Unrealized Losses	11
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Total Fair Value	182
Total Unrealized Losses	$ 11
U.S. Treasury securities [Member]
Available for sale securities:
Less than 12 months Fair Value		510
Less than 12 months Unrealized Losses		0
12 months or longer Fair Value		1,243
12 months or longer Unrealized Losses		6
Total Fair Value		1,753
Total Unrealized Losses		$ 6

Investment Securities (Maturiti

Investment Securities (Maturities of Securities Available for Sale and Held to Maturity) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Available for sale securities, fair value
Within 1 year	$ 7,543
After 1 year through 5 years	35,590
After 5 years through 10 years	59,581
After 10 years	118,518
Fair Value	221,232	$ 61,422
Available for sale securities, amortized cost
Within 1 year	7,531
After 1 year through 5 years	35,024
After 5 years through 10 years	57,258
After 10 years	116,060
Amortized Cost	215,873	61,155
U.S. agency mortgage-backed securities [Member]
Available for sale securities, fair value
Within 1 year	1,158
After 1 year through 5 years	18,885
After 5 years through 10 years	51,687
After 10 years	107,865
Fair Value	179,595	46,155
Available for sale securities, amortized cost
Amortized Cost	173,812	45,964
Asset-backed securities [Member]
Available for sale securities, fair value
Within 1 year	43
After 1 year through 5 years	7,818
After 5 years through 10 years	6,091
After 10 years	8,529
Fair Value	22,481	4,987
Available for sale securities, amortized cost
Amortized Cost	23,077	4,970
Corporate debt securities [Member]
Available for sale securities, fair value
Within 1 year	2,410
After 1 year through 5 years	7,612
After 5 years through 10 years	1,200
After 10 years	0
Fair Value	11,222	5,484
Available for sale securities, amortized cost
Amortized Cost	11,192	5,427
U.S. Treasury securities [Member]
Available for sale securities, fair value
Within 1 year	2,834
After 1 year through 5 years	830
After 5 years through 10 years	0
After 10 years	0
Fair Value	3,664	3,384
Available for sale securities, amortized cost
Amortized Cost	3,616	3,387
U.S. state and municipal securities [Member]
Available for sale securities, fair value
Within 1 year	0
After 1 year through 5 years	98
After 5 years through 10 years	603
After 10 years	877
Fair Value	1,578
Available for sale securities, amortized cost
Amortized Cost	1,493
Non-agency commercial mortgage-backed securities [Member]
Available for sale securities, fair value
Within 1 year	0
After 1 year through 5 years	0
After 5 years through 10 years	0
After 10 years	1,226
Fair Value	1,226	13
Available for sale securities, amortized cost
Amortized Cost	1,215	13
Certificates of deposit [Member]
Available for sale securities, fair value
Within 1 year	702
After 1 year through 5 years	296
After 5 years through 10 years	0
After 10 years	0
Fair Value	998	1,004
Available for sale securities, amortized cost
Amortized Cost	1,000	1,000
Commercial paper [Member]
Available for sale securities, fair value
Within 1 year	396
After 1 year through 5 years	0
After 5 years through 10 years	0
After 10 years	0
Fair Value	396	395
Available for sale securities, amortized cost
Amortized Cost	397	$ 394
Foreign government agency securities [Member]
Available for sale securities, fair value
Within 1 year	0
After 1 year through 5 years	51
After 5 years through 10 years	0
After 10 years	0
Fair Value	51
Available for sale securities, amortized cost
Amortized Cost	50
Other [Member]
Available for sale securities, fair value
Within 1 year	0
After 1 year through 5 years	0
After 5 years through 10 years	0
After 10 years	21
Fair Value	21
Available for sale securities, amortized cost
Amortized Cost	$ 21

Investment Securities (Proceeds

Investment Securities (Proceeds and Gross Realized Gains And Losses from Sales of Securities Available for Sale) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of available for sale securities	$ 69	$ 10,652
Gross realized gains	0	3
Gross realized losses	$ 0	$ 2

Bank Loans and Related Allowa_3

Bank Loans and Related Allowance for Credit Losses (Composition of Bank Loans and Delinquency Analysis by Loan Segment) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Current	$ 19,480,000,000	$ 18,173,000,000
Past due and other nonaccrual loans	70,000,000	57,000,000
Total loans	19,550,000,000	18,230,000,000
Allowance for credit losses	29,000,000	18,000,000	$ 21,000,000	$ 21,000,000
Total bank loans – net	19,521,000,000	18,212,000,000
Loans 90 days past due and still accruing	0	0
30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	40,000,000	30,000,000
60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	7,000,000	5,000,000
More Than 90 Days Past Due and Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	23,000,000	22,000,000
First Mortgage [Member]
Financing Receivable, Past Due [Line Items]
Current	12,751,000,000	11,665,000,000
Past due and other nonaccrual loans	47,000,000	39,000,000
Total loans	12,798,000,000	11,704,000,000
Allowance for credit losses	21,000,000	11,000,000	14,000,000	14,000,000
Total bank loans – net	12,777,000,000	11,693,000,000
First Mortgage [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	32,000,000	24,000,000
First Mortgage [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	3,000,000	4,000,000
First Mortgage [Member] | More Than 90 Days Past Due and Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	12,000,000	11,000,000
HELOCs [Member]
Financing Receivable, Past Due [Line Items]
Current	1,055,000,000	1,105,000,000
Past due and other nonaccrual loans	12,000,000	12,000,000
Total loans	1,067,000,000	1,117,000,000
Allowance for credit losses	4,000,000	4,000,000	5,000,000	5,000,000
Total bank loans – net	1,063,000,000	1,113,000,000
HELOCs [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	2,000,000	2,000,000
HELOCs [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	1,000,000	1,000,000
HELOCs [Member] | More Than 90 Days Past Due and Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	9,000,000	9,000,000
Pledged asset lines [Member]
Financing Receivable, Past Due [Line Items]
Current	5,458,000,000	5,202,000,000
Past due and other nonaccrual loans	9,000,000	4,000,000
Total loans	5,467,000,000	5,206,000,000
Allowance for credit losses	0	0
Total bank loans – net	5,467,000,000	5,206,000,000
Pledged asset lines [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	6,000,000	4,000,000
Pledged asset lines [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	3,000,000	0
Pledged asset lines [Member] | More Than 90 Days Past Due and Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	0	0
Other [Member]
Financing Receivable, Past Due [Line Items]
Current	216,000,000	201,000,000
Past due and other nonaccrual loans	2,000,000	2,000,000
Total loans	218,000,000	203,000,000
Allowance for credit losses	4,000,000	3,000,000	$ 2,000,000	$ 2,000,000
Total bank loans – net	214,000,000	200,000,000
Other [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	0	0
Other [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	0	0
Other [Member] | More Than 90 Days Past Due and Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans	2,000,000	2,000,000
First Mortgage and HELOC [Member]
Financing Receivable, Past Due [Line Items]
Unamortized premiums and discounts and direct origination costs	$ 77,000,000	$ 74,000,000
First Mortgage and HELOC [Member] | Loans, Geographic Area [Member] | California [Member]
Financing Receivable, Past Due [Line Items]
Concentration risk percentage	45.00%	45.00%

