The Charles Schwab Corporation (SCHW) 10-K 24 Feb 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Jan. 29, 2021	Jun. 30, 2020
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 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	3000 Schwab Way
Entity Address, City or Town	Westlake
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76262
City Area Code	817
Local Phone Number	859-5000
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 39.3
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Part III of this Form 10-K incorporates certain information contained in the registrant’s definitive proxy statement for its annual meeting of stockholders, to be held May 13, 2021, by reference to that document.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0000316709
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
Entity Common Stock, Shares Outstanding		1,803,049,958
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
Nonvoting Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		79,293,695

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Revenues
Interest revenue	[1]	$ 6,531	$ 7,580	$ 6,680
Interest expense	[1]	(418)	(1,064)	(857)
Net interest revenue	[1]	6,113	6,516	5,823
Other	[1]	332	242	178
Total net revenues	[1]	11,691	10,721	10,132
Expenses Excluding Interest
Compensation and benefits	[1]	3,954	3,320	3,057
Professional services	[1]	843	702	654
Occupancy and equipment	[1]	703	559	496
Advertising and market development	[1]	326	307	313
Communications	[1]	353	253	242
Depreciation and amortization	[2]	414	322	277
Amortization of acquired intangible assets	[1]	190	27	29
Regulatory fees and assessments	[1]	163	122	189
Other	[1]	445	261	313
Total expenses excluding interest	[1]	7,391	5,873	5,570
Income before taxes on income	[1]	4,300	4,848	4,562
Taxes on income	[1]	1,001	1,144	1,055
Net Income	[1]	3,299	3,704	3,507
Preferred stock dividends and other	[1],[3]	256	178	178
Net Income Available to Common Stockholders	[1]	$ 3,043	$ 3,526	$ 3,329
Weighted-Average Common Shares Outstanding:
Basic (in shares)	[1]	1,429	1,311	1,348
Diluted (in shares)	[1]	1,435	1,320	1,361
Earnings Per Share, Basic and Diluted [Abstract]
Basic (USD per share)	[1],[4]	$ 2.13	$ 2.69	$ 2.47
Diluted (USD per share)	[1],[4]	$ 2.12	$ 2.67	$ 2.45
Asset Management and administration fees [Member]
Net Revenues
Revenues from contracts with customers	[1],[5]	$ 3,475	$ 3,211	$ 3,229
Trading revenue [Member]
Net Revenues
Revenues from contracts with customers	[1]	1,416	752	902
Bank Deposit Account Fees [Member]
Net Revenues
Revenues from contracts with customers	[1]	355	$ 0	$ 0
Fee Waivers [Member]
Net Revenues
Revenues from contracts with customers		$ 127
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[3]	Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units.
[4]	For the year ended December 31, 2020, the Company had voting and nonvoting common stock outstanding. As the participation rights, including dividend and liquidation rights, are identical between the voting and nonvoting stock classes, basic and diluted earnings per share are the same for each class. See Notes 19 and 25 for additional information.
[5]	Includes fee waivers of $127 million for the year ended December 31, 2020.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	[1]	$ 3,299	$ 3,704	$ 3,507
Change in net unrealized gain (loss) on available for sale securities:
Net unrealized gain (loss)		6,961	430	(123)
Other reclassifications included in other revenue		(4)	(6)	0
Change in net unrealized gain (loss) on held to maturity securities:
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale		0	36	35
Other		8	(14)	(1)
Other comprehensive income (loss), before tax		6,965	446	(89)
Income tax effect		(1,659)	(106)	22
Other comprehensive income (loss), net of tax		5,306	340	(67)
Comprehensive Income		$ 8,605	$ 4,044	$ 3,440
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	[1],[2]	$ 40,348	$ 29,345
Cash and investments segregated and on deposit for regulatory purposes (including resale agreements of $14,904 and $9,028 at December 31, 2020 and 2019, respectively)	[1]	50,399	20,483
Receivables from brokerage clients — net	[1]	64,440	21,767
Available for sale securities	[1]	337,400	61,422
Held to maturity securities	[1]	0	134,706
Bank loans — net	[1]	23,813	18,212
Equipment, office facilities, and property — net	[1]	2,883	2,128
Goodwill	[1]	11,952	1,227
Acquired intangible assets — net	[1]	9,991	128
Other assets	[1]	7,783	4,587
Total assets	[1]	549,009	294,005
Liabilities and Stockholders’ Equity
Bank deposits	[1]	358,022	220,094
Payables to brokerage clients	[1]	104,201	39,220
Accrued expenses and other liabilities	[1]	17,094	5,516
Long-term debt	[1]	13,632	7,430
Total liabilities	[1]	492,949	272,260
Stockholders’ equity:
Preferred stock — $.01 par value per share; aggregate liquidation preference of $7,850 and $2,850 at December 31, 2020 and 2019, respectively	[1]	7,733	2,793
Common stock	[1]	20	15
Additional paid-in capital	[1]	26,515	4,656
Retained earnings	[1]	21,975	19,960
Treasury stock, at cost — 193,577,648 and 201,818,100 shares at December 31, 2020 and 2019, respectively	[1]	(5,578)	(5,767)
Accumulated other comprehensive income (loss)	[1]	5,394	88
Total stockholders’ equity	[1]	56,060	21,745
Total liabilities and stockholders’ equity	[1]	549,009	294,005
Nonvoting Common Stock [Member]
Stockholders’ equity:
Common stock	[1]	1	0
Total stockholders’ equity		$ 1	$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 23.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Cash and investments segregated and on deposit for regulatory purposes, resale agreements	$ 14,904	$ 9,028
Amortized cost	$ 330,248	$ 61,155
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, aggregate liquidation preference	$ 7,850	$ 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)	1,994,895,180	1,487,543,446
Treasury stock (shares)	193,577,648	201,818,100
Nonvoting Common Stock [Member]
Common stock, shares authorized (shares)	300,000,000	300,000,000
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares issued (shares)	79,293,695	79,293,695

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total		Adoption of accounting standards [Member]	Nonvoting Common Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member]Adoption of accounting standards [Member]	Treasury Stock, at cost [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Adoption of accounting standards [Member]
Beginning Balance at Dec. 31, 2017	$ 18,525		$ 167	$ 0	$ 2,793	$ 15	$ 4,353	$ 14,408	$ 200	$ (2,892)	$ (152)	$ (33)
Beginning Balance (in shares) at Dec. 31, 2017				0		1,488
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,507	[1]						3,507
Other comprehensive income (loss), net of tax	(67)										(67)
Dividends declared on preferred stock	(164)							(164)
Dividends declared on common stock	(624)							(624)
Repurchase of common stock	(1,000)									(1,000)
Stock option exercises and other	125						(84)			209
Share-based compensation	188						188
Other	13						42	2		(31)
Ending Balance (in shares) at Dec. 31, 2018				0		1,488
Ending Balance at Dec. 31, 2018	20,670			$ 0	2,793	$ 15	4,499	17,329		(3,714)	(252)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,704	[1]						3,704
Other comprehensive income (loss), net of tax	340										340
Dividends declared on preferred stock	(161)							(161)
Dividends declared on common stock	(899)							(899)
Repurchase of common stock	(2,220)									(2,220)
Stock option exercises and other	118						(56)			174
Share-based compensation	171						171
Other	22						42	(13)		(7)
Ending Balance (in shares) at Dec. 31, 2019				0		1,488
Ending Balance at Dec. 31, 2019	21,745	[2]		$ 0	2,793	$ 15	4,656	19,960		(5,767)	88
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,299	[1]		$ 44				3,299
Other comprehensive income (loss), net of tax	5,306										5,306
Acquisition of TD Ameritrade (in shares)				77		509
Acquisition of TD Ameritrade	21,758			$ 1		$ 5	21,757			(5)
Issuance of preferred stock, net	4,940				4,940
Dividends declared on preferred stock	(240)							(240)
Dividends declared on common stock	(1,040)							(1,040)
Stock option exercises and other	79						(121)			200
Share-based compensation	192						192
Other	21			$ 2		$ (2)	31	(4)		(6)
Ending Balance (in shares) at Dec. 31, 2020				79		1,995
Ending Balance at Dec. 31, 2020	$ 56,060	[2]		$ 1	$ 7,733	$ 20	$ 26,515	$ 21,975		$ (5,578)	$ 5,394
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Dividends Declared Per Common Share (USD per share)	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.72	$ 0.68	$ 0.46

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Cash Flows from Operating Activities
Net income	[1]	$ 3,299		$ 3,704		$ 3,507
Adjustments to reconcile net income to net cash (used for) provided by operating activities:
Share-based compensation	[2]	204		183		197
Depreciation and amortization	[2]	414		322		277
Amortization of acquired intangible assets	[1]	190		27		29
Provision (benefit) for deferred income taxes	[2]	(138)		2		49
Premium amortization, net, on available for sale and held to maturity securities	[2]	1,586		446		350
Other	[2]	349		199		137
Net change in:
Investments segregated and on deposit for regulatory purposes	[2]	(10,208)		(977)		6,922
Receivables from brokerage clients	[2]	(14,609)		(125)		(1,100)
Other assets	[2]	4		(709)		(8)
Payables to brokerage clients	[2]	22,909		6,494		1,483
Accrued expenses and other liabilities	[2]	2,852		(241)		613
Net cash provided by (used for) operating activities	[2]	6,852		9,325		12,456
Cash Flows from Investing Activities
Purchases of available for sale securities	[2]	(202,171)		(31,815)		(32,801)
Proceeds from sales of available for sale securities	[2]	4,801		24,495		115
Principal payments on available for sale securities	[2]	63,247		21,616		16,016
Purchases of held to maturity securities	[2]	0		(19,441)		(40,873)
Principal payments on held to maturity securities	[2]	0		19,606		17,410
Net change in bank loans	[2]	(5,675)		(1,730)		(129)
Cash acquired in acquisitions, net of cash paid	[2]	14,748		0		0
Purchases of equipment, office facilities, and property	[2]	(631)		(708)		(570)
Purchases of Federal Home Loan Bank stock	[2]	(26)		(27)		(156)
Proceeds from sales of Federal Home Loan Bank stock	[2]	32		24		529
Purchases of Federal Reserve stock	[2]	(191)		0		0
Other investing activities	[2]	15		(56)		(96)
Net cash provided by (used for) investing activities	[2]	(125,851)		11,964		(40,555)
Cash Flows from Financing Activities
Net change in bank deposits	[2]	137,928		(11,329)		61,767
Net change in short-term borrowings	[2]	0		0		(15,000)
Issuance of long-term debt	[2]	3,070		593		3,024
Repayment of long-term debt	[2]	(700)		0		(909)
Repurchases of common stock	[2]	0		(2,220)		(1,000)
Net proceeds from preferred stock offerings	[2]	4,940		0		0
Dividends paid	[2]	(1,280)		(1,060)		(787)
Proceeds from stock options exercised	[2]	79		118		125
Other financing activities	[2]	(55)		(41)		(54)
Net cash provided by (used for) financing activities	[2]	143,982		(13,939)		47,166
Increase (Decrease) in Cash and Cash Equivalents, including Amounts Restricted	[2]	24,983		7,350		19,067
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Year	[2]	45,577	[3]	38,227	[3]	19,160
Cash and Cash Equivalents, including Amounts Restricted at End of Year	[2],[3]	70,560		45,577		38,227
Non-cash investing activity:
Securities transferred from held to maturity to available for sale, at fair value		136,099		8,771		0
Additions of equipment, office facilities, and property		110		45		6
Acquisition of TD Ameritrade		21,758		0		0
Non-cash financing activity:
Extinguishment of finance lease obligation through an assignment agreement		0		52		0
Cash paid during the period for:
Interest		434		1,075		798
Income taxes		803		1,199		$ 927
Amounts included in the measurement of lease liabilities		163		133
Leased assets obtained in exchange for new operating lease liabilities		$ 160		$ 97
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[3]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 23.

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Reconciliation of cash, cash equivalents and amounts reported within the balance sheet
Cash and cash equivalents	[2]	$ 40,348	[1]	$ 29,345	[1]	$ 27,938
Restricted cash and cash equivalents amounts included in cash and investments segregated and on deposit for regulatory purposes	[2]	30,212		16,232		10,289
Total cash and cash equivalents, including amounts restricted shown in the statement of cash flows	[2],[3]	$ 70,560		$ 45,577		$ 38,227
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 23.
[3]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Introduction and Basis of Prese

Introduction and Basis of Presentation	12 Months Ended
	Dec. 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. Incorporated in 1986, CSC 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), incorporated in 1971, a securities broker-dealer; • TD Ameritrade, Inc., an introducing securities broker-dealer; • TD Ameritrade Clearing, Inc. (TDAC), a securities broker-dealer that provides trade execution and clearing services to TD Ameritrade, Inc.; • 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 ™ ). Schwab’s securities broker-dealers have over 400 domestic branch offices in 48 states and the District of Columbia, as well as locations in Puerto Rico, the United Kingdom, Hong Kong, and Singapore. Unless otherwise indicated, the terms “Schwab,” “the Company,” “we,” “us,” or “our” mean CSC together with its consolidated subsidiaries. The accompanying consolidated financial statements include CSC and its subsidiaries. Intercompany balances and transactions have been eliminated. These consolidated financial statements have been prepared in conformity with 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 consolidated financial statements. While management makes its best judgment, actual amounts or results could differ from those estimates. Certain estimates relate to taxes on income, legal and regulatory reserves, and fair values of assets acquired and liabilities assumed, as well as goodwill recognized, in business combinations. Effective October 6, 2020, the Company completed its acquisition of TD Ameritrade Holding Corporation and its consolidated subsidiaries (collectively referred to as “TD Ameritrade” or “TDA”). TD Ameritrade provides securities brokerage services, including trade execution, clearing services, and margin lending, through its broker-dealer subsidiaries; and futures and foreign exchange trade execution services through its futures commission merchant (FCM) and forex dealer member (FDM) subsidiary. Our consolidated financial statements include the results of operations and financial condition of TD Ameritrade beginning on October 6, 2020. See Note 3 for additional information on our acquisition of TD Ameritrade. Reclassifications: Certain prior year amounts have been reclassified to conform to the current year presentation. Beginning in 2020, order flow revenue was reclassified from other revenue to trading revenue in the consolidated statements of income. Beginning in 2020, amortization of acquired intangible assets was reclassified from depreciation and amortization and presented separately in the consolidated statements of income. Beginning in 2020, acquired intangible assets – net was reclassified from other assets and presented separately in the consolidated balance sheets. Prior period amounts have been reclassified to reflect these changes. Corresponding presentation changes have been made to the consolidated statements of cash flows and related notes. Principles of Consolidation Schwab evaluates all entities in which it has financial interests for consolidation, except for money market funds, which are specifically excluded from consolidation guidance. When an entity is evaluated for consolidation, Schwab determines whether its interest in the entity constitutes a controlling financial interest under either the variable interest entity (VIE) model or the voting interest entity (VOE) model. In evaluating whether Schwab’s interest in a VIE is a controlling financial interest, we consider whether our involvement in the context of the design, purpose, and risks of the VIE, as well as any involvement of related parties, provides us with (i) the power to direct the most significant activities of the VIE, and (ii) the obligation to absorb losses or receive benefits that are significant to the VIE. If both of these conditions exist, then Schwab would be the primary beneficiary of that VIE and consolidate it. Based upon the assessments for all of our interests in VIEs, there are no cases where the Company is the primary beneficiary; therefore, we are not required to consolidate any VIEs. See Note 11 for further information about VIEs. Schwab consolidates all VOEs in which it has majority-voting interests. Investments in entities in which Schwab does not have a controlling financial interest are accounted for under the equity method of accounting when we have the ability to exercise significant influence over operating and financing decisions of the entity. Investments in entities for which Schwab does not have the ability to exercise significant influence are generally carried at cost and adjusted for impairment and observable price changes of the identical or similar investments of the same issuer (adjusted cost method), except for certain investments in qualified affordable housing projects which are accounted for under the proportional amortization method. All equity method, adjusted cost method, and proportional amortization method investments are included in other assets on the consolidated balance sheets.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Revenue recognition Net interest revenue Net interest revenue is not within the scope of Accounting Standards Codification (ASC) 606, Revenue From Contracts With Customers (ASC 606), because it is generated from financial instruments covered by various other areas of GAAP. Net interest revenue is the difference between interest generated on interest earning assets and interest paid on funding sources. Our primary interest earning assets include cash and cash equivalents; segregated cash and investments; margin loans; investment securities; and bank loans. Fees earned and incurred on securities borrowing and lending activities, which are conducted by the Company’s broker-dealer subsidiaries on assets held in client brokerage accounts, are also included in interest revenue and expense. Asset management and administration fees The majority of asset management and administration fees are generated through our proprietary and third-party mutual fund and ETF offerings, as well as fee-based advisory solutions. Mutual fund and ETF service fees are charged for investment management, shareholder, and administration services provided to Schwab Funds ® and Schwab ETFs ™ , as well as recordkeeping, shareholder, and administration services provided to third-party funds. Advice solutions fees are charged for brokerage and asset management services provided to advice solutions clients. Both mutual fund and ETF service fees and advice solutions fees are earned and recognized over time. Fees are generally based on a percentage of the daily value of assets under management and are collected on a monthly or quarterly basis. Trading revenue Trading revenue is primarily generated through commissions earned for executing trades for clients in individual equities, options, fixed income securities, and certain third-party mutual funds and ETFs, as well as order flow revenue. In late 2019, Schwab eliminated online trading commissions for U.S. and Canadian-listed stocks and ETFs, as well as the base charge on options. Commissions revenue is earned when the trades are executed and collected when the trades are settled. Order flow revenue is comprised of rebate payments received from execution venues to which our broker-dealer subsidiaries send equity and option orders. Order flow revenue is recognized when the trades are executed and is collected on a monthly or quarterly basis. Bank deposit account fees Bank deposit account fees consist of revenues resulting from sweep programs offered to certain clients whereby uninvested client cash is swept off-balance sheet to FDIC-insured (up to specified limits) accounts at the TD Depository Institutions and other third-party depository institutions. The Company provides marketing, recordkeeping, and support services related to these sweep programs to the TD Depository Institutions and other third-party depository institutions in exchange for bank deposit account fees. These revenues are based on floating and fixed yields as elected by the Company subject to certain requirements, less interest paid to clients and other applicable fees. Bank deposit account fees are earned and recognized over time and collected on a monthly basis. Other revenue Other revenue includes exchange processing fees, certain service fees, software fees, and non-recurring gains. Generally, the most significant portion of other revenue is exchange processing fees, which are comprised of fees the Company’s broker-dealer subsidiaries charge clients to offset the exchange processing fees imposed on us by third-parties. Exchange processing fees are earned and collected when the trade is executed and are recognized gross of amounts remitted to the third-parties, which are included in other expenses. Unsatisfied performance obligations We do not have any unsatisfied performance obligations other than those that are subject to an elective practical expedient under ASC 606. The practical expedient applies to and is elected for contracts where we recognize revenue at the amount to which we have the right to invoice for services performed. Cash and cash equivalents Schwab considers all highly liquid investments that mature in three months or less from the time of acquisition and that are not segregated and on deposit for regulatory purposes to be cash and cash equivalents. Cash and cash equivalents include money market funds, deposits with banks, certificates of deposit, commercial paper, and U.S. Treasury securities. Cash and cash equivalents also include balances that our banking subsidiaries maintain at the Federal Reserve. 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. Under these resale agreements, the Company obtains collateral with a market value equal to or in excess of the principal amount loaned and the interest accrued. 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 and unrealized gains and losses are included in earnings. Schwab applies the practical expedient based on collateral maintenance provisions under 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 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. Other securities owned at fair value Other securities owned are included in other assets on the consolidated balance sheets and recorded at fair value based on quoted market prices or other observable market data. Unrealized gains and losses are included in earnings. 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 using the specific-identification method and are included in other revenue. Interest income is recognized using the effective interest method based on the contractual terms of the security. Where applicable, prepayments are accounted for as they occur (i.e., prepayments are not estimated). An AFS investment security is impaired if the fair value of the security is less than its amortized cost basis. Management evaluates AFS 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 investment security (or a portion of the impairment) is related to credit losses, an allowance for credit losses is 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 are 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 the 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 investment securities for the purposes of identifying and measuring impairment of the securities. AFS 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 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 consolidated balance sheets. The market value of securities borrowed and loaned is monitored and collateral is adjusted 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 loan losses Bank loans held for investments are recorded at amortized cost, which is comprised of the contractual principal amounts adjusted for 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 three portfolio segments: residential real estate, PALs, and other loans. We use these segments when developing and documenting our methodology for determining the allowance for credit losses. The residential real estate portfolio segment is divided into two classes of financing receivables for purposes of monitoring and assessing credit risk: First Mortgages and HELOCs. 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 the residential real estate portfolio segment utilizes statistical models that estimate prepayments, defaults, and expected losses for this portfolio segment based on predicted behavior of individual loans within the segment. The methodology also evaluates concentrations in the classes of financing receivables, including loan products within those classes, 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 the 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 forecasted conditions. Loss severity (i.e., loss given default) estimates are based on our historical loss experience and market trends, both current and forecasted. The loss severity estimate used in the allowance for credit loss methodology for HELOCs 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 15 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 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, nonperforming and impaired loans First Mortgages, HELOCs, PALs, and other 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 and unpaid interest receivable is reversed 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. Equipment, office facilities, and property Equipment, office facilities, and property are recorded at cost net of accumulated depreciation and amortization, except for land, which is recorded at cost. Equipment, office facilities, and property include certain capitalized costs of acquired or internally developed software. Costs for internally developed software are capitalized when the costs relate to development of approved projects for our internal needs that result in additional functionality. Costs related to preliminary project and post-project activities are expensed as incurred. Equipment, office facilities, and property (other than land) are depreciated on a straight-line basis over their estimated useful lives. Estimated useful lives are as follows: All equipment types and furniture 3 to 10 years Buildings 40 years Building and land improvements 20 years Software 3 to 10 years (1) Leasehold improvements Lesser of useful life or lease term (1) Amortized over contractual term if less than three years. Equipment, office facilities, and property are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Goodwill Goodwill is not amortized but is tested for impairment annually or whenever indications of impairment exist. Impairment exists when the carrying amount of a reporting unit exceeds its estimated fair value, resulting in an impairment charge for this excess, with the maximum charge limited to the carrying value of goodwill allocated to that reporting unit. Our annual impairment testing date is April 1 st . Schwab can elect to qualitatively assess goodwill for impairment if it is more likely than not that the fair value of a reporting unit exceeds its carrying value. A qualitative assessment considers macroeconomic and other industry-specific factors, such as trends in short-term and long-term interest rates and the ability to access capital, and Company specific factors such as market capitalization in excess of net assets, trends in revenue generating activities, and merger or acquisition activity. If the Company elects to bypass qualitatively assessing goodwill, or it is not more likely than not that the fair value of a reporting unit exceeds its carrying value, management estimates the fair values of each of the Company’s reporting units (defined as the Company’s businesses for which financial information is available and reviewed regularly by management) and compares it to their carrying values. The estimated fair values of the reporting units are established using an income approach based on a discounted cash flow model that includes significant assumptions about the future operating results and cash flows of each reporting unit, a market approach which compares each reporting unit to comparable companies in their respective industries, as well as a market capitalization analysis. Intangible assets Finite-lived intangible assets are amortized over their useful lives in a manner that best reflects their economic benefit. All intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Low-income housing tax credit (LIHTC) investments We account for investments in qualified affordable housing projects using the proportional amortization method if the applicable requirements are met. The proportional amortization method amortizes the cost of the investment over the period in which the investor expects to receive tax credits and other tax benefits, and the resulting amortization is recognized as a component of taxes on income. The carrying value of LIHTC investments is included in other assets on the consolidated balance sheets. Unfunded commitments related to LIHTC investments are included in accrued expenses and other liabilities on the consolidated balance sheets. Leases The Company has operating leases for corporate offices, branch locations, and server equipment and determines if an arrangement is a lease at inception. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. The Company has also elected to not record leases acquired in a business combination on the balance sheet if the remaining term as of the acquisition date is 12 months or less. Right-of-use (ROU) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The lease liability may include payments that depend on a rate or index (such as the Consumer Price Index), measured using the rate or index at the commencement date. Payments that vary because of changes in facts or circumstances occurring after the commencement date are considered variable. These payments are not recognized as part of the lease liability and are expensed in the period incurred. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. We have lease agreements with lease and non-lease components. For the majority of our leases (real estate leases), the Company has elected the practical expedient to account for the lease and non-lease components as a single lease component. We have not elected the practical expedient for equipment leases and account for lease and non-lease components separately for those classes of leases. As the rates implicit in our leases are not readily determinable, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Our lease terms may include periods covered by options to extend when it is reasonably certain that we will exercise those options. The lease terms may also include periods covered by options to terminate when it is reasonably certain that we will not exercise that option. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term. Advertising and market development Advertising and market development activities include the cost to produce and distribute marketing campaigns as well as client incentives and discounts. Such costs are generally expensed when incurred. Income taxes Schwab provides for income taxes on all transactions that have been recognized in the consolidated financial statements. Accordingly, deferred tax assets are adjusted to reflect the tax rates at which future taxable amounts will likely be settled or realized. The effects of tax rate changes on future deferred tax assets and deferred tax liabilities, as well as other changes in income tax laws, are recorded in earnings in the period such changes are enacted. Uncertain tax positions are evaluated to determine whether they are more likely than not to be sustained upon examination. When tax positions are more likely than not to be sustained upon examination the difference between positions taken on tax return filings and estimated potential tax settlement outcomes are recognized in accrued expenses and other liabilities. If a position is not more likely than not to be sustained, then none of the tax benefit is recognized in Schwab’s financial statements. Accrued interest and penalties relating to unrecognized tax benefits are recorded in taxes on income. Schwab records amounts within AOCI net of taxes. Income tax effects are released from AOCI using the specific-identification method. Share-based compensation Share-based compensation includes employee and board of director stock options and restricted stock units. Schwab measures compensation expense for these share-based payment arrangements based on their estimated fair values as of the grant date. The fair value of the share-based award is recognized over the service period as share-based compensation. Share-based compensation expense is based on options or units expected to vest and therefore is reduced for estimated forfeitures. Per the Company’s accounting policy election, forfeitures are estimated at the time of grant and reviewed annually based on the Company’s historical forfeiture experience. Share-based compensation expense is adjusted in subsequent periods if actual forfeitures differ from estimated forfeitures. The excess tax benefits or deficiencies from the exercise of stock options and the vesting of restricted stock units are recorded in taxes on income. Fair values of assets and liabilities Fair value is defined as the price that would be received to sell an asset or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurement accounting guidance describes the fair value hierarchy for disclosing assets and liabilities measured at fair value based on the inputs used to value them. The fair value hierarchy maximizes the use of observable inputs and minimizes the use of unobservable inputs. Observable inputs are based on market pricing data obtained from third-party sources independent of the Company. A quoted price in an active market provides the most reliable evidence of fair value and is generally used to measure fair value whenever available. Unobservable inputs reflect management’s judgment about the assumptions market participants would use in pricing the asset or liability. Where inputs used to measure fair value of an asset or liability are from different levels of the hierarchy, the asset or liability is categorized based on the lowest level input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input requires judgment. The fair value hierarchy includes three levels based on the objectivity of the inputs as follows: • Level 1 inputs are quoted prices in active markets as of the measurement date for identical assets or liabilities that the Company has the ability to access. • Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates, benchmark yields, issuer spreads, new issue data, and collateral performance. • Level 3 inputs are unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. 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 deposits; 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

Business Acquisitions

Business Acquisitions	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Business Acquisitions	Business Acquisitions TD Ameritrade On October 6, 2020 Schwab completed its previously announced acquisition of TD Ameritrade. As a result of the acquisition, TDA Holding became a wholly-owned subsidiary of CSC. TD Ameritrade provides securities brokerage services, including trade execution, clearing services, and margin lending, through its broker-dealer subsidiaries, and futures and foreign exchange trade execution services through its FCM and FDM subsidiary. TD Ameritrade also provides cash sweep and deposit account products through the IDA agreement, as well as bank deposit account sweep agreements with other third-party depository institutions. The Company anticipates this transaction will add scale to help support the Company’s ongoing efforts to enhance the client experience, provide deeper resources for individual investors as well as RIAs, and continue to improve its operating efficiency. In exchange for each share of TD Ameritrade common stock, TD Ameritrade stockholders received 1.0837 shares of CSC common stock, except for TD Bank and its affiliates which received a portion in nonvoting common stock. In connection with the transaction, Schwab issued approximately 586 million common shares to TD Ameritrade stockholders consisting of approximately 509 million shares of common stock and approximately 77 million shares of nonvoting common stock, as described below. For further details on the new class of nonvoting common stock, see Note 19. Information regarding the acquisition is provisional and based on information that was available in the limited time since October 6, 2020. Due to the timing of the close of the acquisition, the information described below will be finalized in subsequent periods as prescribed in ASC 805, Business Combinations . The fair value of the purchase price transferred upon completion of the acquisition included the fair value of CSC common stock and nonvoting common stock that was issued to TD Ameritrade stockholders, as well as the fair value of assumed TD Ameritrade equity awards attributable to pre-combination services. The provisional purchase price was calculated as follows: Fair value of consideration for TD Ameritrade outstanding common stock $ 21,664 Fair value of replaced TD Ameritrade equity awards attributable to pre-combination services (1) 94 Provisional purchase price $ 21,758 (1) Share-based awards held by TD Ameritrade employees prior to the acquisition date were assumed by Schwab and converted into share-based awards with respect to CSC common stock, after giving effect to the exchange ratio of 1.0837. Such share-based awards are otherwise subject to the same terms and conditions as were applicable immediately before the merger, except for performance-based restricted stock units which were converted into time-based restricted stock units. The portion of the fair value of the share-based awards that relates to services performed by the employees prior to the acquisition date is included in the purchase price. The Company accounted for the TD Ameritrade acquisition as a business combination under GAAP and accordingly, the purchase price was allocated to the assets acquired and liabilities assumed based on their estimated fair values, except for certain exceptions to the recognition principle of acquisition accounting, such as leases, share-based payments, and income taxes, as of the date of acquisition. The determination of fair values requires management to make significant estimates and assumptions. The estimated fair values of the assets acquired and liabilities assumed are considered provisional and are based on currently available information. The Company believes that the information available provides a reasonable basis for estimating the fair values of assets acquired and liabilities assumed; however, these provisional estimates may be adjusted upon the availability of new information regarding facts and circumstances which existed at the acquisition date. The Company expects to finalize the valuation of assets and liabilities as soon as practicable, but not later than one year from the acquisition date. Any adjustments to the initial estimates of the fair values of the acquired assets and liabilities assumed will be recorded as adjustments to the respective assets and liabilities, with the residual amounts allocated to goodwill. The following table summarizes provisional information including the purchase price, fair value estimates of the assets acquired and liabilities assumed, and resulting goodwill as of the October 6, 2020 acquisition date. Purchase price $ 21,758 Fair values of assets acquired: Cash and cash equivalents 3,484 Cash and investments segregated and on deposit for regulatory purposes 14,236 Receivables from brokerage clients 28,009 Available for sale securities 1,779 Acquired intangible assets 8,880 Equipment, office facilities, and property 470 Other assets 3,088 Total assets acquired 59,946 Fair values of liabilities assumed: Payables to brokerage clients 37,599 Accrued expenses and other liabilities 6,975 Long-term debt 3,829 Total liabilities assumed 48,403 Fair value of net identifiable assets acquired 11,543 Goodwill $ 10,215 The provisional identifiable tangible and intangible assets of $470 million and $8.9 billion, respectively, are subject to depreciation and amortization. The following table summarizes the major classes of tangible and intangible assets and their respective estimated fair values and weighted-average useful lives: Estimated Fair Value Weighted-Average Estimated Useful Life (Years) Equipment, office facilities, and property Real property (1) $ 226 37 Personal property (2) 162 2 Construction in progress 49 N/A Land 33 N/A Total equipment, office facilities, and property $ 470 Acquired intangible assets Client relationships $ 8,700 20 Existing technology 165 2 Trade names 15 2 Total acquired intangible assets $ 8,880 (1) Consists primarily of buildings. (2) Consists primarily of equipment and leasehold improvements. N/A Not applicable. The estimated fair values of real property, personal property, construction in progress, and land were determined using a sales comparison and cost approach, including consideration of functional and economic obsolescence. The Company estimated the weighted-average useful lives of the assets based on the current condition and expected future use of the assets. The estimated fair values of client relationships, existing technology, and trade names were estimated using a multi-period excess earnings approach, cost approach, and relief from royalty approach, respectively. The multi-period excess earnings method starts with a forecast of all of the expected future net cash flows associated with the asset, and the relief from royalty method starts with a forecast of the royalties saved by the Company because it owns the asset. The forecasts are then adjusted to present value by applying an appropriate discount rate that reflects the risks associated with the cash flow streams. The cost approach uses replacement cost as an indicator of fair value. Goodwill of $10.2 billion is primarily attributable to the scale, skill sets, operations, and synergies that can be leveraged to enable the combined company to build a stronger enterprise and will not be deductible for tax purposes. The goodwill assigned to the Investor Services and Advisor Services segments were $6.4 billion and $3.8 billion, respectively. The Company’s consolidated statements of income include total net revenues and net income attributable to the TD Ameritrade acquisition of $1.7 billion and $583 million, respectively, for the period October 6, 2020 through December 31, 2020. In connection with the TD Ameritrade acquisition, the Company incurred various professional fees and other costs such as advisory, legal, and accounting fees. In total, the Company incurred acquisition costs of $56 million and $11 million for the years ended December 31, 2020 and 2019, respectively, which are primarily included in professional services on the consolidated statements of income. Pro Forma Financial Information (Unaudited) The following table presents unaudited pro forma financial information as if the TD Ameritrade acquisition had occurred on January 1, 2019. The unaudited pro forma results reflect after-tax adjustments for acquisition costs, amortization and depreciation of acquired intangible and tangible assets, the impact of the amended IDA agreement which reduced the service fee on client cash deposits held at the TD Depository Institutions to 15 basis points from the 25 basis points paid by TD Ameritrade under its previous IDA agreement, and other immaterial adjustments for the effects of purchase accounting, and do not reflect potential revenue growth or cost savings that may be realized as a result of the acquisition. Pro forma net income for the year ended December 31, 2020 excludes after-tax acquisition costs for both Schwab and TD Ameritrade of $115 million. These costs and after-tax acquisition costs of $30 million incurred in 2019 by Schwab and TD Ameritrade are included in pro forma net income for the year ended December 31, 2019. The unaudited pro forma financial information is presented for informational purposes only, and is not necessarily indicative of future operations or results had the TD Ameritrade acquisition been completed as of January 1, 2019. Year Ended 2020 2019 Total net revenues $ 16,514 $ 16,561 Net income 4,655 5,240 USAA-IMCO On May 26, 2020, the Company completed its acquisition of the assets of USAA-IMCO for $1.6 billion in cash. Along with the asset purchase agreement, the companies entered into a long-term referral agreement that makes Schwab the exclusive provider of wealth management and investment brokerage services for USAA members. The USAA-IMCO acquisition has added scale to the Company’s operations through the addition of over one million brokerage and managed portfolio accounts with approximately $80 billion in client assets at the acquisition date. The transaction also provides Schwab the opportunity to further expand our client base by serving USAA’s members through the long-term referral agreement. The Company accounted for the USAA-IMCO acquisition as a business combination under GAAP and accordingly, the purchase price was allocated to the assets acquired and liabilities assumed based on their estimated fair values as of the date of acquisition. During the three months ended September 30, 2020, we made a $43 million post-closing adjustment to the purchase price resulting in reductions of $9 million and $34 million to our initial estimates of the fair value of the intangible assets acquired and goodwill, respectively. The Company finalized the valuation of assets and liabilities during the three months ended December 31, 2020, resulting in no additional adjustments to the estimated fair values as of the date of acquisition. The following table summarizes the purchase price, fair value estimates of the assets acquired and liabilities assumed, and resulting goodwill as of the May 26, 2020 acquisition date, adjusted for the post-closing adjustments described above. Purchase price $ 1,581 Fair values of assets acquired: Cash segregated and on deposit for regulatory purposes 4,392 Receivables from brokerage clients 80 Acquired intangible assets 1,109 Total assets acquired 5,581 Fair values of liabilities assumed: Payables to brokerage clients 4,472 Total liabilities assumed 4,472 Fair value of net identifiable assets acquired 1,109 Goodwill $ 472 The identifiable intangible assets of $1.1 billion are subject to amortization. The following table summarizes the major classes of intangible assets acquired and their respective estimated fair values and weighted-average useful lives. Estimated Fair Value Weighted-Average Estimated Useful Life (years) Client relationships $ 962 18 Brokerage referral agreement (1) 142 20 Royalty-free license 5 7 Total acquired intangible assets $ 1,109 (1) The brokerage referral agreement has an initial term of 5 years and is automatically renewable for one The estimated fair values of client relationships, the brokerage referral agreement, and the royalty-free license were estimated using the multi-period excess earnings, with-and-without, and relief from royalty methods, respectively. The multi-period excess earnings method starts with a forecast of all of the expected future net cash flows associated with the asset, and the relief from royalty method starts with a forecast of the royalties saved by the Company because it owns the asset. The with-and-without method quantifies the difference between forecasted cash flows with the asset and without the asset. The forecasts are then adjusted to present value by applying an appropriate discount rate that reflects the risks associated with the cash flow streams. Goodwill recorded of $472 million, primarily attributable to the additional scale and anticipated synergies from the USAA-IMCO acquisition, was assigned to the Investor Services segment and is deductible for tax purposes. The Company’s consolidated statements of income include total net revenues and net loss attributable to the USAA-IMCO acquisition of $235 million and $51 million, respectively, for the period May 26, 2020 through December 31, 2020. In connection with the acquisition, the Company agreed to reimburse USAA for certain contract termination and other fees and severance costs incurred by USAA. These costs totaled $21 million for the year ended December 31, 2020 and are included in other expense on the consolidated statements of income. Additionally, the Company incurred various professional fees and other costs related to the USAA-IMCO acquisition, such as advisory, legal, and accounting fees. In total, the Company incurred acquisition costs of $54 million and $14 million for the years ended December 31, 2020 and 2019, respectively, which are primarily included in professional services, other expense, and compensation and benefits on the consolidated statements of income. Pro Forma Financial Information (Unaudited) The following table presents unaudited pro forma financial information as if the USAA-IMCO acquisition had occurred on January 1, 2019. The unaudited pro forma results reflect after-tax adjustments for acquisition costs and amortization of acquired intangible assets, and do not reflect potential revenue growth or cost savings that may be realized as a result of the acquisition. Pro forma net income for the year ended December 31, 2020 excludes after-tax acquisition costs of $41 million. These costs, and after-tax acquisition costs of $10 million incurred in 2019, are included in pro forma net income for the year ended December 31, 2019. The unaudited pro forma financial information is presented for informational purposes only, and is not necessarily indicative of future operations or results had the USAA-IMCO acquisition been completed as of January 1, 2019. Year Ended 2020 2019 Total net revenues $ 11,794 $ 11,057 Net income 3,005 3,407