Bank Loans and Related Allowa_4

Bank Loans and Related Allowance for Credit Losses (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	$ 46	$ 46
First Mortgage and HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans pledged as collateral	11,900
Adjustable Rate First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bank loans	$ 11,400
Percent of loans with interest-only payments	25.00%
Percent of interest only adjustable rate	72.00%
Adjustable Rate First Mortgage [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed rate interest rate period	3 years
Interest-only reset period	3 years
Adjustable Rate First Mortgage [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed rate interest rate period	10 years
HELOCs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan term	30 years
Initial draw period	10 years
Converting to amortizing loans period	20 years
Percent of loan balance outstanding, borrowers paid only minimum due	53.00%
Home Equity Secured By Second Liens [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total bank loans	$ 867

Bank Loans and Related Allowa_5

Bank Loans and Related Allowance for Credit Losses (Changes in Allowance for Credit Losses) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 18	$ 21
Charge-offs	0	0
Recoveries	0	1
Provision for loan losses	10	(1)
Balance at end of period	29	21
First Mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	11	14
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	9	0
Balance at end of period	21	14
HELOCs [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	4	5
Charge-offs	0	0
Recoveries	0	1
Provision for loan losses	0	(1)
Balance at end of period	4	5
Other [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	3	2
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	1	0
Balance at end of period	4	2
Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	1	0
Adoption of ASU 2016-13 [Member] | First Mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	1	0
Adoption of ASU 2016-13 [Member] | HELOCs [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	0	0
Adoption of ASU 2016-13 [Member] | Other [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 0	$ 0

Bank Loans and Related Allowa_6

Bank Loans and Related Allowance for Credit Losses (Nonperforming Assets and Troubled Debt Restructuring) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonperforming assets	$ 19,550	$ 18,230
Troubled debt restructurings	2	2
Total nonperforming assets and troubled debt restructurings	26	25
Nonperforming Financial Instruments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonperforming assets	24	23
Nonperforming Financial Instruments [Member] | Nonaccrual Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonperforming assets	23	22
Nonperforming Financial Instruments [Member] | Other Real Estate Owned [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonperforming assets	$ 1	$ 1