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 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: Year Ended December 31, 2020 2019 2018 Net interest revenue Interest revenue $ 6,531 $ 7,580 $ 6,680 Interest expense (418) (1,064) (857) Net interest revenue 6,113 6,516 5,823 Asset management and administration fees Mutual funds, ETFs, and CTFs (1) 1,770 1,747 1,837 Advice solutions 1,443 1,198 1,139 Other (1) 262 266 253 Asset management and administration fees 3,475 3,211 3,229 Trading revenue Commissions 739 549 685 Order flow revenue (2) 621 135 139 Principal transactions 56 68 78 Trading revenue (2) 1,416 752 902 Bank deposit account fees 355 — — Other (2) 332 242 178 Total net revenues $ 11,691 $ 10,721 $ 10,132 (1) Beginning in the first quarter of 2019, a change was made to move CTFs from other asset management and administration fees. Prior period amounts have been recast to reflect this change. (2) Beginning in the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Amounts in prior periods have been reclassified to reflect this change. For a summary of revenue provided by our reportable segments, see Note 24. 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 were $579 million at December 31, 2020 and $356 million at December 31, 2019 and were recorded in other assets on the consolidated balance sheets. Schwab does not have any other significant contract assets or contract liability balances as of December 31, 2020 and 2019.

Receivables from and Payables t

Receivables from and Payables to Brokerage Clients	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Receivables from and Payables to Brokerage Clients	Receivables from and Payables to Brokerage Clients Receivables from and payables to brokerage clients are detailed below: December 31, 2020 2019 Receivables Margin loans, net of allowance for credit losses $ 60,865 $ 19,474 Other brokerage receivables 3,575 2,293 Receivables from brokerage clients — net $ 64,440 $ 21,767 Payables Interest-bearing payables $ 84,642 $ 29,009 Non-interest-bearing payables 19,559 10,211 Payables to brokerage clients $ 104,201 $ 39,220 At December 31, 2020, approximately 17% of total CS&Co and TD Ameritrade, Inc. client accounts were located in California. At December 31, 2019, approximately 22% of CS&Co’s total client accounts were located in California.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 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: December 31, 2020 Amortized Gross Unrealized Gross Unrealized Fair Available for sale securities U.S. agency mortgage-backed securities $ 283,911 $ 7,005 $ 563 $ 290,353 Asset-backed securities (1) 18,808 174 84 18,898 Corporate debt securities (2) 12,408 388 — 12,796 U.S. Treasury securities 10,631 25 — 10,656 U.S. state and municipal securities 1,544 153 — 1,697 Foreign government agency securities 1,411 2 — 1,413 Non-agency commercial mortgage-backed securities 1,213 52 — 1,265 Certificates of deposit 300 — — 300 Other 22 — — 22 Total available for sale securities $ 330,248 $ 7,799 $ 647 $ 337,400 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 51% and 43% of asset-backed securities held as of December 31, 2020 and 2019, respectively, were Federal Family Education Loan Program Asset-Backed Securities. Asset-backed securities collateralized by credit card receivables represented approximately 36% and 42% of the asset-backed securities held as of December 31, 2020 and 2019, respectively. (2) As of December 31, 2020 approximately 46% 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 consolidated balance sheets, but excluded from this table is $2.5 billion of AFS commercial paper as of December 31, 2019 (none as of December 31, 2020). These holdings have maturities of three months or less and an aggregate market value equal to amortized cost. On January 1, 2019 the Company transferred certain U.S. agency mortgage-backed securities with a fair value of $8.8 billion from the HTM category to the AFS category as permitted by ASU 2017-12, “ Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities” (ASU 2017-12). This transfer resulted in a net of tax increase to AOCI of $19 million. 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, Investment – Debt Securities 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 December 31, 2020, our banking subsidiaries had pledged securities with a fair value of $44.7 billion as collateral to secure borrowing capacity on secured credit facilities with the FHLB (see Note 13). 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 $7.9 billion as collateral for this facility at December 31, 2020. The Company also pledges securities issued by federal agencies to secure certain trust deposits. The fair value of these pledged securities was $1.2 billion at December 31, 2020. Securities with unrealized losses, aggregated by category and period of continuous unrealized loss, are as follows: Less than 12 months Total December 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized Available for sale securities U.S. agency mortgage-backed securities $ 61,706 $ 551 $ 4,774 $ 12 $ 66,480 $ 563 Asset-backed securities 1,398 13 5,822 71 7,220 84 Total $ 63,104 $ 564 $ 10,596 $ 83 $ 73,700 $ 647 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 December 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. For a description of management’s quarterly evaluation of AFS securities in unrealized loss positions see Note 2. No amounts were recognized as credit loss expense and no securities were written down to fair value through earnings for the year ended December 31, 2020. None of the Company’s AFS securities held as of December 31, 2020 had an allowance for credit losses. No amounts were recognized as OTTI in earnings or other comprehensive income during the years ended December 31, 2019 and 2018. As of December 31, 2019, Schwab did not hold any securities on which OTTI was previously recognized. The Company had $634 million of accrued interest receivable as of December 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 consolidated balance sheets. There were no write-offs of accrued interest receivable on AFS securities during the year ended December 31, 2020, and no write-offs of accrued interest receivable on AFS securities or HTM securities during the year ended December 31, 2019. 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: December 31, 2020 Within After 1 year through After 5 years through After Total U.S. agency mortgage-backed securities $ 1,758 $ 22,392 $ 63,400 $ 202,803 $ 290,353 Asset-backed securities 15 5,975 4,012 8,896 18,898 Corporate debt securities 3,632 6,429 2,735 — 12,796 U.S. Treasury securities 10,316 340 — — 10,656 U.S. state and municipal securities — 116 824 757 1,697 Foreign government agency securities 125 1,288 — — 1,413 Non-agency commercial mortgage-backed securities — — — 1,265 1,265 Certificates of deposit 300 — — — 300 Other — — — 22 22 Total fair value 16,146 36,540 70,971 213,743 337,400 Total amortized cost $ 16,080 $ 35,119 $ 68,080 $ 210,969 $ 330,248 Weighted-average yield (1) 1.01 % 2.09 % 1.81 % 1.10 % 1.35 % (1) The weighted-average yield is computed using the amortized cost at December 31, 2020. Proceeds and gross realized gains and losses from sales of AFS securities are as follows: Year Ended December 31, 2020 2019 2018 Proceeds $ 4,801 $ 24,495 $ 115 Gross realized gains 5 16 — Gross realized losses 1 10 —

Bank Loans and Related Allowanc

Bank Loans and Related Allowance for Credit Losses	12 Months Ended
	Dec. 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 portfolio segment and class of financing receivable is as follows: December 31, 2020 Current 30-59 days 60-89 days > 90 days past due and other (3) Total past due and other Total Allowance for credit Total bank – net Residential real estate: First Mortgages (1,2) $ 14,804 $ 27 $ 1 $ 72 $ 100 $ 14,904 $ 22 $ 14,882 HELOCs (1,2) 823 1 1 17 19 842 5 837 Total residential real estate 15,627 28 2 89 119 15,746 27 15,719 Pledged asset lines 7,901 10 5 — 15 7,916 — 7,916 Other 181 — — — — 181 3 178 Total bank loans $ 23,709 $ 38 $ 7 $ 89 $ 134 $ 23,843 $ 30 $ 23,813 December 31, 2019 Residential real estate: 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 Total residential real estate 12,770 26 5 20 51 12,821 15 12,806 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 $72 million and $74 million at December 31, 2020 and 2019, respectively. (2) At December 31, 2020 and 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 December 31, 2020 or 2019. At December 31, 2020, CSB had pledged the full balance of First Mortgages and HELOCs pursuant to a blanket lien status collateral arrangement to secure borrowing capacity on a secured credit facility with the FHLB (see Note 13). Changes in the allowance for credit losses on bank loans were as follows: December 31, 2020 December 31, 2019 December 31, 2018 First Mortgages HELOCs Total residential real estate Other Total (1) First Mortgages HELOCs Total residential real estate Other Total (1) First Mortgages HELOCs Total residential real estate Other Total (1) Balance at beginning of year $ 11 $ 4 $ 15 $ 3 $ 18 $ 14 $ 5 $ 19 $ 2 $ 21 $ 16 $ 8 $ 24 2 $ 26 Adoption of ASU 2016-13 1 — 1 — 1 — — — — — — — — — — Charge-offs — — — — — — — — — — — — — (1) (1) Recoveries 1 — 1 — 1 1 1 2 — 2 1 1 2 — 2 Provision for credit losses 9 1 10 — 10 (4) (2) (6) 1 (5) (3) (4) (7) 1 (6) Balance at end of year $ 22 $ 5 $ 27 $ 3 $ 30 $ 11 $ 4 $ 15 $ 3 $ 18 $ 14 $ 5 $ 19 $ 2 $ 21 Note: Substantially all of the bank loans were collectively evaluated for impairment at December 31, 2019 and 2018. (1) All PALs were fully collateralized by securities with fair values in excess of borrowings as of each period presented. Despite the impact of COVID-19 on the economy and the continued uncertainty of the economic outlook, credit quality metrics and overall performance of the bank loan portfolios remained strong in 2020. The ACL increased from January 1, 2020 to December 31, 2020, primarily due to growth in mortgage loan origination during the year, driven by the continued low interest rate environment, and also reflects management’s consideration of qualitative factors associated with the potential persistence and effects of COVID-19 on the economic recovery. At December 31, 2020, management’s reasonable and supportable forecast period extends through 2024, with limited growth in home prices anticipated over the near term and unemployment expected to remain above 5% through the end of 2022. A summary of bank loan-related nonperforming assets and troubled debt restructurings is as follows: December 31, 2020 2019 Nonaccrual loans (1) $ 89 $ 22 Other real estate owned (2) 1 1 Total nonperforming assets 90 23 Troubled debt restructurings 1 2 Total nonperforming assets and troubled debt restructurings $ 91 $ 25 (1) Nonaccrual loans include nonaccrual troubled debt restructurings. (2) Included in other assets on the 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. 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 December 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 $ 1 $ — $ — $ — $ — $ 2 $ 3 $ — $ — $ — 620 – 679 29 13 3 8 17 14 84 1 3 4 680 – 739 794 355 105 181 166 253 1,854 82 80 162 ≥740 7,150 2,452 449 858 1,029 1,025 12,963 380 296 676 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Origination LTV ≤70% $ 6,653 $ 2,211 $ 396 $ 793 $ 1,024 $ 911 $ 11,988 $ 351 $ 269 $ 620 >70% – ≤90% 1,321 609 161 254 188 380 2,913 112 107 219 >90% – ≤100% — — — — — 3 3 — 3 3 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Weighted Average <620 $ 5 $ 2 $ 1 $ 4 $ 2 $ 17 $ 31 $ 3 $ 9 $ 12 620 – 679 67 34 16 21 20 40 198 12 20 32 680 – 739 784 252 66 121 110 171 1,504 58 55 113 ≥740 7,118 2,532 474 901 1,080 1,066 13,171 390 295 685 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Estimated Current LTV (1) ≤70% $ 6,999 $ 2,582 $ 533 $ 1,034 $ 1,207 $ 1,283 $ 13,638 $ 452 $ 368 $ 820 >70% – ≤90% 975 238 24 13 5 11 1,266 11 9 20 >90% – ≤100% — — — — — — — — 1 1 >100% — — — — — — — — 1 1 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Percent of Loans on 0.09 % 0.38 % 1.02 % 0.87 % 0.24 % 2.82 % 0.48 % 1.37 % 2.80 % 2.02 % (1) Represents the LTV for the full line of credit (drawn and undrawn) for revolving HELOCs. December 31, 2020 Balance Weighted Average Updated FICO Percent of Loans on Nonaccrual Status Pledged Asset Lines Weighted-Average LTV (1) =70% $ 7,916 770 — (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 December 31, 2020, First Mortgage loans of $12.9 billion had adjustable interest rates. Substantially all of these mortgages have initial fixed interest rates for three three At December 31, 2020 and 2019, Schwab had $43 million and $46 million, respectively, of accrued interest on bank loans, which is excluded from the amortized cost basis of bank loans and included in other assets on the 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: December 31, 2020 2019 HELOCs converted to amortizing loans $ 26 $ 44 The following table presents when current outstanding HELOCs will convert to amortizing loans: December 31, 2020 Balance Converted to an amortizing loan by period end $ 379 Within 1 year 31 > 1 year – 3 years 88 > 3 years – 5 years 95 > 5 years 249 Total $ 842 At December 31, 2020, $664 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 December 31, 2020, the borrowers on approximately 52% of HELOC loan balances outstanding only paid the minimum amount due.