Bank Loans and Related Allowa_7

Bank Loans and Related Allowance for Credit Losses (Credit Quality Indicators of Bank Loan Portfolio) (Details) $ in Millions	Mar. 31, 2020USD ($)credit_rating	Dec. 31, 2019USD ($)credit_rating
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 19,550	$ 18,230
First Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,952
2019	3,992	4,002
2018	1,085	1,284
2017	1,739	1,911
2016	1,979	2,149
Pre-2016	2,051	2,358
Total loans	$ 12,798	$ 11,704
Percent of Loans on Nonaccrual Status
2020	0.03%
2019	0.03%	0.04%
2018	0.03%	0.04%
2017	0.05%	0.04%
2016	0.08%	0.08%
Pre-2016	0.34%	0.25%
Percent of Loans on Nonaccrual Status	0.09%	0.09%
First Mortgage [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 1,952
2019	3,992	$ 4,002
2018	1,085	1,284
2017	1,739	1,911
2016	1,979	2,149
Pre-2016	2,051	2,358
Total loans	12,798	11,704
First Mortgage [Member] | Origination Loan to Value Ratio 70% and Below [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,578
2019	3,120	3,104
2018	771	906
2017	1,290	1,427
2016	1,669	1,812
Pre-2016	1,453	1,679
Total loans	9,881	8,928
First Mortgage [Member] | Origination Loan to Value Ratio Greater Than 70% Through 90% [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	374
2019	872	898
2018	314	378
2017	449	484
2016	310	337
Pre-2016	594	676
Total loans	2,913	2,773
First Mortgage [Member] | Origination Loan to Value Ratio Greater Than 90% Through 100% [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0	0
2018	0	0
2017	0	0
2016	0	0
Pre-2016	4	3
Total loans	4	3
First Mortgage [Member] | Estimated Current Loan To Value Ratio 70% and Below [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,578
2019	3,168	3,125
2018	884	1,018
2017	1,646	1,790
2016	1,956	2,119
Pre-2016	2,026	2,330
Total loans	11,258	10,382
First Mortgage [Member] | Estimated Current Loan To Value Ratio Greater Than 70% Through 90% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	374
2019	824	877
2018	199	265
2017	93	121
2016	23	30
Pre-2016	22	27
Total loans	1,535	1,320
First Mortgage [Member] | Estimated Current LTV Greater Than 90% Through 100% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0	0
2018	2	1
2017	0	0
2016	0	0
Pre-2016	2	1
Total loans	4	2
First Mortgage [Member] | Estimated Current LTV Greater Than 100% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0	0
2018	0	0
2017	0	0
2016	0	0
Pre-2016	1	0
Total loans	1	0
First Mortgage [Member] | Origination FICO Score Below 620 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0	0
2018	0	0
2017	0	0
2016	0	0
Pre-2016	3	3
Total loans	3	3
First Mortgage [Member] | Origination FICO Score 620 Through 679 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	11
2019	14	12
2018	6	6
2017	14	14
2016	19	20
Pre-2016	20	25
Total loans	84	77
First Mortgage [Member] | Origination FICO Score 680 Through 739 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	222
2019	480	478
2018	193	220
2017	278	304
2016	271	290
Pre-2016	369	421
Total loans	1,813	1,713
First Mortgage [Member] | Origination FICO Score 740 and Above [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,719
2019	3,498	3,512
2018	886	1,058
2017	1,447	1,593
2016	1,689	1,839
Pre-2016	1,659	1,909
Total loans	10,898	9,911
First Mortgage [Member] | Weighted Average Updated FICO Score Below 620 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	4
2019	5	5
2018	3	4
2017	5	5
2016	4	3
Pre-2016	24	25
Total loans	45	42
First Mortgage [Member] | Wighted Average Updated FICO Score 620 Through 679 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	14
2019	49	45
2018	23	36
2017	23	32
2016	21	26
Pre-2016	54	68
Total loans	184	207
First Mortgage [Member] | Weighted Average Updated FICO Score 680 Through 739 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	192
2019	385	474
2018	135	153
2017	184	213
2016	177	199
Pre-2016	264	307
Total loans	1,337	1,346
First Mortgage [Member] | Weighted Average Updated FICO Score 740 and Above [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,742
2019	3,553	3,478
2018	924	1,091
2017	1,527	1,661
2016	1,777	1,921
Pre-2016	1,709	1,958
Total loans	11,232	10,109
HELOCs [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	592	611
HELOCs converted to term loans	475	506
Total loans	$ 1,067	$ 1,117
Percent of Loans on Nonaccrual Status
Revolving HELOCs amortized cost basis	0.14%	0.19%
HELOCs converted to term loans	1.69%	1.57%
Percent of Loans on Nonaccrual Status	0.84%	0.83%
HELOCs [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	$ 592	$ 611
HELOCs converted to term loans	475	506
Total loans	1,067	1,117
HELOCs [Member] | Origination Loan to Value Ratio 70% and Below [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	432	444
HELOCs converted to term loans	331	354
Total loans	763	798
HELOCs [Member] | Origination Loan to Value Ratio Greater Than 70% Through 90% [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	160	167
HELOCs converted to term loans	139	147
Total loans	299	314
HELOCs [Member] | Origination Loan to Value Ratio Greater Than 90% Through 100% [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	0	0
HELOCs converted to term loans	5	5
Total loans	5	5
HELOCs [Member] | Estimated Current Loan To Value Ratio 70% and Below [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	558	578
HELOCs converted to term loans	450	478
Total loans	1,008	1,056
HELOCs [Member] | Estimated Current Loan To Value Ratio Greater Than 70% Through 90% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	34	33
HELOCs converted to term loans	20	23
Total loans	54	56
HELOCs [Member] | Estimated Current LTV Greater Than 90% Through 100% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	0	0
HELOCs converted to term loans	3	3
Total loans	3	3
HELOCs [Member] | Estimated Current LTV Greater Than 100% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	0	0
HELOCs converted to term loans	2	2
Total loans	2	2
HELOCs [Member] | Origination FICO Score Below 620 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	0	0
HELOCs converted to term loans	0	0
Total loans	0	0
HELOCs [Member] | Origination FICO Score 620 Through 679 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	2	1
HELOCs converted to term loans	4	4
Total loans	6	5
HELOCs [Member] | Origination FICO Score 680 Through 739 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	108	114
HELOCs converted to term loans	100	105
Total loans	208	219
HELOCs [Member] | Origination FICO Score 740 and Above [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	482	496
HELOCs converted to term loans	371	397
Total loans	853	893
HELOCs [Member] | Weighted Average Updated FICO Score Below 620 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	5	6
HELOCs converted to term loans	14	15
Total loans	19	21
HELOCs [Member] | Wighted Average Updated FICO Score 620 Through 679 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	14	18
HELOCs converted to term loans	21	22
Total loans	35	40
HELOCs [Member] | Weighted Average Updated FICO Score 680 Through 739 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	84	92
HELOCs converted to term loans	75	80
Total loans	159	172
HELOCs [Member] | Weighted Average Updated FICO Score 740 and Above [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	489	495
HELOCs converted to term loans	365	389
Total loans	854	884
Pledged Asset Lines [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,467	5,206
Pledged Asset Lines [Member] | Weighted Average Loan to Value Ratio =70% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 5,467	$ 5,206
Percent of Loans on Nonaccrual Status
Percent of Loans on Nonaccrual Status	0.00%	0.00%
Weighted Average Updated FICO | credit_rating	769	766

Bank Loans and Related Allowa_8

Bank Loans and Related Allowance for Credit Losses (Convert to Amortizing Loans) (Details) - HELOCs [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOCs converted to amortizing loans	$ 11	$ 25
Converted to an amortizing loan by period end	475
Within 1 year	43
1 year – 3 years	83
3 years – 5 years	138
5 years	328
Total	$ 1,067

Variable Interest Entities (Agg

Variable Interest Entities (Aggregate Assets, Liabilities and Maximum Exposure to Loss) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Total assets	$ 370,779	$ 294,005
Liabilities	344,509	272,260
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Total assets	630	636
Liabilities	261	275
Maximum exposure to loss	665	670
Variable Interest Entity, Not Primary Beneficiary [Member] | LIHTC Investments [Member]
Variable Interest Entity [Line Items]
Total assets	513	516
Liabilities	261	275
Maximum exposure to loss	513	516
Variable Interest Entity, Not Primary Beneficiary [Member] | Other CRA Investments [Member]
Variable Interest Entity [Line Items]
Total assets	117	120
Liabilities	0	0
Maximum exposure to loss	$ 152	$ 154

Bank Deposits (Details)

Bank Deposits (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Interest-bearing deposits:
Deposits swept from brokerage accounts	$ 257,370	$ 201,531
Checking	13,657	12,650
Savings and other	5,750	5,168
Total interest-bearing deposits	276,777	219,349
Non-interest-bearing deposits	700	745
Total bank deposits	$ 277,477	$ 220,094

Borrowings (Long-term Debt Incl

Borrowings (Long-term Debt Including Unamortized Debt Discounts and Premiums) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Senior Notes	$ 8,581	$ 7,481
Unamortized discount — net	(14)	(14)
Debt issuance costs	(45)	(37)
Total long-term debt	$ 8,522	7,430
Senior Notes [Member] | Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	4.45%
Senior Notes	$ 700	700
Senior Notes [Member] | Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.25%
Senior Notes	$ 600	600
Senior Notes [Member] | Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.225%
Senior Notes	$ 256	256
Senior Notes [Member] | Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	2.65%
Senior Notes	$ 800	800
Senior Notes [Member] | Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.55%
Senior Notes	$ 500	500
Senior Notes [Member] | Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.00%
Senior Notes	$ 375	375
Senior Notes [Member] | Senior Notes Due March 2025 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	4.20%
Senior Notes	$ 600	0
Senior Notes [Member] | Senior Notes Due May 2025 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.85%
Senior Notes	$ 750	750
Senior Notes [Member] | Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.45%
Senior Notes	$ 350	350
Senior Notes [Member] | Senior Notes Due 2027 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.20%
Senior Notes	$ 650	650
Senior Notes [Member] | Senior Notes Due 2028 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.20%
Senior Notes	$ 700	700
Senior Notes [Member] | Senior Notes Due 2029 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	4.00%
Senior Notes	$ 600	600
Senior Notes [Member] | Senior Notes Due May 2029 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	3.25%
Senior Notes	$ 600	600
Senior Notes [Member] | Senior Notes Due 2030 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate	4.625%
Senior Notes	$ 500	0
Senior Notes [Member] | Floating Rate Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	$ 600	$ 600
Senior Notes [Member] | Floating Rate Senior Notes Due 2021 [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread rate	0.32%

Borrowings (Annual Maturities o

Borrowings (Annual Maturities on Long-term Debt Outstanding) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
2020	$ 700
2021	1,200
2022	256
2023	800
2024	500
Thereafter	5,125
Total maturities	8,581
Unamortized discount, net	(14)	$ (14)
Debt issuance costs	(45)	(37)
Total long-term debt	$ 8,522	$ 7,430

Borrowings (Narrative) (Details

Borrowings (Narrative) (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Line of Credit Facility [Line Items]
Federal Reserve Bank stock	$ 182,000,000
Federal Home Loan Bank Advances [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity	8,200,000,000	$ 8,500,000,000
Amounts outstanding	0	0
FHLB stock	35,000,000	35,000,000
Federal Home Loan Bank Advances [Member] | Secured Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity	43,600,000,000	34,200,000,000
Amounts outstanding	$ 0	$ 0

Commitments and Contingencies_2

Commitments and Contingencies (Commitments to Extend/Purchase) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitments to purchase	$ 12,803		$ 12,274
First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased during period	2,200	$ 411
Commitments to purchase	3,095		1,521
HELOCs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased during period	107	$ 62
Home Equity Loans and Lines of Credit Pledged Asset Lines and Other Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitments to extend credit related to unused HELOCs, PALs, and other lines of credit	$ 9,708		$ 10,753

Commitments and Contingencies_3

Commitments and Contingencies (Details) account in Millions	Nov. 20, 2019USD ($)	Jul. 25, 2019USD ($)account	Mar. 31, 2020USD ($)	Nov. 25, 2019USD ($)accountshares
Loss Contingencies [Line Items]
Aggregate face amount of letter of credit agreements			$ 20,000,000
Number of brokerage and managed portfolio accounts acquired | account		1,000,000
Client assets acquired		$ 90,000,000,000
Payments to acquire businesses		$ 1,800,000,000
TD Ameritrade [Member]
Loss Contingencies [Line Items]
Number of brokerage and managed portfolio accounts acquired | account				12,000,000
Client assets acquired				$ 1,300,000,000,000
Conversion of shares (in shares) | shares				1.0837
Merger consideration	$ 26,000,000,000
Termination fee			950,000,000
Reimbursement fee			50,000,000
Performance Guarantee [Member]
Loss Contingencies [Line Items]
Liability for guarantees			0
U.S. Treasury securities [Member]
Loss Contingencies [Line Items]
U.S. Treasury securities posted as collateral			212,000,000
Margin Requirements [Member]
Loss Contingencies [Line Items]
Funds drawn under LOC's			$ 0

Financial Instruments Subject_3

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Securities Financing Transaction, Fair Value [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of borrowed securities from other broker-dealers to fulfill short sales by clients	$ 73	$ 719

Financial Instruments Subject_4

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Offsetting Assets and Liabilities) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Resale agreements
Gross Assets	$ 17,044	$ 9,028
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Net Amounts Presented in the Condensed Consolidated Balance Sheets	17,044	9,028
Counterparty Offsetting	0	0
Collateral	(17,044)	(9,028)
Net Amount	0	0
Securities borrowed
Gross Assets	78	735
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Net Amounts Presented in the Condensed Consolidated Balance Sheets	78	735
Counterparty Offsetting	(71)	(730)
Collateral	(6)	(5)
Net Amount	1	0
Total Gross Assets	17,122	9,763
Total Assets, Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Total Assets, Net Amounts Presented in the Condensed Consolidated Balance Sheets	17,122	9,763
Total Assets, Gross Amounts Not Offset in the Consolidated Balance Sheet, Counterparty Offsetting	(71)	(730)
Total Assets, Gross Amounts Not Offset in the Consolidated Balance Sheet, Collateral	(17,050)	(9,033)
Total Assets, Net Amount	1	0
Securities loaned
Gross Liabilities	1,335	1,251
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0	0
Net Amounts Presented in the Condensed Consolidated Balance Sheets	1,335	1,251
Counterparty Offsetting	(71)	(730)
Collateral	(1,106)	(445)
Net Amount	158	76
Total Gross Liabilities	1,335	1,251
Total Liabilities, Net Amounts Presented in the Consolidated Balance Sheet	1,335	1,251
Total Liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheet, Counterparty Offsetting	(71)	(730)
Total Liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheet, Collateral	(1,106)	(445)
Total Liabilities, Net Amount	158	76
Offsetting Assets [Line Items]
Fair value of client securities available to be pledged	22,896	26,685
Resale And Repurchase Agreements [Member]
Offsetting Assets [Line Items]
Fair value of client securities available to be pledged	$ 17,200	$ 9,200