Equipment, Office Facilities, a

Equipment, Office Facilities, and Property	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Equipment, Office Facilities, and Property	Equipment, Office Facilities, and Property Equipment, office facilities, and property are detailed below: December 31, 2020 2019 Software $ 2,314 $ 1,876 Buildings 1,444 1,056 Leasehold improvements 455 360 Information technology equipment 374 253 Construction in progress 325 324 Furniture and equipment 288 241 Land 208 163 Telecommunications equipment 135 91 Other 7 — Total equipment, office facilities, and property 5,550 4,364 Accumulated depreciation and amortization (2,667) (2,236) Total equipment, office facilities, and property — net (1) $ 2,883 $ 2,128 (1) The Company assumed the estimated fair value of TD Ameritrade’s equipment, office facilities and property as of the date acquisition on October 6, 2020. See Note 3.

Goodwill and Acquired Intangibl

Goodwill and Acquired Intangible Assets	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Acquired Intangible Assets	Goodwill and Acquired Intangible Assets Acquired intangible assets and goodwill are detailed below: December 31, 2020 December 31, 2019 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Client relationships $ 10,089 $ 386 $ 9,703 $ 274 $ 228 $ 46 Technology 305 112 193 89 84 5 Trade names 113 18 95 91 14 77 Total acquired intangible assets $ 10,507 $ 516 $ 9,991 $ 454 $ 326 $ 128 Estimated future annual amortization expense for acquired intangible assets as of December 31, 2020 is as follows: 2021 $ 615 2022 596 2023 534 2024 518 2025 512 Thereafter 7,139 Total $ 9,914 Note: The above schedule excludes indefinite-lived intangible assets of $77 million. The changes in the carrying amount of goodwill, as allocated to our reportable segments, are presented in the following table: Investor Advisor Total Balance at December 31, 2018 $ 1,096 $ 131 $ 1,227 Goodwill acquired and other changes during the period — — — Balance at December 31, 2019 1,096 131 1,227 Goodwill acquired in TD Ameritrade acquisition 6,380 3,835 10,215 Goodwill acquired in other acquisitions 494 16 510 Balance at December 31, 2020 $ 7,970 $ 3,982 $ 11,952 See Note 3 for additional information on the Company’s acquisitions.

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets The components of other assets are as follows: December 31, 2020 2019 Other receivables from brokers, dealers, and clearing organizations $ 1,748 $ 235 Receivables — interest, dividends, and other 1,180 788 Other investments (1) 1,019 633 Operating lease ROU assets 937 577 Securities borrowed 873 735 Other securities owned at fair value 687 718 Customer contract receivables 579 356 Capitalized contract costs 303 281 Other 457 264 Total other assets $ 7,783 $ 4,587 (1) Primarily CRA-related, including LIHTC investments; also includes investments in FHLB stock of $29 million and $35 million at December 31, 2020 and 2019, respectively, which can only be sold to the issuer at its par value. Any cash dividends received from investments in FHLB stock are recognized as interest revenue in the consolidated statements of income. During 2020, CSB and CSPB became members of the Federal Reserve and as a condition of membership, are required to hold Federal Reserve Stock. As such, other investments also includes investments in FRB stock of $191 million at December 31, 2020. Capitalized contract costs Capitalized contract costs relate to incremental costs of obtaining a contract with a customer, including sales commissions paid to employees for obtaining contracts with clients. These costs are amortized to expense on a straight-line basis over a period that is consistent with how the related revenue is recognized. Capitalized contract costs were $303 million and $281 million at December 31, 2020 and 2019, respectively. Amortization expense related to capitalized contract costs was $63 million and $55 million in 2020 and 2019, respectively, which was recorded in compensation and benefits expense on the consolidated statements of income.

Variable Interest Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2020
Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest EntitiesAs of December 31, 2020 and 2019, all of Schwab’s involvement with VIEs is through CSB’s CRA-related investments and most of those are related to 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. During 2020 and 2019, CSB recorded amortization of $56 million and $39 million, respectively, and recognized tax credits and other tax benefits of $69 million and $47 million, respectively, associated with these investments. The amortization, as well as the tax credits and other tax benefits, are included in taxes on income. 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: December 31, 2020 December 31, 2019 Aggregate Aggregate Maximum exposure Aggregate Aggregate Maximum exposure to loss LIHTC Investments (1) $ 649 $ 344 $ 649 $ 516 $ 275 $ 516 Other CRA Investments (2) 118 — 152 120 — 154 Total $ 767 $ 344 $ 801 $ 636 $ 275 $ 670 (1) Aggregate assets and aggregate liabilities are included in other assets and accrued expenses and other liabilities, respectively, on the consolidated balance sheets. (2) Other CRA investments are accounted for as loans at amortized cost, equity method investments, AFS securities, or using the adjusted cost method. Aggregate assets are included in AFS securities, bank loans – net, or other assets on the 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 2021 and 2024. During the years ended December 31, 2020 and 2019, Schwab did not provide or intend to provide financial or other support to the VIEs that it was not contractually required to provide.

Bank Deposits

Bank Deposits	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Bank Deposits	Bank Deposits Bank deposits consist of interest-bearing and non-interest-bearing deposits as follows: December 31, 2020 2019 Interest-bearing deposits: Deposits swept from brokerage accounts $ 332,513 $ 201,531 Checking 17,785 12,650 Savings and other 6,739 5,168 Total interest-bearing deposits 357,037 219,349 Non-interest-bearing deposits 985 745 Total bank deposits $ 358,022 $ 220,094

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Borrowings	Borrowings CSC Senior Notes 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. TDA Senior Notes On October 6, 2020, the effective date of our acquisition of TD Ameritrade, TD Ameritrade’s debt outstanding was recognized at provisional fair value and with no change in existing terms. See Note 3 The TD Ameritrade debt outstanding on the acquisition date included $3.6 billion par value of TDA Senior Notes. These notes are unsecured obligations. TDA Holding may redeem some or all of the TDA 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 TDA Senior Notes and quarterly for the floating-rate TDA Senior Notes. The following table lists long-term debt by instrument outstanding as of December 31, 2020 and 2019. Date of Principal Amount Outstanding Issuance 2020 2019 CSC Fixed-rate Senior Notes: 4.450% due July 22, 2020 (1) 07/22/10 $ — $ 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 0.900% due March 11, 2026 12/11/20 1,250 — 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 — 1.650% due March 11, 2031 12/11/20 750 — Floating-rate Senior Notes: Three-month LIBOR + 0.32% due May 21, 2021 05/22/18 600 600 Total CSC Senior Notes 9,881 7,481 TDA Fixed-rate Senior Notes: 2.950% due April 1, 2022 03/09/15 750 N/A 3.750% due April 1, 2024 11/01/18 400 N/A 3.625% due April 1, 2025 10/22/14 500 N/A 3.300% due April 1, 2027 04/27/17 800 N/A 2.750% due October 1, 2029 08/16/19 500 N/A Floating-rate TDA Senior Notes: Three-month LIBOR + 0.43% due November 1, 2021 11/01/18 600 N/A Total TDA Senior Notes 3,550 N/A Other financing 6 — Unamortized premium/(discount) — net 249 (14) Debt issuance costs (54) (37) Total long-term debt $ 13,632 $ 7,430 (1) Matured on July 22, 2020. N/A Not applicable. Annual maturities on long-term debt outstanding at December 31, 2020, are as follows: Maturities 2021 $ 1,802 2022 1,008 2023 802 2024 900 2025 2,225 Thereafter 6,700 Total maturities 13,437 Unamortized discount — net 249 Debt issuance costs (54) Total long-term debt $ 13,632 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 December 31, 2020 and 2019, the collateral pledged provided a total borrowing capacity of $55.1 billion and $34.2 billion, respectively, of which no amounts were outstanding at the end of either year. As a condition of the FHLB borrowings, we are required to hold FHLB stock, which was recorded in other assets on the consolidated balance sheets. The investment in FHLB stock was $29 million and $35 million at December 31, 2020 and 2019, respectively. 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 December 31, 2020 and 2019, the collateral pledged provided total borrowing capacity of $7.9 billion and $8.5 billion, respectively, of which no amounts were outstanding at the end of either year. During 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 $191 million at December 31, 2020. TD Ameritrade Lines of Credit and Revolving Credit Facilities TDAC maintains secured uncommitted lines of credit, under which TDAC borrows on either a demand or short-term basis and pledges client margin securities as collateral. There were no borrowings outstanding under the secured uncommitted lines of credit as of December 31, 2020. TDAC has access to two senior unsecured committed revolving credit facilities with an aggregate borrowing capacity of $1.5 billion, consisting of an $850 million senior revolving credit facility and a $600 million senior revolving credit facility, maturing in April 2021 and April 2022, respectively. There were no borrowings outstanding under the TDAC senior revolving facilities as of December 31, 2020. TDA Holding had access to a senior unsecured committed revolving credit facility with a borrowing capacity of $300 million. On October 6, 2020, Schwab entered into a guaranty supplement to guarantee the obligations of TD Ameritrade under this credit agreement. The provision of the guaranty supplement by Schwab was a condition for certain financial covenant and reporting obligations being modified in the credit agreement. There were no borrowings outstanding under the TDA Holding revolving credit facility as of December 31, 2020, and effective January 28, 2021, the Company terminated the TDA Holding revolving credit facility.

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases The following table details the amounts and locations of lease assets and liabilities on the consolidated balance sheet: December 31, 2020 2019 Lease assets: Balance Sheet Classification Operating lease ROU assets Other assets $ 937 $ 577 Lease liabilities: Operating lease liabilities Accrued expenses and other liabilities $ 1,033 $ 650 Lease expense for operating lease payments is recognized on a straight-line basis over the lease term. The Company had an immaterial finance lease in 2020 and immaterial sublease income for all periods presented. The components of lease expense are as follows: Year Ended December 31, 2020 2019 Lease Cost (1) Operating lease cost (2) $ 166 $ 137 Variable lease cost (3) 34 34 (1) Rent expense related to operating leases was $146 million in 2018. (2) Includes short-term leases, which are immaterial. (3) Includes payments that are entirely variable and amounts that represent the difference between payments based on an index or rate that would be reflected in the lease liability and what is actually incurred. The following tables present supplemental lease information: December 31, 2020 2019 Lease Term and Discount Rate Weighted-average remaining lease term (years) 7.02 7.15 Weighted-average discount rate 2.86 % 3.42 % Maturity of Lease Liabilities Operating Leases (1) 2021 $ 182 2022 193 2023 166 2024 134 2025 117 Thereafter 340 Total lease payments 1,132 Less: Interest 99 Present value of lease liabilities $ 1,033

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 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 $8.7 billion and $4.4 billion during 2020 and 2019, respectively. CSB purchased HELOCs with commitments of $458 million and $242 million during 2020 and 2019, respectively. The Company’s commitments to extend credit on bank lines of credit and to purchase First Mortgages are as follows: December 31, 2020 2019 Commitments to extend credit related to unused HELOCs, PALs, and other lines of credit $ 8,141 $ 10,753 Commitments to purchase First Mortgage loans 1,917 1,521 Total $ 10,058 $ 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 LOCs, in favor of the Options Clearing Corporation, which are issued by several banks. At December 31, 2020, the aggregate face amount of these LOCs totaled $15 million. There were no funds drawn under any of these LOCs at December 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. The Company 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. The Company’s liability under these arrangements is not quantifiable and may exceed the amounts it has posted as collateral. The potential requirement for the Company to make payments under these arrangements is remote. Accordingly, no liability has been recognized for these guarantees. Effective October 6, 2020, the Company acquired TD Ameritrade. The TD Ameritrade broker-dealer and FCM/FDM subsidiaries’ operations include the execution, settlement, and financing of various client securities, options, futures and foreign exchange transactions. These activities may expose the Company to credit risk and losses in the event the clients are unable to fulfill their contractual obligations. TD Ameritrade is a member of and provides guarantees to securities clearing houses and exchanges under standard membership agreements. TD Ameritrade also engages third-party firms to clear clients’ futures and options on futures transactions and to facilitate clients’ foreign exchange trading, and has agreed to indemnify these firms for any loss that they may incur from the client transactions introduced to them by TD Ameritrade. The potential requirement for the Company to make payments under these arrangements is remote. Accordingly, no liability has been recognized for these guarantees. IDA agreement: The Company’s IDA agreement with the TD Depository Institutions became effective on October 6, 2020. The IDA agreement creates responsibilities of the Company and certain contingent obligations. Pursuant to the IDA agreement, cash held in eligible brokerage client accounts must be swept off-balance sheet to money market deposit accounts at the TD Depository Institutions. Schwab provides marketing, recordkeeping and support services to the TD Depository Institutions with respect to the money market deposit accounts for which Schwab receives an aggregate monthly fee, determined by reference to certain yields, less a service fee on client cash deposits held at the TD Depository Institutions, FDIC deposit assessments, and interest on deposits paid to clients. Though unlikely, in the event the sweep arrangement fee computation were to result in a negative amount in any given month, Schwab would be required to pay the TD Depository Institutions. Pursuant to the IDA agreement, Schwab will be required to move all uninsured IDA balances out of the IDA sweep program on June 30, 2021. The IDA agreement also provides that, starting July 1, 2021, Schwab will have the option to migrate up to $10 billion of IDA balances every 12 months to Schwab’s balance sheet, subject to certain limitations and adjustments. The Company’s ability to migrate these balances to its balance sheet is dependent upon multiple factors including having sufficient capital levels to sustain these incremental deposits and certain binding limitations specified in the IDA agreement, including the requirement that Schwab can only move IDA balances designated as floating-rate obligations. The amount of Schwab’s initial potential transfer will also be affected by the net growth or decline in the IDA balance from immediately prior to the October 6, 2020 effective date of the IDA agreement through June 30, 2021. In addition, Schwab also must maintain a minimum $50 billion IDA balance through June 2031, and at least 80% of the IDA balances must be designated as fixed-rate obligations through June 2026. The total ending IDA balance was $144.6 billion as of October 5, 2020, and $154.1 billion as of December 31, 2020. Were IDA balances to decline below the required IDA balance minimum, Schwab could be required to direct additional sweep cash from its balance sheet to the IDA program. 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 that a material loss could be incurred or where the matter may otherwise be of significant interest to stockholders. Unless otherwise 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. Ford Order Routing Litigation : On September 15, 2014, TDA Holding, TD Ameritrade, Inc. and its former CEO, Frederick J. Tomczyk, were sued on behalf of a putative class of TD Ameritrade, Inc. clients alleging that defendants failed to seek best execution and made misrepresentations and omissions regarding its order routing practices. Plaintiffs seek unspecified damages and injunctive and other relief. On September 14, 2018, the District Court granted plaintiff’s motion for class certification, and defendants petitioned for an immediate appeal of the District Court’s class certification decision. The U.S. Court of Appeals, 8th Circuit, granted defendants’ petition on December 18, 2018, and a decision on defendants’ appeal is pending. Defendants are vigorously contesting the lawsuit, and the Company is unable to predict the outcome or the potential loss, if any, that may result. TD Ameritrade Acquisition Litigation : As disclosed previously, Schwab and TD Ameritrade have been responding to a lawsuit challenging the acquisition which was filed on May 12, 2020 in the Delaware Court of Chancery (Hawkes v. Bettino et al.) on behalf of a proposed class of TD Ameritrade’s stockholders, excluding, among others, TD Bank. The initial complaint named as defendants each member of the TD Ameritrade board of directors at the time the acquisition was approved, as well as TD Bank and Schwab. On June 11, 2020, plaintiff dismissed a claim that had sought to enjoin voting on or consummation of the acquisition. On February 5, 2021, plaintiff filed an amended complaint naming an officer and certain directors of TD Ameritrade at the time the acquisition was approved, as well as TD Bank, certain TD Bank related entities, and Schwab. The amended complaint asserts separate claims for breach of fiduciary duty by the TD Ameritrade officer, certain members of the TD Ameritrade board and TD Bank, and against Schwab for aiding and abetting such

Exit and Other Related Liabilit

Exit and Other Related Liabilities	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Exit and Other Related Liabilities	Exit and Other Related Liabilities The integration of TD Ameritrade’s operations is expected to occur over 18 to 36 months from the October 6, 2020 acquisition date. To achieve our integration objectives, the Company expects to recognize significant additional acquisition and integration-related costs and capital expenditures throughout the integration process. Such acquisition and integration-related costs have included and are expected to continue to include professional fees, such as legal, advisory, and accounting fees, costs for technology enhancements, and compensation and benefits expenses for employees and contractors involved in the integration work. The Company’s acquisition and integration-related spending also includes exit and other related costs, such as severance and other employee termination benefits, retention costs, as well as costs related to facility closures, including accelerated depreciation or impairments of assets in those locations. Exit and other related costs are a component of the Company’s overall acquisition and integration-related spending, and support the Company’s ability to achieve integration objectives including expected synergies. The Company is in the early stages of integration, and our estimates of the nature, amounts, and timing of recognition of acquisition and integration-related costs are subject to change based on a number of factors, including the expected duration and complexity of the integration process and the heightened uncertainty of the current economic environment. More specifically, factors that could cause variability in our expected acquisition and integration-related costs include the level of employee attrition, workforce redeployment from eliminated positions into open roles, changes in the levels of client activity, and increased real estate-related exit cost variability due to the effects of the COVID-19 pandemic. Inclusive of costs recognized in 2020, Schwab currently expects to incur total exit and other related costs for the integration of TD Ameritrade ranging from $650 million to $1 billion, consisting of employee compensation and benefits, facility exit costs, and certain other costs. During 2020, the Company incurred pre-tax charges of $186 million for acquisition-related exit costs. The Company expects the remaining exit and other related costs be incurred and charged to expense over the next 15 to 33 months. In addition to ASC 420 Exit or Disposal Cost Obligations , certain of the costs associated with these activities are accounted for in accordance with ASC 360 Property, Plant and Equipment , ASC 712 Compensation – Nonretirement Post Employment Benefits , ASC 718 Compensation – Stock Compensation , and ASC 842 Leases . The following is a summary of the activity in the Company’s exit and other related liabilities for the year ended December 31, 2020: Investor Services Advisor Services Total Balance at December 31, 2019 $ — $ — $ — Exit and other related liabilities assumed in business acquisition 18 5 23 Costs incurred and charged to expense (1) 138 38 176 Costs paid or otherwise settled (70) (19) (89) Balance at December 31, 2020 (2) $ 86 $ 24 $ 110 (1) Costs incurred for severance pay and other termination benefits, as well as retention costs, are included in employee compensation and benefits on the consolidated statements of income. (2) Included in accrued and expenses and other liabilities on the consolidated balance sheets. The following table summarizes the exit and other related costs incurred by the Company for the year ended December 31, 2020, which represents cumulative costs incurred to date: Investor Services Advisor Services Employee Facility Exit Costs (1) Investor Services Total Employee Facility Exit Costs (1) Advisor Services Total Total Compensation and benefits $ 138 $ — $ 138 $ 38 $ — $ 38 $ 176 Occupancy and equipment — 6 6 — 1 1 7 Depreciation and amortization — 2 2 — 1 1 3 Total $ 138 $ 8 $ 146 $ 38 $ 2 $ 40 $ 186 (1) Costs related to facility closures. These costs, which are comprised of accelerated amortization of ROU assets and accelerated depreciation of fixed assets, relate to the impact of abandoning leased and other properties.

Financial Instruments Subject t

Financial Instruments Subject to Off-Balance Sheet Credit Risk	12 Months Ended
	Dec. 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 as of December 31, 2020 and 2019 were 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. In addition, most of our securities lending transactions are through a program with a clearing organization, which guarantees the return of cash to us. 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 $852 million and $719 million at December 31, 2020 and 2019, respectively. 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 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 Offset in the Consolidated Net Amounts Presented in the Consolidated Gross Amounts Not Offset in the Net Counterparty Collateral December 31, 2020 Assets Resale agreements (1) $ 14,904 $ — $ 14,904 $ — $ (14,904) (2) $ — Securities borrowed (3) 873 — 873 (673) (195) 5 Total $ 15,777 $ — $ 15,777 $ (673) $ (15,099) $ 5 Liabilities Securities loaned (4,5) $ 7,549 $ — $ 7,549 $ (673) $ (6,049) $ 827 Total $ 7,549 $ — $ 7,549 $ (673) $ (6,049) $ 827 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 consolidated balance sheets. (2) Actual collateral was greater than or equal to the value of the related assets. At December 31, 2020 and 2019, the fair value of collateral received in connection with resale agreements that are available to be repledged or sold was $15.2 billion and $9.2 billion, respectively. (3) Included in other assets in the consolidated balance sheets. (4) Included in accrued expenses and other liabilities in the 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 December 31, 2020 and 2019. (5) Securities loaned are predominantly comprised of equity securities held in client brokerage accounts with overnight and continuous remaining contractual maturities. Client trade settlement: Schwab is obligated to settle transactions with brokers and other financial institutions even if our clients fail to meet their obligations to us. Clients are required to complete their transactions on settlement date, generally two business days after the trade date. If clients do not fulfill their contractual obligations, we may incur losses. We have established procedures to reduce this risk by requiring deposits from clients in excess of amounts prescribed by regulatory requirements for certain types of trades, and therefore the potential to make payments under these client transactions is remote. Accordingly, no liability has been recognized for these transactions. 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: December 31, 2020 2019 Fair value of client securities available to be pledged $ 84,006 $ 26,685 Fair value of securities pledged for: Fulfillment of requirements with the Options Clearing Corporation (1) $ 10,222 $ 2,171 Fulfillment of client short sales 6,274 2,293 Securities lending to other broker-dealers 6,522 1,017 Total collateral pledged $ 23,018 $ 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 $183 million as of December 31, 2020 and $142 million as of December 31, 2019.

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	Fair Values of Assets and Liabilities For a description of the fair value hierarchy and Schwab’s fair value methodologies, including the use of independent third-party pricing services, see Note 2. The Company did not adjust prices received from the primary independent third-party pricing service at December 31, 2020 or 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: December 31, 2020 Level 1 Level 2 Level 3 Balance at Cash equivalents: Money market funds $ 11,159 $ — $ — $ 11,159 Total cash equivalents 11,159 — — 11,159 Investments segregated and on deposit for regulatory purposes: Certificates of deposit — 550 — 550 U.S. Government securities — 30,698 — 30,698 Total investments segregated and on deposit for regulatory purposes — 31,248 — 31,248 Available for sale securities: U.S. agency mortgage-backed securities — 290,353 — 290,353 Asset-backed securities — 18,898 — 18,898 Corporate debt securities — 12,796 — 12,796 U.S. Treasury securities — 10,656 — 10,656 U.S. state and municipal securities — 1,697 — 1,697 Foreign government agency securities — 1,413 — 1,413 Non-agency commercial mortgage-backed securities — 1,265 — 1,265 Certificates of deposit — 300 — 300 Other — 22 — 22 Total available for sale securities — 337,400 — 337,400 Other assets: Equity and bond mutual funds 361 — — 361 U.S. Government securities — 253 — 253 State and municipal debt obligations — 37 — 37 Equity, corporate debt, and other securities 7 29 — 36 Total other assets 368 319 — 687 Total $ 11,527 $ 368,967 $ — $ 380,494 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: December 31, 2020 Carrying Level 1 Level 2 Level 3 Balance at Assets Cash and cash equivalents $ 29,189 $ 29,189 $ — $ — $ 29,189 Cash and investments segregated and on deposit for regulatory purposes 19,143 4,212 14,931 — 19,143 Receivables from brokerage clients — net 64,436 — 64,436 — 64,436 Bank loans — net: First Mortgages 14,882 — 15,305 — 15,305 HELOCs 837 — 838 — 838 Pledged asset lines 7,916 — 7,916 — 7,916 Other 178 — 178 — 178 Total bank loans — net 23,813 — 24,237 — 24,237 Other assets 2,883 — 2,883 — 2,883 Liabilities Bank deposits $ 358,022 $ — $ 358,022 $ — $ 358,022 Payables to brokerage clients 104,201 — 104,201 — 104,201 Accrued expenses and other liabilities 8,263 — 8,263 — 8,263 Long-term debt 13,626 — 14,829 — 14,829 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 regulatory purposes 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	12 Months Ended
	Dec. 31, 2020
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity Effective October 6, 2020, the Company completed its acquisition of TD Ameritrade. In conjunction with the acquisition, the Company issued shares of CSC common stock and a new, nonvoting class of CSC common stock. Immediately prior to the acquisition, on October 6, 2020, the Company amended its certificate of incorporation to create the nonvoting class of common stock with 300 million shares authorized for issuance and to increase the number of authorized shares of capital stock by the same amount. Each share of nonvoting common stock has identical rights, including liquidation and dividend rights, except that holders of nonvoting common stock have no voting rights other than over matters that significantly and adversely affect the rights or preferences of the nonvoting common stock, or as required by applicable law. Holders of nonvoting common stock are restricted from transferring shares except for permitted inside or outside transfers, as defined in the certificate of incorporation. Shares of nonvoting stock transferred in a permitted outside transfer are automatically converted to shares of common stock. Pursuant to the Merger Agreement, CSC issued approximately 177 million shares of common stock and approximately 77 million shares of nonvoting common stock to TD Bank and its affiliates on October 6, 2020. Those shares of common stock and nonvoting common stock were issued in reliance upon an exemption from registration afforded by Section 4(a)(2) of the Securities Act. Following this issuance, TD Bank exchanged an aggregate of approximately 2 million shares of CSC common stock for an equal number of shares of CSC nonvoting common stock and held approximately 79 million shares of nonvoting common stock as of December 31, 2020. TD Bank and its affiliates are not permitted to own more than 9.9% of CSC common stock. This limit is interpreted in accordance with the applicable rules of the Federal Reserve and includes shares of CSC common stock deemed to be beneficially owned directly or indirectly by TD Bank and its affiliates. CSC did not issue any shares of common stock through external offerings during 2019 or 2018. On December 11, 2020, the Company issued and sold 2,500,000 depositary shares, each representing a 1/100th ownership interest in a share of 4.000% fixed-rate reset non-cumulative perpetual preferred stock, Series H, $.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 offering expenses. 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, $.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 offering expenses. On January 30, 2019, CSC publicly announced that its Board of Directors authorized a new 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 year ended December 31, 2020. During 2019, CSC repurchased 55 million shares of its common stock under this authorization for $2.2 billion. On October 25, 2018, CSC publicly announced that its Board of Directors terminated the previous two share repurchase authorizations and replaced them with an authorization to repurchase up to $1.0 billion of common stock. CSC repurchased 22 million shares for $1.0 billion in 2018, completing all repurchases under this authorization. CSC was authorized to issue 9,940,000 shares of preferred stock, $.01 par value, at December 31, 2020 and 2019. The following is a summary of CSC’s non-cumulative perpetual preferred stock outstanding as of such dates: Dividend Rate in Effect at December 31, 2020 Date at Which Dividend Rate Becomes Floating or Resets Floating Annual Rate of Three-Month LIBOR/ Term Five or Ten-Year Treasury plus (2,3) : Shares Issued and Outstanding (in thousands) at December 31, Liquidation Preference Per Share Carrying Value at December 31, Earliest Redemption Date 2020 (1) 2019 (1) 2020 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/Fixed-rate reset: 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 % Series G 25 — 100,000 2,470 — 04/30/20 5.375 % 06/01/25 06/01/25 4.971 % Series H 25 — 100,000 2,470 — 12/11/20 4.000 % 12/01/30 12/01/30 3.079 % Total preferred stock 1,811 1,761 $ 7,733 $ 2,793 (1) Represented by depositary shares, except for Series A. (2) The Series G dividend rate resets on each five five five (3) The Series H dividend rate resets on each ten ten ten N/A Not applicable. Dividends declared on the Company’s preferred stock are as follows: Year Ended December 31, 2020 2019 2018 Total Per Share Total Per Share Total Per Share Series A $ 28.0 $ 70.00 $ 28.0 $ 70.00 $ 28.0 $ 70.00 Series C 36.0 60.00 36.0 60.00 36.0 60.00 Series D 44.6 59.52 44.6 59.52 44.6 59.52 Series E 27.8 4,625.00 27.8 4,625.00 27.8 4,625.00 Series F 25.0 5,000.00 25.0 5,000.00 27.2 5,430.56 Series G (1) 78.8 3,150.35 N/A N/A N/A N/A Series H (2) N/A N/A N/A N/A N/A N/A Total $ 240.2 $ 161.4 $ 163.6 (1) Series G Preferred Stock was issued on April 30, 2020. Dividends are paid quarterly, and the first dividend was paid on September 1, 2020. (2) Series H Preferred Stock was issued on December 11, 2020. Dividends are paid quarterly beginning on March 1, 2021. N/A Not applicable. Dividends on CSC’s preferred stock are not cumulative and will only be paid on a series of preferred stock for a dividend period if declared by CSC’s Board of Directors. Under the terms of each series of preferred stock, CSC’s ability to pay dividends on, make distributions with respect to, or to repurchase, redeem or acquire its common stock or any preferred stock ranking on parity with or junior to the series of preferred stock, is subject to restrictions in the event that CSC does not declare and either pay or set aside a sum sufficient for payment of dividends on the series of preferred stock for the immediately preceding dividend period. Dividends on fixed-rate preferred stock, as well as Series G and H, are payable quarterly. Dividends on fixed-to-floating-rate preferred stock are payable semi-annually while at a fixed rate and will become payable quarterly after converting to a floating rate. Redemption Rights Each series of CSC’s preferred stock, except for Series G, may be redeemed at CSC’s option on any dividend payment date on or after the earliest redemption date for that series. Series G preferred stock may be redeemed at CSC’s option on any reset date on or after the earliest redemption date for the series. All outstanding preferred stock series may also be redeemed following a “capital treatment event,” as described in the terms of each series set forth in the relevant certificate of designations. Any redemption of CSC’s preferred stock is subject to approval from the Federal Reserve.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income AOCI represents cumulative gains and losses that are not reflected in earnings. The components of other comprehensive income (loss) are as follows: Year Ended December 31, 2020 2019 2018 Before Tax Net of Before Tax Net of Before Tax Net of Change in net unrealized gain (loss) on available for sale Net unrealized gain (loss) $ 6,961 $ (1,658) $ 5,303 $ 430 $ (102) $ 328 $ (123) $ 30 $ (93) Other reclassifications included in other revenue (4) 1 (3) (6) 1 (5) — — — Change in net unrealized gain (loss) on held to maturity Amortization of amounts previously recorded upon transfer to — — — 36 (9) 27 35 (8) 27 Other 8 (2) 6 (14) 4 (10) (1) — (1) Other comprehensive income (loss) $ 6,965 $ (1,659) $ 5,306 $ 446 $ (106) $ 340 $ (89) $ 22 $ (67) AOCI balances are as follows: Total AOCI Balance at December 31, 2017 $ (152) Adoption of accounting standards (1) (33) Available for sale securities: Net unrealized gain (loss) (93) Held to maturity securities: Amortization of amounts previously recorded upon transfer to held to maturity from available for sale 27 Other (1) Balance at December 31, 2018 $ (252) Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 309 Net unrealized gain on securities transferred to available for sale from held to maturity (2) 19 Other reclassifications included in other revenue (5) Held to maturity securities: Amortization of amounts previously recorded upon transfer to held to maturity from available for sale 27 Other (10) Balance at December 31, 2019 $ 88 Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 4,246 Net unrealized gain on securities transferred to available for sale from held to maturity (3) 1,057 Other reclassifications included in other revenue (3) Other 6 Balance at December 31, 2020 $ 5,394 (1) As part of the adoption of ASU 2018-02, “ Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ”, we elected to reclassify the income tax effects of the Tax Cuts and Jobs Act from items in AOCI into retained earnings as of January 1, 2018. (2) In the first quarter of 2019, the Company made an election to transfer a portion of its HTM securities to AFS as part of the adoption of ASU 2017-12. The transfer resulted in a net of tax increase to AOCI of $19 million. See Note 6 for additional discussion on the 2019 transfer of HTM securities to AFS. (3) 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 6 for additional discussion on the 2020 transfer of HTM securities to AFS.