Financial Instruments Subject_5

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Summary of the Fair Value of Client Securities Available to Utilize as Collateral and Amounts Pledged) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Securities Financing Transaction [Line Items]
Fair value of client securities available to be pledged	$ 22,896	$ 26,685
Total collateral pledged	8,001	5,481
Fulfillment of Requirements with the Options Clearing Corporation [Member]
Securities Financing Transaction [Line Items]
Total collateral pledged	4,622	2,171
Fulfillment of Client Short Sales [Member]
Securities Financing Transaction [Line Items]
Total collateral pledged	2,102	2,293
Securities Lending to Other Broker-Dealers [Member]
Securities Financing Transaction [Line Items]
Total collateral pledged	1,277	1,017
Fully Paid Client Securities [Member]
Securities Financing Transaction [Line Items]
Total collateral pledged	$ 104	$ 142

Fair Values of Assets and Lia_3

Fair Values of Assets and Liabilities (Fair Value Hierarchy for Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	$ 221,232	$ 61,422
Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	396	395
Certificates of deposit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	998	1,004
U.S. agency mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	179,595	46,155
Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	22,481	4,987
Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	11,222	5,484
U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	3,664	3,384
U.S. state and municipal securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	1,578
Non-agency commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	1,226	13
Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	51
Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	21
Fair Value, Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	9,209	7,677
Investments segregated and on deposit for regulatory purposes	14,598	8,627
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	221,232	61,422
Other assets	695	718
Total	245,734	78,444
Fair Value, Recurring [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	5,152	5,179
Fair Value, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	4,057	2,498
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	396	395
Fair Value, Recurring [Member] | Certificates of deposit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	1,949	1,351
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	998	1,004
Fair Value, Recurring [Member] | U.S. Government securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	12,649	7,276
Other assets	251	202
Fair Value, Recurring [Member] | U.S. agency mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	179,595	46,155
Fair Value, Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	22,481	4,987
Fair Value, Recurring [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	11,222	5,484
Fair Value, Recurring [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	3,664	3,384
Fair Value, Recurring [Member] | U.S. state and municipal securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	1,578
Fair Value, Recurring [Member] | Non-agency commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	1,226	13
Fair Value, Recurring [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	51
Fair Value, Recurring [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	21
Fair Value, Recurring [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	379	442
Fair Value, Recurring [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	41	47
Fair Value, Recurring [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	24	27
Fair Value, Recurring [Member] | Level 1 [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	5,152	5,179
Investments segregated and on deposit for regulatory purposes	0	0
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Other assets	382	447
Total	5,534	5,626
Fair Value, Recurring [Member] | Level 1 [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	5,152	5,179
Fair Value, Recurring [Member] | Level 1 [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | Certificates of deposit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	0	0
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | U.S. Government securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	0	0
Other assets	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | U.S. agency mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | U.S. state and municipal securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0
Fair Value, Recurring [Member] | Level 1 [Member] | Non-agency commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0
Fair Value, Recurring [Member] | Level 1 [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0
Fair Value, Recurring [Member] | Level 1 [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	379	442
Fair Value, Recurring [Member] | Level 1 [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Fair Value, Recurring [Member] | Level 1 [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	3	5
Fair Value, Recurring [Member] | Level 2 [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	4,057	2,498
Investments segregated and on deposit for regulatory purposes	14,598	8,627
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	221,232	61,422
Other assets	313	271
Total	240,200	72,818
Fair Value, Recurring [Member] | Level 2 [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Fair Value, Recurring [Member] | Level 2 [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	4,057	2,498
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	396	395
Fair Value, Recurring [Member] | Level 2 [Member] | Certificates of deposit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	1,949	1,351
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	998	1,004
Fair Value, Recurring [Member] | Level 2 [Member] | U.S. Government securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	12,649	7,276
Other assets	251	202
Fair Value, Recurring [Member] | Level 2 [Member] | U.S. agency mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	179,595	46,155
Fair Value, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	22,481	4,987
Fair Value, Recurring [Member] | Level 2 [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	11,222	5,484
Fair Value, Recurring [Member] | Level 2 [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	3,664	3,384
Fair Value, Recurring [Member] | Level 2 [Member] | U.S. state and municipal securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	1,578
Fair Value, Recurring [Member] | Level 2 [Member] | Non-agency commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	1,226	13
Fair Value, Recurring [Member] | Level 2 [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	51
Fair Value, Recurring [Member] | Level 2 [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	21
Fair Value, Recurring [Member] | Level 2 [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Fair Value, Recurring [Member] | Level 2 [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	41	47
Fair Value, Recurring [Member] | Level 2 [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	21	22
Fair Value, Recurring [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Investments segregated and on deposit for regulatory purposes	0	0
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Other assets	0	0
Total	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Certificates of deposit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	0	0
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | U.S. Government securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes	0	0
Other assets	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | U.S. agency mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | U.S. state and municipal securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0
Fair Value, Recurring [Member] | Level 3 [Member] | Non-agency commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0
Fair Value, Recurring [Member] | Level 3 [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities (amortized cost of $215,873 and $61,155 at March 31, 2020 and December 31, 2019, respectively)	0
Fair Value, Recurring [Member] | Level 3 [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	0	0
Fair Value, Recurring [Member] | Level 3 [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets	$ 0	$ 0