Employee Incentive, Retirement,

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans	Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans Schwab’s share-based incentive plans provide for granting options and restricted stock units to employees and directors. In addition, we offer retirement and employee stock purchase plans to eligible employees and sponsor deferred compensation plans for eligible officers and non-employee directors. Acquisition of TD Ameritrade Upon the completion of the TD Ameritrade acquisition on October 6, 2020, TD Ameritrade’s equity awards, whether vested or unvested, were assumed by the Company and converted into equity awards based on CSC common stock taking into account the defined exchange ratio of 1.0837. Otherwise, these share-based awards are subject to the same terms and conditions that were applicable immediately before the merger, except for performance-based restricted stock units which were converted into time-based restricted stock units. The fair value of the stock options assumed by the Company was determined using an option pricing model. The portion of the fair value of the replacement awards related to services provided prior to the acquisition was $94 million and was accounted for as consideration transferred. The remaining portion of the fair value of $73 million is associated with future services and had a remaining weighted-average service period of 1.9 years on the acquisition date. A change in the actual or estimated forfeiture rate from the amount originally or subsequently estimated will result in an adjustment to compensation expense based on the full acquisition-date fair value of awards not expected to vest, regardless of whether those awards were treated as consideration transferred or stock-based compensation for future services. A summary of share-based compensation expense and related income tax benefit is as follows: Year Ended December 31, 2020 2019 2018 Stock option expense $ 36 $ 51 $ 51 Restricted stock unit expense (1) 156 120 136 Employee stock purchase plan expense 12 12 10 Total share-based compensation expense $ 204 $ 183 $ 197 Income tax benefit on share-based compensation expense (2) $ (49) $ (44) $ (47) (1) Restricted stock unit expense in 2018 includes $36 million related to special stock awards issued to non-officer employees. (2) Excludes income tax benefits from stock options exercised and restricted stock units vested of $14 million, $23 million, and $46 million in 2020, 2019, and 2018, respectively. The Company issues shares for stock options and restricted stock units from treasury stock. At December 31, 2020, the Company was authorized to grant up to 62 million common shares under its existing stock incentive plans. Additionally, at December 31, 2020, the Company had 32 million shares reserved for future issuance under its employee stock purchase plan. As of December 31, 2020, there was $289 million of total unrecognized compensation cost related to outstanding stock options and restricted stock units, which is expected to be recognized through 2024 with a remaining weighted-average service period of 0.9 years for stock options, 2.2 years for restricted stock units, and 0.4 years for performance-based stock units. Stock Option Plan Options are granted for the purchase of shares of common stock at an exercise price not less than market value on the date of grant, and expire ten years from the date of grant. Options generally vest annually over a one four Stock option activity is summarized below: Number Weighted- Average Exercise Price Weighted- Average Remaining Contractual Aggregate Intrinsic Outstanding at December 31, 2019 26 $ 32.10 5.75 $ 403 Converted TD Ameritrade stock options 1 25.81 Granted 1 41.45 Exercised (4) 23.10 Forfeited (1) — 44.04 Expired (1) — 43.83 Outstanding at December 31, 2020 24 $ 33.67 5.36 $ 452 Vested and expected to vest at December 31, 2020 24 $ 33.67 5.36 $ 452 Vested and exercisable at December 31, 2020 19 $ 30.51 4.64 $ 414 (1) Number of options was less than 500 thousand. The aggregate intrinsic value in the table above represents the difference between CSC’s closing stock price and the exercise price of each in-the-money option on the last trading day of the period presented. Information on stock options granted and exercised is presented below: Year Ended December 31, 2020 2019 2018 Weighted-average fair value of options granted per share $ 11.56 $ 11.97 $ 14.16 Cash received from options exercised 79 118 125 Tax benefit realized on options exercised 11 17 35 Aggregate intrinsic value of options exercised 71 108 189 We use an option pricing model to estimate the fair value of options granted. The model takes into account the contractual term of the stock option, expected volatility, dividend yield, and the risk-free interest rate. Expected volatility is based on the implied volatility of publicly-traded options on CSC’s stock. Dividend yield is based on the average historical CSC dividend yield. The risk-free interest rate is based on the yield of a U.S. Treasury zero-coupon issue with a remaining term similar to the contractual term of the option. We use historical option exercise data, which includes employee termination data, to estimate the probability of future option exercises. The assumptions used to value the options granted during the years presented and their expected lives were as follows: Year Ended December 31, 2020 2019 2018 Weighted-average expected dividend yield 2.08 % 1.85 % 1.42 % Weighted-average expected volatility 36 % 30 % 33 % Weighted-average risk-free interest rate 1.0 % 2.5 % 3.0 % Expected life (in years) 4.3 - 5.9 4.2 - 5.9 4.0 - 5.2 Restricted Stock Units Restricted stock units are awards that entitle the holder to receive shares of CSC’s common stock following a vesting period. Restricted stock units are restricted from transfer or sale and generally vest annually over a one four The Company’s restricted stock units activity is summarized below: Number Weighted- Average Grant Date Fair Value Outstanding at December 31, 2019 8 $ 42.93 Converted TD Ameritrade restricted stock units 4 36.94 Granted 3 39.26 Vested (5) 39.78 Forfeited (1) — 41.13 Outstanding at December 31, 2020 10 $ 40.85 (1) Number of units was less than 500 thousand. Retirement and Deferred Compensation Plans Employees can participate in Schwab’s qualified retirement plan, the SchwabPlan Retirement Savings and Investment Plan. The Company may match certain employee contributions or make additional contributions to this plan at its discretion. The Company’s total expense was $136 million, $118 million, and $105 million in 2020, 2019, and 2018, respectively. Schwab’s deferred compensation plan for officers permits participants to defer the receipt of certain cash compensation. The deferred compensation plan for non-employee directors permits participants to defer receipt of all or a portion of their director fees and to receive either a grant of stock options, or upon ceasing service as a director, the number of shares of CSC’s common stock that would have resulted from investing the deferred fee amount into CSC’s common stock. The deferred compensation liability was $176 million and $164 million at December 31, 2020 and 2019, respectively. Effective upon the completion of the TD Ameritrade acquisition on October 6, 2020, TD Ameritrade’s 401(k) and deferred profit-sharing plans were terminated and TD Ameritrade employees were eligible to participate in the SchwabPlan Retirement Savings and Investment Plan. As of December 31, 2020, there were no TD Ameritrade participants in Schwab’s deferred compensation plan. FC Career Achievement Plan The FC career achievement plan is a noncontributory, unfunded, nonqualified plan for eligible FCs. An FC is eligible for earned cash payments after retirement contingent upon meeting certain performance levels, tenure, age, and client transitioning requirements. Allocations to the plan are calculated annually based on performance levels achieved and eligible compensation and are subject to general creditors of the Company. Full vesting occurs when an FC reaches 60 years of age and has at least ten years of service with the Company. The following table presents the changes in projected benefit obligation: December 31, 2020 2019 Projected benefit obligation at beginning of year $ 83 $ 56 Benefit cost (1) 17 13 Actuarial (gain)/loss (2) (8) 14 Projected benefit obligation at end of year (3) $ 92 $ 83 (1) Includes service cost and interest cost, which are recognized in compensation and benefits expense and other expense, respectively, in the consolidated statements of income. (2) Actuarial (gain)/loss is reflected in the consolidated statements of comprehensive income and is included in AOCI on the consolidated balance sheets. (3) This amount is recognized as a liability in accrued expenses and other liabilities on the consolidated balance sheets.

Taxes on Income

Taxes on Income	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Taxes on Income	Taxes on Income The components of taxes on income are as follows: Year Ended December 31, 2020 2019 2018 Current: Federal $ 967 $ 958 $ 847 State 172 184 159 Total current 1,139 1,142 1,006 Deferred: Federal (113) 3 42 State (25) (1) 7 Total deferred (138) 2 49 Taxes on income $ 1,001 $ 1,144 $ 1,055 The temporary differences that created deferred tax assets and liabilities are detailed below: December 31, 2020 2019 Deferred tax assets: Employee compensation, severance, and benefits $ 271 $ 154 Operating lease liabilities 249 159 Reserves and allowances 70 14 Debt fair value remeasurement 67 — State and local taxes 37 22 Net operating loss carryforwards 8 6 Total deferred tax assets 702 355 Valuation allowance (8) (3) Deferred tax assets — net of valuation allowance 694 352 Deferred tax liabilities: Amortization of acquired intangible assets (1,954) (51) Net unrealized gain on available for sale securities (1,686) (28) Operating lease ROU assets (233) (146) Capitalized internal-use software development costs (101) (97) Capitalized contract costs (72) (68) Equipment, office facilities, and property (69) (62) Other (41) (10) Total deferred tax liabilities (4,156) (462) Deferred tax asset/(liability) — net (1) $ (3,462) $ (110) (1) Amounts are included in accrued expenses and other liabilities on the consolidated balance sheets at December 31, 2020 and 2019. A reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows: Year Ended December 31, 2020 2019 2018 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal tax benefit 3.2 3.2 3.0 Equity compensation benefit (0.3) (0.5) (1.0) Other (0.6) (0.1) 0.1 Effective income tax rate 23.3 % 23.6 % 23.1 % A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: December 31, 2020 2019 Balance at beginning of year $ 101 $ 112 Additions for tax positions related to the current year 15 3 Additions for tax positions related to prior years 3 4 Additions for current year acquisitions 200 — Reductions for tax positions related to prior years (7) (2) Reductions due to lapse of statute of limitations (24) (14) Reductions for settlements with tax authorities (40) (2) Balance at end of year $ 248 $ 101 Unrecognized tax benefits totaled $248 million and $101 million as of December 31, 2020 and 2019, respectively, $202 million and $97 million of which if recognized, would affect the annual effective tax rate.

Regulatory Requirements

Regulatory Requirements	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Regulatory Requirements	Regulatory Requirements CSC is a savings and loan holding company and is subject to examination, supervision, and regulation by the Federal Reserve. During 2020, CSB, CSC’s primary depository institution subsidiary, converted to a Texas-chartered state savings bank and became a member of the Federal Reserve system. CSB is subject to examination, supervision, and regulation by the Federal Reserve, the TDSML, the FDIC as its deposit insurer, and the CFPB. CSC is required to serve as a source of strength for CSB. CSB is subject to various requirements and restrictions under federal and state laws, including regulatory capital requirements and requirements that restrict and govern the terms of affiliate transactions, such as extensions of credit to, or asset purchases from CSC or its other subsidiaries by CSB. In addition, CSB is required to provide notice to and may be required to obtain approval of the Federal Reserve and the TDSML to declare dividends to CSC. The federal banking agencies have broad powers to enforce these regulations, including the power to terminate deposit insurance, impose substantial fines and other civil and criminal penalties, and appoint a conservator or receiver. Under the prompt corrective action provisions of the Federal Deposit Insurance Act, CSB could be subject to restrictive actions if it were to fall within one of the lowest three of five capital categories. CSC and CSB are required to maintain minimum capital levels as specified in federal banking regulations. Failure to meet the minimum levels could result in certain mandatory, and possibly additional discretionary actions by the regulators that, if undertaken, could have a direct material effect on CSC and CSB. At December 31, 2020, both 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 December 31, 2020 Amount Ratio Amount Ratio Amount Ratio (2) CSC Common Equity Tier 1 Risk-Based Capital $ 22,916 18.5 % N/A $ 5,575 4.5 % Tier 1 Risk-Based Capital 30,649 24.7 % N/A 7,433 6.0 % Total Risk-Based Capital 30,688 24.8 % N/A 9,910 8.0 % Tier 1 Leverage 30,649 6.3 % N/A 19,396 4.0 % Supplementary Leverage Ratio 30,649 6.2 % N/A 14,744 3.0 % CSB Common Equity Tier 1 Risk-Based Capital $ 17,526 19.2 % $ 5,919 6.5 % $ 4,098 4.5 % Tier 1 Risk-Based Capital 17,526 19.2 % 7,285 8.0 % 5,464 6.0 % Total Risk-Based Capital 17,558 19.3 % 9,106 10.0 % 7,285 8.0 % Tier 1 Leverage 17,526 5.5 % 15,979 5.0 % 12,783 4.0 % Supplementary Leverage Ratio 17,526 5.4 % N/A N/A 9,763 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 December 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 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 December 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 December 31, 2020, CSB is considered well capitalized (the highest category) under its respective regulatory capital rules. There are no conditions or events since December 31, 2020 that management believes have changed CSB’s capital category. Effective March 26, 2020, the Federal Reserve eliminated a requirement that depository institutions maintain reserve balances at the Federal Reserve based on deposits considered to be transaction accounts. CSB’s average required reserve pursuant to this regulation was $1.5 billion in 2019. In 2018, the Company established Charles Schwab Trust Bank (Trust Bank) as a Nevada state-chartered savings bank to provide certain trust and custody services. At December 31, 2020, the balance sheets of CSPB and Trust Bank consisted primarily of investment securities, and the entities held total assets of $31.6 billion and $12.5 billion, respectively. Based on their regulatory capital ratios, at December 31, 2020, CSPB and Trust Bank are considered well capitalized under their respective regulatory capital rules. During 2020, CS&Co registered as an FCM with the CFTC, and subsequently, Charles Schwab Futures, Inc., a wholly-owned subsidiary of CSC, transferred its futures business and all of its assets and liabilities to CS&Co. This transfer was accounted for as a common control transaction and did not have an impact on the consolidated financial statements. As a securities broker-dealer, CS&Co is subject to the SEC’s Uniform Net Capital Rule, and as an FCM, CS&Co is also subject to net capital requirements under CFTC Regulation 1.17 under the Commodity Exchange Act. CS&Co computes net capital under the alternative method permitted by the Uniform Net Capital Rule, which requires the maintenance of minimum net capital, as defined, of the greater of 2% of aggregate debit balances arising from client transactions or a minimum dollar requirement, which is based on the type of business conducted by CS&Co. CFTC Regulation 1.17 requires maintenance of adjusted net capital equal to or in excess of the greater of (1) $1.0 million; (2) its futures risk-based capital requirement, equal to 8% of the total risk margin requirement for all futures positions carried by the FCM in client and nonclient accounts; (3) the amount of adjusted net capital required by a registered futures association of which it is a member; or (4) for securities brokers and dealers, the amount of net capital required by the Uniform Net Capital Rule. Certain subsidiaries of TDA Holding are subject to regulatory capital requirements, including TDAC and TD Ameritrade, Inc. TDAC and TD Ameritrade, Inc. are subject to the SEC’s Uniform Net Capital Rule and compute net capital under the alternative method. TDAC is required to maintain net capital of the greater of $1.5 million, which is based on the type of business conducted by the broker-dealer, or 2% of aggregate debit balances arising from client transactions. TD Ameritrade, Inc. is required to maintain minimum net capital, as defined, as the greater of 2% of aggregate debit balances arising from client transactions or a minimum dollar requirement of $250,000, which is based on the type of business conducted by the broker-dealer. Under the alternative method, a broker-dealer may not repay subordinated borrowings, pay cash dividends, or make any unsecured advances or loans if such payment would result in a net capital amount of less than 5% of aggregate debit balances or less than 120% of its minimum dollar requirement. Net capital and net capital requirements for CS&Co, TDAC, and TD Ameritrade, Inc., are as follows: December 31, 2020 2019 CS&Co Net capital $ 3,117 $ 3,700 Minimum dollar requirement 1.000 0.250 2% of aggregate debit balances 616 446 Net capital in excess of required net capital $ 2,501 $ 3,254 TDAC Net capital $ 4,040 N/A Minimum dollar requirement 1.500 N/A 2% of aggregate debit balances 748 N/A Net capital in excess of required net capital $ 3,292 N/A TD Ameritrade, Inc. Net capital $ 350 N/A Minimum dollar requirement 0.250 N/A 2% of aggregate debit balances — N/A Net capital in excess of required net capital $ 350 N/A N/A Not applicable. Net capital amounts and requirements are not presented for TDAC and TD Ameritrade, Inc. prior to the acquisition of TD Ameritrade. Pursuant to the SEC’s Customer Protection Rule and other applicable regulations, Schwab had cash and investments segregated for the exclusive benefit of clients at December 31, 2020. The SEC’s 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, whereas cash and investments required to be segregated and on deposit for regulatory purposes at December 31, 2020 for CS&Co totaled $39.2 billion and for TDAC totaled $14.5 billion. As of January 5, 2021, CS&Co had deposited $4.8 billion of cash and qualified securities into its segregated reserve

Segment Information

Segment Information	12 Months Ended
	Dec. 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. The Company integrated its business and asset acquisitions during 2020 into its two existing reportable segments. Revenues and expenses from our acquisition of USAA-IMCO are allocated to Investor Services only; revenues and expenses from TD Ameritrade and our other 2020 acquisitions are attributed to Investor Services and Advisor Services based on which segment services the client. See Note 3 for more information regarding business acquisitions. The accounting policies of the segments are the same as those described in Note 2. For the computation of its segment information, Schwab utilizes an activity-based costing model to allocate traditional income statement line item expenses (e.g., compensation and benefits, depreciation and amortization, and professional services) to the business activities driving segment expenses (e.g., client service, opening new accounts, or business development) and a funds transfer pricing methodology to allocate certain revenues. 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 Year Ended December 31, 2020 2019 2018 2020 2019 2018 2020 2019 2018 Net Revenues Net interest revenue $ 4,391 $ 4,685 $ 4,341 $ 1,722 $ 1,831 $ 1,482 $ 6,113 $ 6,516 $ 5,823 Asset management and administration fees 2,544 2,289 2,260 931 922 969 3,475 3,211 3,229 Trading revenue (1) 1,156 503 604 260 249 298 1,416 752 902 Bank deposit account fees 255 — — 100 — — 355 — — Other (1) 262 146 116 70 96 62 332 242 178 Total net revenues 8,608 7,623 7,321 3,083 3,098 2,811 11,691 10,721 10,132 Expenses Excluding Interest 5,529 4,284 4,145 1,862 1,589 1,425 7,391 5,873 5,570 Income before taxes on income $ 3,079 $ 3,339 $ 3,176 $ 1,221 $ 1,509 $ 1,386 $ 4,300 $ 4,848 $ 4,562 Capital expenditures $ 535 $ 507 $ 390 $ 206 $ 246 $ 186 $ 741 $ 753 $ 576 Depreciation and amortization (2) $ 288 $ 216 $ 158 $ 126 $ 106 $ 119 $ 414 $ 322 $ 277 Amortization of acquired intangible assets (2) $ 149 $ 26 $ 28 $ 41 $ 1 $ 1 $ 190 $ 27 $ 29 (1) Beginning in 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change. (2) Beginning in 2020, amortization of acquired intangible assets was reclassified from depreciation and amortization. Prior periods have been reclassified to reflect this change.