Fair Values of Assets and Lia_4

Fair Values of Assets and Liabilities (Fair Value of Other Financial Instruments) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Held to maturity securities		$ 136,099
U.S. agency mortgage-backed securities [Member]
Assets
Held to maturity securities		110,566
Asset-backed securities [Member]
Assets
Held to maturity securities		17,771
Corporate debt securities [Member]
Assets
Held to maturity securities		4,718
U.S. state and municipal securities [Member]
Assets
Held to maturity securities		1,404
Non-agency commercial mortgage-backed securities [Member]
Assets
Held to maturity securities		1,141
U.S. Treasury securities [Member]
Assets
Held to maturity securities		228
Certificates of deposit [Member]
Assets
Held to maturity securities		200
Foreign government agency securities [Member]
Assets
Held to maturity securities		50
Carrying Amount [Member]
Assets
Cash and cash equivalents	$ 59,249	21,668
Cash and investments segregated and on deposit for regulatory purposes	19,668	11,807
Receivables from brokerage clients — net	18,998	21,763
Held to maturity securities		134,706
Bank loans – net	19,521	18,212
Other assets	812	1,014
Liabilities
Bank deposits	277,477	220,094
Payables to brokerage clients	49,251	39,220
Accrued expenses and other liabilities	4,648	1,882
Long-term debt	8,522	7,430
Carrying Amount [Member] | First Mortgage [Member]
Assets
Bank loans – net	12,777	11,693
Carrying Amount [Member] | HELOCs [Member]
Assets
Bank loans – net	1,063	1,113
Carrying Amount [Member] | Pledged asset lines [Member]
Assets
Bank loans – net	5,467	5,206
Carrying Amount [Member] | Other [Member]
Assets
Bank loans – net	214	200
Carrying Amount [Member] | U.S. agency mortgage-backed securities [Member]
Assets
Held to maturity securities		109,325
Carrying Amount [Member] | Asset-backed securities [Member]
Assets
Held to maturity securities		17,806
Carrying Amount [Member] | Corporate debt securities [Member]
Assets
Held to maturity securities		4,661
Carrying Amount [Member] | U.S. state and municipal securities [Member]
Assets
Held to maturity securities		1,301
Carrying Amount [Member] | Non-agency commercial mortgage-backed securities [Member]
Assets
Held to maturity securities		1,119
Carrying Amount [Member] | U.S. Treasury securities [Member]
Assets
Held to maturity securities		223
Carrying Amount [Member] | Certificates of deposit [Member]
Assets
Held to maturity securities		200
Carrying Amount [Member] | Foreign government agency securities [Member]
Assets
Held to maturity securities		50
Carrying Amount [Member] | Other [Member]
Assets
Held to maturity securities		21
Portion at Other than Fair Value Measurement [Member]
Assets
Cash and cash equivalents	59,249	21,668
Cash and investments segregated and on deposit for regulatory purposes	19,668	11,807
Receivables from brokerage clients — net	18,998	21,763
Held to maturity securities		136,099
Bank loans – net	19,704	18,198
Other assets	812	1,014
Liabilities
Bank deposits	277,477	220,094
Payables to brokerage clients	49,251	39,220
Accrued expenses and other liabilities	4,648	1,882
Long-term debt	8,736	7,775
Portion at Other than Fair Value Measurement [Member] | First Mortgage [Member]
Assets
Bank loans – net	12,969	11,639
Portion at Other than Fair Value Measurement [Member] | HELOCs [Member]
Assets
Bank loans – net	1,054	1,153
Portion at Other than Fair Value Measurement [Member] | Pledged asset lines [Member]
Assets
Bank loans – net	5,467	5,206
Portion at Other than Fair Value Measurement [Member] | Other [Member]
Assets
Bank loans – net	214	200
Portion at Other than Fair Value Measurement [Member] | U.S. agency mortgage-backed securities [Member]
Assets
Held to maturity securities		110,566
Portion at Other than Fair Value Measurement [Member] | Asset-backed securities [Member]
Assets
Held to maturity securities		17,771
Portion at Other than Fair Value Measurement [Member] | Corporate debt securities [Member]
Assets
Held to maturity securities		4,718
Portion at Other than Fair Value Measurement [Member] | U.S. state and municipal securities [Member]
Assets
Held to maturity securities		1,404
Portion at Other than Fair Value Measurement [Member] | Non-agency commercial mortgage-backed securities [Member]
Assets
Held to maturity securities		1,141
Portion at Other than Fair Value Measurement [Member] | U.S. Treasury securities [Member]
Assets
Held to maturity securities		228
Portion at Other than Fair Value Measurement [Member] | Certificates of deposit [Member]
Assets
Held to maturity securities		200
Portion at Other than Fair Value Measurement [Member] | Foreign government agency securities [Member]
Assets
Held to maturity securities		50
Portion at Other than Fair Value Measurement [Member] | Other [Member]
Assets
Held to maturity securities		21
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member]
Assets
Cash and cash equivalents	59,249	21,668
Cash and investments segregated and on deposit for regulatory purposes	2,637	2,792
Receivables from brokerage clients — net	0	0
Held to maturity securities		0
Bank loans – net	0	0
Other assets	0	0
Liabilities
Bank deposits	0	0
Payables to brokerage clients	0	0
Accrued expenses and other liabilities	0	0
Long-term debt	0	0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | First Mortgage [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | HELOCs [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Pledged asset lines [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Other [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | U.S. agency mortgage-backed securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Asset-backed securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Corporate debt securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | U.S. state and municipal securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Non-agency commercial mortgage-backed securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | U.S. Treasury securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Certificates of deposit [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Foreign government agency securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 1 [Member] | Other [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member]
Assets
Cash and cash equivalents	0	0
Cash and investments segregated and on deposit for regulatory purposes	17,031	9,015
Receivables from brokerage clients — net	18,998	21,763
Held to maturity securities		136,099
Bank loans – net	19,704	18,198
Other assets	812	1,014
Liabilities
Bank deposits	277,477	220,094
Payables to brokerage clients	49,251	39,220
Accrued expenses and other liabilities	4,648	1,882
Long-term debt	8,736	7,775
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | First Mortgage [Member]
Assets
Bank loans – net	12,969	11,639
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | HELOCs [Member]
Assets
Bank loans – net	1,054	1,153
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Pledged asset lines [Member]
Assets
Bank loans – net	5,467	5,206
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Other [Member]
Assets
Bank loans – net	214	200
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | U.S. agency mortgage-backed securities [Member]
Assets
Held to maturity securities		110,566
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Asset-backed securities [Member]
Assets
Held to maturity securities		17,771
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Corporate debt securities [Member]
Assets
Held to maturity securities		4,718
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | U.S. state and municipal securities [Member]
Assets
Held to maturity securities		1,404
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Non-agency commercial mortgage-backed securities [Member]
Assets
Held to maturity securities		1,141
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | U.S. Treasury securities [Member]
Assets
Held to maturity securities		228
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Certificates of deposit [Member]
Assets
Held to maturity securities		200
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Foreign government agency securities [Member]
Assets
Held to maturity securities		50
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Other [Member]
Assets
Held to maturity securities		21
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member]
Assets
Cash and cash equivalents	0	0
Cash and investments segregated and on deposit for regulatory purposes	0	0
Receivables from brokerage clients — net	0	0
Held to maturity securities		0
Bank loans – net	0	0
Other assets	0	0
Liabilities
Bank deposits	0	0
Payables to brokerage clients	0	0
Accrued expenses and other liabilities	0	0
Long-term debt	0	0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | First Mortgage [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | HELOCs [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Pledged asset lines [Member]
Assets
Bank loans – net	0	0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Other [Member]
Assets
Bank loans – net	$ 0	0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | U.S. agency mortgage-backed securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Asset-backed securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Corporate debt securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | U.S. state and municipal securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Non-agency commercial mortgage-backed securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | U.S. Treasury securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Certificates of deposit [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Foreign government agency securities [Member]
Assets
Held to maturity securities		0
Portion at Other than Fair Value Measurement [Member] | Level 3 [Member] | Other [Member]
Assets
Held to maturity securities		$ 0