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share EPS is computed using the two-class method. Preferred stock dividends, and undistributed earnings and dividends allocated to participating securities are subtracted from net income in determining net income available to common stockholders. Basic EPS is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted EPS is calculated similar to basic EPS except that the numerator and denominator are adjusted as necessary for any effects of dilutive potential common shares, which include, if dilutive, outstanding stock options and non-vested restricted stock units. For the year ended December 31, 2020, the Company had voting and nonvoting common stock outstanding. Since the rights of the voting and nonvoting common stock are identical, except with respect to voting, the net income of the Company has been allocated on a proportionate basis to the two classes. Diluted earnings per share is calculated using the treasury stock method for outstanding stock options and non-vested restricted stock units and the if-converted method for nonvoting common stock. The if-converted method assumes conversion of all nonvoting common stock to common stock. EPS under the basic and diluted computations for both common stock and nonvoting common stock are as follows: Year Ended December 31, 2020 2019 2018 Common Stock Common Stock – Nonvoting (1) Common Stock Common Stock – Nonvoting (1) Common Stock Common Stock – Nonvoting (1) Basic earnings per share: Numerator Net income $ 3,255 $ 44 $ 3,704 N/A $ 3,507 N/A Preferred stock dividends and other (2) (253) (3) (178) N/A (178) N/A Net income available to common stockholders $ 3,002 $ 41 $ 3,526 N/A $ 3,329 N/A Denominator Weighted-average common shares outstanding — 1,410 19 1,311 N/A 1,348 N/A Basic earnings per share $ 2.13 $ 2.13 $ 2.69 N/A $ 2.47 N/A Diluted earnings per share: Numerator Net income available to common stockholders $ 3,002 $ 41 $ 3,526 N/A $ 3,329 N/A Reallocation of net income available to 41 — N/A N/A N/A N/A Allocation of net income available to common $ 3,043 $ 41 $ 3,526 N/A $ 3,329 N/A Denominator Weighted-average common shares outstanding — 1,410 19 1,311 N/A 1,348 N/A Conversion of nonvoting shares to voting shares 19 — N/A N/A N/A N/A Common stock equivalent shares related to 6 — 9 N/A 13 N/A Weighted-average common shares outstanding — diluted (3) 1,435 19 1,320 N/A 1,361 N/A Diluted earnings per share $ 2.12 $ 2.12 $ 2.67 N/A $ 2.45 N/A (1) Nonvoting common stock was issued on October 6, 2020 in conjunction with the acquisition of TD Ameritrade. As such, nonvoting common stock is not applicable for the basic and diluted EPS computations in 2019 and 2018. (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 22 million, 21 million, and 18 million in 2020, 2019, and 2018, respectively. N/A Not applicable.

The Charles Schwab Corporation

The Charles Schwab Corporation - Parent Company Only Financial Statements	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
The Charles Schwab Corporation - Parent Company Only Financial Statements	The Charles Schwab Corporation – Parent Company Only Financial Statements Condensed Statements of Income Year Ended December 31, 2020 2019 2018 Interest revenue $ 38 $ 119 $ 88 Interest expense (273) (248) (184) Net interest expense (235) (129) (96) Trading revenue 1 — — Other revenue (1) (1) 1 Expenses Excluding Interest: Professional services (68) (24) (6) Other expenses excluding interest (85) (83) (79) Loss before income tax benefit and equity in net income of subsidiaries (388) (237) (180) Income tax benefit/(expense) 45 (9) 20 Loss before equity in net income of subsidiaries (343) (246) (160) Equity in net income of subsidiaries: Equity in undistributed net income/(distributions in excess of net income) of subsidiaries 2,476 (1,198) 2,590 Dividends from bank subsidiaries — 4,915 750 Dividends from non-bank subsidiaries 1,166 233 327 Net Income 3,299 3,704 3,507 Preferred stock dividends and other (1) 256 178 178 Net Income Available to Common Stockholders $ 3,043 $ 3,526 $ 3,329 (1) Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units. Condensed Balance Sheets December 31, 2020 2019 Assets Cash and cash equivalents $ 4,654 $ 2,839 Receivables from subsidiaries 1,260 1,085 Available for sale securities 4,982 1,743 Held to maturity securities — 224 Investment in non-bank subsidiaries 29,550 7,090 Investment in bank subsidiaries 25,548 16,325 Other assets 371 304 Total assets $ 66,365 $ 29,610 Liabilities and Stockholders’ Equity Accrued expenses and other liabilities $ 458 $ 430 Payables to subsidiaries 34 5 Long-term debt 9,813 7,430 Total liabilities 10,305 7,865 Stockholders’ equity 56,060 21,745 Total liabilities and stockholders’ equity $ 66,365 $ 29,610 Condensed Statements of Cash Flows Year Ended December 31, 2020 2019 2018 Cash Flows from Operating Activities Net income $ 3,299 $ 3,704 $ 3,507 Adjustments to reconcile net income to net cash provided by (used for) operating activities: Dividends in excess of (equity in undistributed) earnings of subsidiaries (2,476) 1,198 (2,590) Other 41 9 13 Net change in: Other assets (65) 57 (5) Accrued expenses and other liabilities 34 34 28 Net cash provided by (used for) operating activities 833 5,002 953 Cash Flows from Investing Activities Due from (to) subsidiaries — net 46 (122) 408 Increase in investments in subsidiaries (2,172) (1,783) (1,188) Repayments (Advances) of subordinated loan to CS&Co — 185 (185) Purchases of available for sale securities (5,397) (1,141) (1,751) Proceeds from sales of available for sale securities 2 181 — Principal payments on available for sale securities 2,395 994 573 Other investing activities — — (5) Net cash provided by (used for) investing activities (5,126) (1,686) (2,148) Cash Flows from Financing Activities Issuance of long-term debt 3,070 593 3,024 Repayment of long-term debt (700) — (900) Repurchases of common stock — (2,220) (1,000) Net proceeds from preferred stock offerings 4,940 — — Dividends paid (1,280) (1,060) (787) Proceeds from stock options exercised and other 79 118 125 Other financing activities (1) — — Net cash provided by (used for) financing activities 6,108 (2,569) 462 Increase (Decrease) in Cash and Cash Equivalents 1,815 747 (733) Cash and Cash Equivalents at Beginning of Year 2,839 2,092 2,825 Cash and Cash Equivalents at End of Year $ 4,654 $ 2,839 $ 2,092

Quarterly Financial Information

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	Quarterly Financial Information (Unaudited) Fourth Quarter (1) Third Second First Year Ended December 31, 2020: Total net revenues $ 4,176 $ 2,448 $ 2,450 $ 2,617 Total expenses excluding interest $ 2,700 $ 1,559 $ 1,562 $ 1,570 Net income $ 1,135 $ 698 $ 671 $ 795 Net income available to common stockholders $ 1,050 $ 615 $ 621 $ 757 Weighted-average common shares outstanding — Basic 1,848 1,289 1,288 1,287 Weighted-average common shares outstanding — Diluted 1,855 1,294 1,294 1,294 Earnings per common share — Basic (2) $ .57 $ .48 $ .48 $ .59 Earnings per common share — Diluted (2) $ .57 $ .48 $ .48 $ .58 Dividends declared per common share $ .18 $ .18 $ .18 $ .18 Year Ended December 31, 2019: Total net revenues $ 2,606 $ 2,711 $ 2,681 $ 2,723 Total expenses excluding interest $ 1,494 $ 1,475 $ 1,445 $ 1,459 Net income $ 852 $ 951 $ 937 $ 964 Net income available to common stockholders $ 801 $ 913 $ 887 $ 925 Weighted-average common shares outstanding — Basic 1,284 1,300 1,328 1,333 Weighted-average common shares outstanding — Diluted 1,293 1,308 1,337 1,344 Earnings per common share — Basic $ .62 $ .70 $ .67 $ .69 Earnings per common share — Diluted $ .62 $ .70 $ .66 $ .69 Dividends declared per common share $ .17 $ .17 $ .17 $ .17 (1) The fourth quarter of 2020 includes TD Ameritrade in our consolidated results of operations and financial condition starting on the acquisition date, October 6, 2020. Refer to Item 8 – Note 3 for further information regarding the acquisition of TD Ameritrade. (2) For the fourth quarter of 2020, the Company had voting and nonvoting common stock outstanding. As the participation rights, including dividend and liquidation rights, are identical between the voting and nonvoting stock classes, basic and diluted earnings per share are the same for each class. See Notes 19 and 25 for additional information.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Accounting	The accompanying consolidated financial statements include CSC and its subsidiaries. Intercompany balances and transactions have been eliminated. These consolidated financial statements have been prepared in conformity with 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 consolidated financial statements. While management makes its best judgment, actual amounts or results could differ from those estimates. Certain estimates relate to taxes on income, legal and regulatory reserves, and fair values of assets acquired and liabilities assumed, as well as goodwill recognized, in business combinations. Effective October 6, 2020, the Company completed its acquisition of TD Ameritrade Holding Corporation and its consolidated subsidiaries (collectively referred to as “TD Ameritrade” or “TDA”). TD Ameritrade provides securities brokerage services, including trade execution, clearing services, and margin lending, through its broker-dealer subsidiaries; and futures and foreign exchange trade execution services through its futures commission merchant (FCM) and forex dealer member (FDM) subsidiary. Our consolidated financial statements include the results of operations and financial condition of TD Ameritrade beginning on October 6, 2020. See Note 3 for additional information on our acquisition of TD Ameritrade.
Reclassifications	Reclassifications: Certain prior year amounts have been reclassified to conform to the current year presentation. Beginning in 2020, order flow revenue was reclassified from other revenue to trading revenue in the consolidated statements of income. Beginning in 2020, amortization of acquired intangible assets was reclassified from depreciation and amortization and presented separately in the consolidated statements of income. Beginning in 2020, acquired intangible assets – net was reclassified from other assets and presented separately in the consolidated balance sheets. Prior period amounts have been reclassified to reflect these changes. Corresponding presentation changes have been made to the consolidated statements of cash flows and related notes.
Revenue recognition	Revenue recognition Net interest revenue Net interest revenue is not within the scope of Accounting Standards Codification (ASC) 606, Revenue From Contracts With Customers (ASC 606), because it is generated from financial instruments covered by various other areas of GAAP. Net interest revenue is the difference between interest generated on interest earning assets and interest paid on funding sources. Our primary interest earning assets include cash and cash equivalents; segregated cash and investments; margin loans; investment securities; and bank loans. Fees earned and incurred on securities borrowing and lending activities, which are conducted by the Company’s broker-dealer subsidiaries on assets held in client brokerage accounts, are also included in interest revenue and expense. Asset management and administration fees The majority of asset management and administration fees are generated through our proprietary and third-party mutual fund and ETF offerings, as well as fee-based advisory solutions. Mutual fund and ETF service fees are charged for investment management, shareholder, and administration services provided to Schwab Funds ® and Schwab ETFs ™ , as well as recordkeeping, shareholder, and administration services provided to third-party funds. Advice solutions fees are charged for brokerage and asset management services provided to advice solutions clients. Both mutual fund and ETF service fees and advice solutions fees are earned and recognized over time. Fees are generally based on a percentage of the daily value of assets under management and are collected on a monthly or quarterly basis. Trading revenue Trading revenue is primarily generated through commissions earned for executing trades for clients in individual equities, options, fixed income securities, and certain third-party mutual funds and ETFs, as well as order flow revenue. In late 2019, Schwab eliminated online trading commissions for U.S. and Canadian-listed stocks and ETFs, as well as the base charge on options. Commissions revenue is earned when the trades are executed and collected when the trades are settled. Order flow revenue is comprised of rebate payments received from execution venues to which our broker-dealer subsidiaries send equity and option orders. Order flow revenue is recognized when the trades are executed and is collected on a monthly or quarterly basis. Bank deposit account fees Bank deposit account fees consist of revenues resulting from sweep programs offered to certain clients whereby uninvested client cash is swept off-balance sheet to FDIC-insured (up to specified limits) accounts at the TD Depository Institutions and other third-party depository institutions. The Company provides marketing, recordkeeping, and support services related to these sweep programs to the TD Depository Institutions and other third-party depository institutions in exchange for bank deposit account fees. These revenues are based on floating and fixed yields as elected by the Company subject to certain requirements, less interest paid to clients and other applicable fees. Bank deposit account fees are earned and recognized over time and collected on a monthly basis. Other revenue Other revenue includes exchange processing fees, certain service fees, software fees, and non-recurring gains. Generally, the most significant portion of other revenue is exchange processing fees, which are comprised of fees the Company’s broker-dealer subsidiaries charge clients to offset the exchange processing fees imposed on us by third-parties. Exchange processing fees are earned and collected when the trade is executed and are recognized gross of amounts remitted to the third-parties, which are included in other expenses. Unsatisfied performance obligations
Cash and cash equivalents	Cash and cash equivalents Schwab considers all highly liquid investments that mature in three months or less from the time of acquisition and that are not segregated and on deposit for regulatory purposes to be cash and cash equivalents. Cash and cash equivalents include money market funds, deposits with banks, certificates of deposit, commercial paper, and U.S. Treasury securities. Cash and cash equivalents also include balances that our banking subsidiaries maintain at the Federal Reserve.
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. Under these resale agreements, the Company obtains collateral with a market value equal to or in excess of the principal amount loaned and the interest accrued. 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 and unrealized gains and losses are included in earnings. Schwab applies the practical expedient based on collateral maintenance provisions under 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 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. Other securities owned at fair value Other securities owned are included in other assets on the consolidated balance sheets and recorded at fair value based on quoted market prices or other observable market data. Unrealized gains and losses are included in earnings. 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 using the specific-identification method and are included in other revenue. Interest income is recognized using the effective interest method based on the contractual terms of the security. Where applicable, prepayments are accounted for as they occur (i.e., prepayments are not estimated). An AFS investment security is impaired if the fair value of the security is less than its amortized cost basis. Management evaluates AFS 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 investment security (or a portion of the impairment) is related to credit losses, an allowance for credit losses is 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 are 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 the 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 investment securities for the purposes of identifying and measuring impairment of the securities. AFS 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 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 consolidated balance sheets. The market value of securities borrowed and loaned is monitored and collateral is adjusted 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 loan losses Bank loans held for investments are recorded at amortized cost, which is comprised of the contractual principal amounts adjusted for 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 three portfolio segments: residential real estate, PALs, and other loans. We use these segments when developing and documenting our methodology for determining the allowance for credit losses. The residential real estate portfolio segment is divided into two classes of financing receivables for purposes of monitoring and assessing credit risk: First Mortgages and HELOCs. 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 the residential real estate portfolio segment utilizes statistical models that estimate prepayments, defaults, and expected losses for this portfolio segment based on predicted behavior of individual loans within the segment. The methodology also evaluates concentrations in the classes of financing receivables, including loan products within those classes, 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 the 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 forecasted conditions. Loss severity (i.e., loss given default) estimates are based on our historical loss experience and market trends, both current and forecasted. The loss severity estimate used in the allowance for credit loss methodology for HELOCs 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 15 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 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, nonperforming and impaired loans First Mortgages, HELOCs, PALs, and other 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 and unpaid interest receivable is reversed 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.
Equipment, office facilities, and property	Equipment, office facilities, and property Equipment, office facilities, and property are recorded at cost net of accumulated depreciation and amortization, except for land, which is recorded at cost. Equipment, office facilities, and property include certain capitalized costs of acquired or internally developed software. Costs for internally developed software are capitalized when the costs relate to development of approved projects for our internal needs that result in additional functionality. Costs related to preliminary project and post-project activities are expensed as incurred. Equipment, office facilities, and property (other than land) are depreciated on a straight-line basis over their estimated useful lives.Equipment, office facilities, and property are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable.
Goodwill	Goodwill Goodwill is not amortized but is tested for impairment annually or whenever indications of impairment exist. Impairment exists when the carrying amount of a reporting unit exceeds its estimated fair value, resulting in an impairment charge for this excess, with the maximum charge limited to the carrying value of goodwill allocated to that reporting unit. Our annual impairment testing date is April 1 st . Schwab can elect to qualitatively assess goodwill for impairment if it is more likely than not that the fair value of a reporting unit exceeds its carrying value. A qualitative assessment considers macroeconomic and other industry-specific factors, such as trends in short-term and long-term interest rates and the ability to access capital, and Company specific factors such as market capitalization in excess of net assets, trends in revenue generating activities, and merger or acquisition activity. If the Company elects to bypass qualitatively assessing goodwill, or it is not more likely than not that the fair value of a reporting unit exceeds its carrying value, management estimates the fair values of each of the Company’s reporting units (defined as the Company’s businesses for which financial information is available and reviewed regularly by management) and compares it to their carrying values. The estimated fair values of the reporting units are established using an income approach based on a discounted cash flow model that includes significant assumptions about the future operating results and cash flows of each reporting unit, a market approach which compares each reporting unit to comparable companies in their respective industries, as well as a market capitalization analysis.
Intangible assets	Intangible assets Finite-lived intangible assets are amortized over their useful lives in a manner that best reflects their economic benefit. All intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable.
Low-Income Housing Tax Credit (LIHTC) Investments	Low-income housing tax credit (LIHTC) investments We account for investments in qualified affordable housing projects using the proportional amortization method if the applicable requirements are met. The proportional amortization method amortizes the cost of the investment over the period in which the investor expects to receive tax credits and other tax benefits, and the resulting amortization is recognized as a component of taxes on income. The carrying value of LIHTC investments is included in other assets on the consolidated balance sheets. Unfunded commitments related to LIHTC investments are included in accrued expenses and other liabilities on the consolidated balance sheets.
Leases	Leases The Company has operating leases for corporate offices, branch locations, and server equipment and determines if an arrangement is a lease at inception. Leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the lease term. The Company has also elected to not record leases acquired in a business combination on the balance sheet if the remaining term as of the acquisition date is 12 months or less. Right-of-use (ROU) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The lease liability may include payments that depend on a rate or index (such as the Consumer Price Index), measured using the rate or index at the commencement date. Payments that vary because of changes in facts or circumstances occurring after the commencement date are considered variable. These payments are not recognized as part of the lease liability and are expensed in the period incurred. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. We have lease agreements with lease and non-lease components. For the majority of our leases (real estate leases), the Company has elected the practical expedient to account for the lease and non-lease components as a single lease component. We have not elected the practical expedient for equipment leases and account for lease and non-lease components separately for those classes of leases. As the rates implicit in our leases are not readily determinable, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Our lease terms may include periods covered by options to extend when it is reasonably certain that we will exercise those options. The lease terms may also include periods covered by options to terminate when it is reasonably certain that we will not exercise that option. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term.
Advertising and market development	Advertising and market development Advertising and market development activities include the cost to produce and distribute marketing campaigns as well as client incentives and discounts. Such costs are generally expensed when incurred.
Income taxes	Income taxes Schwab provides for income taxes on all transactions that have been recognized in the consolidated financial statements. Accordingly, deferred tax assets are adjusted to reflect the tax rates at which future taxable amounts will likely be settled or realized. The effects of tax rate changes on future deferred tax assets and deferred tax liabilities, as well as other changes in income tax laws, are recorded in earnings in the period such changes are enacted. Uncertain tax positions are evaluated to determine whether they are more likely than not to be sustained upon examination. When tax positions are more likely than not to be sustained upon examination the difference between positions taken on tax return filings and estimated potential tax settlement outcomes are recognized in accrued expenses and other liabilities. If a position is not more likely than not to be
Share-based compensation	Share-based compensation Share-based compensation includes employee and board of director stock options and restricted stock units. Schwab measures compensation expense for these share-based payment arrangements based on their estimated fair values as of the grant date. The fair value of the share-based award is recognized over the service period as share-based compensation. Share-based compensation expense is based on options or units expected to vest and therefore is reduced for estimated forfeitures. Per the Company’s accounting policy election, forfeitures are estimated at the time of grant and reviewed annually based on the Company’s historical forfeiture experience. Share-based compensation expense is adjusted in subsequent periods if actual forfeitures differ from estimated forfeitures. The excess tax benefits or deficiencies from the exercise of stock options and the vesting of restricted stock units are recorded in taxes on income.
Fair values of assets and liabilities	Fair values of assets and liabilities Fair value is defined as the price that would be received to sell an asset or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurement accounting guidance describes the fair value hierarchy for disclosing assets and liabilities measured at fair value based on the inputs used to value them. The fair value hierarchy maximizes the use of observable inputs and minimizes the use of unobservable inputs. Observable inputs are based on market pricing data obtained from third-party sources independent of the Company. A quoted price in an active market provides the most reliable evidence of fair value and is generally used to measure fair value whenever available. Unobservable inputs reflect management’s judgment about the assumptions market participants would use in pricing the asset or liability. Where inputs used to measure fair value of an asset or liability are from different levels of the hierarchy, the asset or liability is categorized based on the lowest level input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input requires judgment. The fair value hierarchy includes three levels based on the objectivity of the inputs as follows: • Level 1 inputs are quoted prices in active markets as of the measurement date for identical assets or liabilities that the Company has the ability to access. • Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates, benchmark yields, issuer spreads, new issue data, and collateral performance. • Level 3 inputs are unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. 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 deposits; 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
New Accounting Standards	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. 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. 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 changed the Company’s accounting treatment for these types of implementation costs prospectively from the adoption date. Standard Description 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. N/A. Effective March 12, 2020 through December 31, 2022 The Company adopted this guidance prospectively as of October 1, 2020. There was no impact to the Company’s consolidated financial statements upon initial adoption.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Schedule of Estimated Useful Lives	Estimated useful lives are as follows: All equipment types and furniture 3 to 10 years Buildings 40 years Building and land improvements 20 years Software 3 to 10 years (1) Leasehold improvements Lesser of useful life or lease term (1) Amortized over contractual term if less than three years. Equipment, office facilities, and property are detailed below: December 31, 2020 2019 Software $ 2,314 $ 1,876 Buildings 1,444 1,056 Leasehold improvements 455 360 Information technology equipment 374 253 Construction in progress 325 324 Furniture and equipment 288 241 Land 208 163 Telecommunications equipment 135 91 Other 7 — Total equipment, office facilities, and property 5,550 4,364 Accumulated depreciation and amortization (2,667) (2,236) Total equipment, office facilities, and property — net (1) $ 2,883 $ 2,128 (1) The Company assumed the estimated fair value of TD Ameritrade’s equipment, office facilities and property as of the date acquisition on October 6, 2020. See Note 3.