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details) - Common Stock [Member] - USD ($) shares in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 30, 2019
Class of Stock [Line Items]
Share repurchase, authorized amount			$ 4,000,000,000
Shares repurchased (in shares)	0	0

Stockholders' Equity (Preferred

Stockholders' Equity (Preferred Stock Issued and Outstanding) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Shares issued (in shares)	1,761,000	1,761,000
Shares outstanding (in shares)	1,761,000	1,761,000
Carrying Value	$ 2,793	$ 2,793
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)	600,000	600,000
Shares outstanding (in shares)	600,000	600,000
Liquidation preference per share (USD per share)	$ 1,000
Carrying Value	$ 585	$ 585
Dividend Rate in Effect	6.00%
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)	750,000	750,000
Shares outstanding (in shares)	750,000	750,000
Liquidation preference per share (USD per share)	$ 1,000
Carrying Value	$ 728	$ 728
Dividend Rate in Effect	5.95%
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)	400,000	400,000
Shares outstanding (in shares)	400,000	400,000
Liquidation preference per share (USD per share)	$ 1,000
Carrying Value	$ 397	$ 397
Dividend Rate in Effect	7.00%
Series A Preferred Stock [Member] | LIBOR [Member]
Class of Stock [Line Items]
Floating Annual Rate	4.82%
Series E Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)	6,000	6,000
Shares outstanding (in shares)	6,000	6,000
Liquidation preference per share (USD per share)	$ 100,000
Carrying Value	$ 591	$ 591
Dividend Rate in Effect	4.625%
Series E Preferred Stock [Member] | LIBOR [Member]
Class of Stock [Line Items]
Floating Annual Rate	3.315%
Series F Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)	5,000	5,000
Shares outstanding (in shares)	5,000	5,000
Liquidation preference per share (USD per share)	$ 100,000
Carrying Value	$ 492	$ 492
Dividend Rate in Effect	5.00%
Series F Preferred Stock [Member] | LIBOR [Member]
Class of Stock [Line Items]
Floating Annual Rate	2.575%

Stockholders' Equity (Dividends

Stockholders' Equity (Dividends Declared) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Class of Stock [Line Items]
Dividends declared	$ 34.1	$ 34.1
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared	$ 0	$ 0
Dividends declared, per share amount (USD per share)	$ 0	$ 0
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared	$ 9	$ 9
Dividends declared, per share amount (USD per share)	$ 15	$ 15
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared	$ 11.2	$ 11.2
Dividends declared, per share amount (USD per share)	$ 14.88	$ 14.88
Series E Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared	$ 13.9	$ 13.9
Dividends declared, per share amount (USD per share)	$ 2,312.50	$ 2,312.50
Series F Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared	$ 0	$ 0
Dividends declared, per share amount (USD per share)	$ 0	$ 0

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Components of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other comprehensive income (loss) before tax
Net unrealized gain (loss)	$ 5,151	$ 227
Other reclassifications included in other revenue	0	(1)
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale	0	12
Other comprehensive income (loss), before tax	5,151	238
Tax Effect
Net unrealized gain (loss)	(1,244)	(54)
Other reclassifications included in other revenue	0	0
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale	0	(3)
Other comprehensive income (loss)	(1,244)	(57)
Net of Tax
Net unrealized gain (loss)	3,907	173
Other reclassifications included in other revenue	0	(1)
Amortization of amounts previously recorded upon transfer from available for sale	0	9
Other comprehensive income (loss), net of tax	$ 3,907	$ 181

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Accumulated Other Comprehensive Income Balances) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income
Beginning Balance	$ 88	$ (252)
Other net changes	3,907	181
Ending Balance	3,995	(71)
Net unrealized gain (loss) on available for sale securities [Member]
Accumulated Other Comprehensive Income
Other net changes	2,850	154
Net unrealized gain on securities transferred to available for sale from held to maturity [Member]
Accumulated Other Comprehensive Income
Other net changes	$ 1,057	19
Other reclassifications included in other revenue [Member]
Accumulated Other Comprehensive Income
Other net changes		(1)
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale [Member]
Accumulated Other Comprehensive Income
Other net changes		$ 9

Regulatory Requirements (Regula

Regulatory Requirements (Regulatory Capital and Ratios) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
CSC [Member]
Common Equity Tier 1 Risk-Based Capital
Actual Amount	$ 18,197	$ 17,660
Actual Ratio	18.40%	19.50%
Minimum Capital Requirement Amount	$ 4,457	$ 4,073
Minimum Capital Requirement Ratio	4.50%	4.50%
Tier 1 Risk-Based Capital
Actual Amount	$ 20,990	$ 20,453
Actual Ratio	21.20%	22.60%
Minimum Capital Requirement Amount	$ 5,942	$ 5,431
Minimum Capital Requirement Ratio	6.00%	6.00%
Total Risk-Based Capital
Actual Amount	$ 21,023	$ 20,472
Actual Ratio	21.20%	22.60%
Minimum Capital Requirement Amount	$ 7,923	$ 7,241
Minimum Capital Requirement Ratio	8.00%	8.00%
Tier 1 Leverage
Actual Amount	$ 20,990	$ 20,453
Actual Ratio	6.90%	7.30%
Minimum Capital Requirement Amount	$ 12,137	$ 11,189
Minimum Capital Requirement Ratio	4.00%	4.00%
Supplemental Leverage Ratio
Actual Amount	$ 20,990	$ 20,453
Actual Ratio	6.80%	7.10%
Minimum Capital Requirement Amount	$ 9,309	$ 8,604
Minimum Capital Requirement Ratio	3.00%	3.00%
CSB [Member]
Common Equity Tier 1 Risk-Based Capital
Actual Amount	$ 15,413	$ 14,819
Actual Ratio	19.70%	20.70%
Minimum to be Well Capitalized Amount	$ 5,075	$ 4,649
Minimum to be Well Capitalized Ratio	6.50%	6.50%
Minimum Capital Requirement Amount	$ 3,514	$ 3,218
Minimum Capital Requirement Ratio	4.50%	4.50%
Tier 1 Risk-Based Capital
Actual Amount	$ 15,413	$ 14,819
Actual Ratio	19.70%	20.70%
Minimum to be Well Capitalized Amount	$ 6,247	$ 5,722
Minimum to be Well Capitalized Ratio	8.00%	8.00%
Minimum Capital Requirement Amount	$ 4,685	$ 4,291
Minimum Capital Requirement Ratio	6.00%	6.00%
Total Risk-Based Capital
Actual Amount	$ 15,445	$ 14,837
Actual Ratio	19.80%	20.70%
Minimum to be Well Capitalized Amount	$ 7,808	$ 7,152
Minimum to be Well Capitalized Ratio	10.00%	10.00%
Minimum Capital Requirement Amount	$ 6,247	$ 5,722
Minimum Capital Requirement Ratio	8.00%	8.00%
Tier 1 Leverage
Actual Amount	$ 15,413	$ 14,819
Actual Ratio	6.90%	7.10%
Minimum to be Well Capitalized Amount	$ 11,114	$ 10,486
Minimum to be Well Capitalized Ratio	5.00%	5.00%
Minimum Capital Requirement Amount	$ 8,891	$ 8,389
Minimum Capital Requirement Ratio	4.00%	4.00%
Supplemental Leverage Ratio
Actual Amount	$ 15,413	$ 14,819
Actual Ratio	6.70%	6.80%
Minimum Capital Requirement Amount	$ 6,867	$ 6,497
Minimum Capital Requirement Ratio	3.00%	3.00%

Regulatory Requirements (Narrat

Regulatory Requirements (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets	$ 370,779	$ 294,005
Charles Schwab Premier Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets	22,400
Trust Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets	$ 10,700

Regulatory Requirements (Net Ca

Regulatory Requirements (Net Capital and Net Capital Requirements) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Banking and Thrift [Abstract]
Net Capital	$ 3,472,000	$ 3,700,000
Minimum net capital required	250	250
2% of aggregate debit balances	419,000	446,000
Net Capital in excess of required net capital	$ 3,053,000	$ 3,254,000

Segment Information (Narrative)

Segment Information (Narrative) (Details)	3 Months Ended
	Mar. 31, 2020segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segment Information (Financial

Segment Information (Financial Information for Reportable Segments) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Net Revenues
Net interest revenue		$ 1,572	$ 1,681
Other (1)	[1]	30	70
Total net revenues		2,617	2,723
Expenses Excluding Interest		1,570	1,459
Income before taxes on income		1,047	1,264
Asset management and administration fees [Member]
Net Revenues
Asset management and administration fees and Trading revenue		827	755
Trading revenue [Member]
Net Revenues
Asset management and administration fees and Trading revenue	[1]	188	217
Investor Services [Member]
Net Revenues
Net interest revenue		1,128	1,195
Other (1)		20	42
Total net revenues		1,867	1,911
Expenses Excluding Interest		1,154	1,062
Income before taxes on income		713	849
Investor Services [Member] | Asset management and administration fees [Member]
Net Revenues
Asset management and administration fees and Trading revenue		600	533
Investor Services [Member] | Trading revenue [Member]
Net Revenues
Asset management and administration fees and Trading revenue		119	141
Advisor Services [Member]
Net Revenues
Net interest revenue		444	486
Other (1)		10	28
Total net revenues		750	812
Expenses Excluding Interest		416	397
Income before taxes on income		334	415
Advisor Services [Member] | Asset management and administration fees [Member]
Net Revenues
Asset management and administration fees and Trading revenue		227	222
Advisor Services [Member] | Trading revenue [Member]
Net Revenues
Asset management and administration fees and Trading revenue		$ 69	$ 76
[1]	In the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Apr. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Preferred stock, par value (USD per share)		$ 0.01	$ 0.01
Subsequent Event [Member]
Subsequent Event [Line Items]
Liquidation preference per share (USD per share)	$ 1,000
Proceeds from offering	$ 2,470
Depositary Shares [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Number of shares issued (in shares)	2,500,000
Ownership interest	1.00%
Series G Preferred Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Fixed rate	5.375%
Preferred stock, par value (USD per share)	$ 0.01
Liquidation preference per share (USD per share)	$ 100,000