Business Acquisitions (Tables)

Business Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Schedule of Equity Interest Issued	The provisional purchase price was calculated as follows: Fair value of consideration for TD Ameritrade outstanding common stock $ 21,664 Fair value of replaced TD Ameritrade equity awards attributable to pre-combination services (1) 94 Provisional purchase price $ 21,758 (1) Share-based awards held by TD Ameritrade employees prior to the acquisition date were assumed by Schwab and converted into share-based awards with respect to CSC common stock, after giving effect to the exchange ratio of 1.0837. Such share-based awards are otherwise subject to the same terms and conditions as were applicable immediately before the merger, except for performance-based restricted stock units which were converted into time-based restricted stock units. The portion of the fair value of the share-based awards that relates to services performed by the employees prior to the acquisition date is included in the purchase price.
Schedule of Purchase Price	The following table summarizes provisional information including the purchase price, fair value estimates of the assets acquired and liabilities assumed, and resulting goodwill as of the October 6, 2020 acquisition date. Purchase price $ 21,758 Fair values of assets acquired: Cash and cash equivalents 3,484 Cash and investments segregated and on deposit for regulatory purposes 14,236 Receivables from brokerage clients 28,009 Available for sale securities 1,779 Acquired intangible assets 8,880 Equipment, office facilities, and property 470 Other assets 3,088 Total assets acquired 59,946 Fair values of liabilities assumed: Payables to brokerage clients 37,599 Accrued expenses and other liabilities 6,975 Long-term debt 3,829 Total liabilities assumed 48,403 Fair value of net identifiable assets acquired 11,543 Goodwill $ 10,215 The following table summarizes the purchase price, fair value estimates of the assets acquired and liabilities assumed, and resulting goodwill as of the May 26, 2020 acquisition date, adjusted for the post-closing adjustments described above. Purchase price $ 1,581 Fair values of assets acquired: Cash segregated and on deposit for regulatory purposes 4,392 Receivables from brokerage clients 80 Acquired intangible assets 1,109 Total assets acquired 5,581 Fair values of liabilities assumed: Payables to brokerage clients 4,472 Total liabilities assumed 4,472 Fair value of net identifiable assets acquired 1,109 Goodwill $ 472
Schedule Of Tangible Assets Acquired	The following table summarizes the major classes of tangible and intangible assets and their respective estimated fair values and weighted-average useful lives: Estimated Fair Value Weighted-Average Estimated Useful Life (Years) Equipment, office facilities, and property Real property (1) $ 226 37 Personal property (2) 162 2 Construction in progress 49 N/A Land 33 N/A Total equipment, office facilities, and property $ 470 Acquired intangible assets Client relationships $ 8,700 20 Existing technology 165 2 Trade names 15 2 Total acquired intangible assets $ 8,880 (1) Consists primarily of buildings. (2) Consists primarily of equipment and leasehold improvements. N/A Not applicable.
Schedule of Intangible Assets Acquired	The following table summarizes the major classes of tangible and intangible assets and their respective estimated fair values and weighted-average useful lives: Estimated Fair Value Weighted-Average Estimated Useful Life (Years) Equipment, office facilities, and property Real property (1) $ 226 37 Personal property (2) 162 2 Construction in progress 49 N/A Land 33 N/A Total equipment, office facilities, and property $ 470 Acquired intangible assets Client relationships $ 8,700 20 Existing technology 165 2 Trade names 15 2 Total acquired intangible assets $ 8,880 (1) Consists primarily of buildings. (2) Consists primarily of equipment and leasehold improvements. N/A Not applicable. Estimated Fair Value Weighted-Average Estimated Useful Life (years) Client relationships $ 962 18 Brokerage referral agreement (1) 142 20 Royalty-free license 5 7 Total acquired intangible assets $ 1,109 (1) The brokerage referral agreement has an initial term of 5 years and is automatically renewable for one Acquired intangible assets and goodwill are detailed below: December 31, 2020 December 31, 2019 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Client relationships $ 10,089 $ 386 $ 9,703 $ 274 $ 228 $ 46 Technology 305 112 193 89 84 5 Trade names 113 18 95 91 14 77 Total acquired intangible assets $ 10,507 $ 516 $ 9,991 $ 454 $ 326 $ 128
Schedule of Pro Forma Information	The unaudited pro forma financial information is presented for informational purposes only, and is not necessarily indicative of future operations or results had the TD Ameritrade acquisition been completed as of January 1, 2019. Year Ended 2020 2019 Total net revenues $ 16,514 $ 16,561 Net income 4,655 5,240 Year Ended 2020 2019 Total net revenues $ 11,794 $ 11,057 Net income 3,005 3,407

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Schwab's Revenue	Disaggregation of Schwab’s revenue by major source is as follows: Year Ended December 31, 2020 2019 2018 Net interest revenue Interest revenue $ 6,531 $ 7,580 $ 6,680 Interest expense (418) (1,064) (857) Net interest revenue 6,113 6,516 5,823 Asset management and administration fees Mutual funds, ETFs, and CTFs (1) 1,770 1,747 1,837 Advice solutions 1,443 1,198 1,139 Other (1) 262 266 253 Asset management and administration fees 3,475 3,211 3,229 Trading revenue Commissions 739 549 685 Order flow revenue (2) 621 135 139 Principal transactions 56 68 78 Trading revenue (2) 1,416 752 902 Bank deposit account fees 355 — — Other (2) 332 242 178 Total net revenues $ 11,691 $ 10,721 $ 10,132 (1) Beginning in the first quarter of 2019, a change was made to move CTFs from other asset management and administration fees. Prior period amounts have been recast to reflect this change. (2) Beginning in the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Amounts in prior periods have been reclassified to reflect this change.

Receivables from and Payables_2

Receivables from and Payables to Brokerage Clients (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Summary of Receivables from and Payables to Brokerage Clients	Receivables from and payables to brokerage clients are detailed below: December 31, 2020 2019 Receivables Margin loans, net of allowance for credit losses $ 60,865 $ 19,474 Other brokerage receivables 3,575 2,293 Receivables from brokerage clients — net $ 64,440 $ 21,767 Payables Interest-bearing payables $ 84,642 $ 29,009 Non-interest-bearing payables 19,559 10,211 Payables to brokerage clients $ 104,201 $ 39,220

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 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: December 31, 2020 Amortized Gross Unrealized Gross Unrealized Fair Available for sale securities U.S. agency mortgage-backed securities $ 283,911 $ 7,005 $ 563 $ 290,353 Asset-backed securities (1) 18,808 174 84 18,898 Corporate debt securities (2) 12,408 388 — 12,796 U.S. Treasury securities 10,631 25 — 10,656 U.S. state and municipal securities 1,544 153 — 1,697 Foreign government agency securities 1,411 2 — 1,413 Non-agency commercial mortgage-backed securities 1,213 52 — 1,265 Certificates of deposit 300 — — 300 Other 22 — — 22 Total available for sale securities $ 330,248 $ 7,799 $ 647 $ 337,400 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 51% and 43% of asset-backed securities held as of December 31, 2020 and 2019, respectively, were Federal Family Education Loan Program Asset-Backed Securities. Asset-backed securities collateralized by credit card receivables represented approximately 36% and 42% of the asset-backed securities held as of December 31, 2020 and 2019, respectively. (2) As of December 31, 2020 approximately 46% 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 consolidated balance sheets, but excluded from this table is $2.5 billion of AFS commercial paper as of December 31, 2019 (none as of December 31, 2020). 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 Total December 31, 2020 Fair Unrealized Fair Unrealized Fair Unrealized Available for sale securities U.S. agency mortgage-backed securities $ 61,706 $ 551 $ 4,774 $ 12 $ 66,480 $ 563 Asset-backed securities 1,398 13 5,822 71 7,220 84 Total $ 63,104 $ 564 $ 10,596 $ 83 $ 73,700 $ 647 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: December 31, 2020 Within After 1 year through After 5 years through After Total U.S. agency mortgage-backed securities $ 1,758 $ 22,392 $ 63,400 $ 202,803 $ 290,353 Asset-backed securities 15 5,975 4,012 8,896 18,898 Corporate debt securities 3,632 6,429 2,735 — 12,796 U.S. Treasury securities 10,316 340 — — 10,656 U.S. state and municipal securities — 116 824 757 1,697 Foreign government agency securities 125 1,288 — — 1,413 Non-agency commercial mortgage-backed securities — — — 1,265 1,265 Certificates of deposit 300 — — — 300 Other — — — 22 22 Total fair value 16,146 36,540 70,971 213,743 337,400 Total amortized cost $ 16,080 $ 35,119 $ 68,080 $ 210,969 $ 330,248 Weighted-average yield (1) 1.01 % 2.09 % 1.81 % 1.10 % 1.35 % (1) The weighted-average yield is computed using the amortized cost at December 31, 2020.
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: Year Ended December 31, 2020 2019 2018 Proceeds $ 4,801 $ 24,495 $ 115 Gross realized gains 5 16 — Gross realized losses 1 10 —

Bank Loans and Related Allowa_2

Bank Loans and Related Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Composition of Bank Loans and Delinquency Analysis by Loan Segment	The composition of bank loans and delinquency analysis by portfolio segment and class of financing receivable is as follows: December 31, 2020 Current 30-59 days 60-89 days > 90 days past due and other (3) Total past due and other Total Allowance for credit Total bank – net Residential real estate: First Mortgages (1,2) $ 14,804 $ 27 $ 1 $ 72 $ 100 $ 14,904 $ 22 $ 14,882 HELOCs (1,2) 823 1 1 17 19 842 5 837 Total residential real estate 15,627 28 2 89 119 15,746 27 15,719 Pledged asset lines 7,901 10 5 — 15 7,916 — 7,916 Other 181 — — — — 181 3 178 Total bank loans $ 23,709 $ 38 $ 7 $ 89 $ 134 $ 23,843 $ 30 $ 23,813 December 31, 2019 Residential real estate: 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 Total residential real estate 12,770 26 5 20 51 12,821 15 12,806 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 $72 million and $74 million at December 31, 2020 and 2019, respectively. (2) At December 31, 2020 and 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 December 31, 2020 or 2019.
Changes in Allowance for Credit Losses	Changes in the allowance for credit losses on bank loans were as follows: December 31, 2020 December 31, 2019 December 31, 2018 First Mortgages HELOCs Total residential real estate Other Total (1) First Mortgages HELOCs Total residential real estate Other Total (1) First Mortgages HELOCs Total residential real estate Other Total (1) Balance at beginning of year $ 11 $ 4 $ 15 $ 3 $ 18 $ 14 $ 5 $ 19 $ 2 $ 21 $ 16 $ 8 $ 24 2 $ 26 Adoption of ASU 2016-13 1 — 1 — 1 — — — — — — — — — — Charge-offs — — — — — — — — — — — — — (1) (1) Recoveries 1 — 1 — 1 1 1 2 — 2 1 1 2 — 2 Provision for credit losses 9 1 10 — 10 (4) (2) (6) 1 (5) (3) (4) (7) 1 (6) Balance at end of year $ 22 $ 5 $ 27 $ 3 $ 30 $ 11 $ 4 $ 15 $ 3 $ 18 $ 14 $ 5 $ 19 $ 2 $ 21 Note: Substantially all of the bank loans were collectively evaluated for impairment at December 31, 2019 and 2018. (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: December 31, 2020 2019 Nonaccrual loans (1) $ 89 $ 22 Other real estate owned (2) 1 1 Total nonperforming assets 90 23 Troubled debt restructurings 1 2 Total nonperforming assets and troubled debt restructurings $ 91 $ 25 (1) Nonaccrual loans include nonaccrual troubled debt restructurings. (2) Included in other assets on the 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 December 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 $ 1 $ — $ — $ — $ — $ 2 $ 3 $ — $ — $ — 620 – 679 29 13 3 8 17 14 84 1 3 4 680 – 739 794 355 105 181 166 253 1,854 82 80 162 ≥740 7,150 2,452 449 858 1,029 1,025 12,963 380 296 676 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Origination LTV ≤70% $ 6,653 $ 2,211 $ 396 $ 793 $ 1,024 $ 911 $ 11,988 $ 351 $ 269 $ 620 >70% – ≤90% 1,321 609 161 254 188 380 2,913 112 107 219 >90% – ≤100% — — — — — 3 3 — 3 3 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Weighted Average <620 $ 5 $ 2 $ 1 $ 4 $ 2 $ 17 $ 31 $ 3 $ 9 $ 12 620 – 679 67 34 16 21 20 40 198 12 20 32 680 – 739 784 252 66 121 110 171 1,504 58 55 113 ≥740 7,118 2,532 474 901 1,080 1,066 13,171 390 295 685 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Estimated Current LTV (1) ≤70% $ 6,999 $ 2,582 $ 533 $ 1,034 $ 1,207 $ 1,283 $ 13,638 $ 452 $ 368 $ 820 >70% – ≤90% 975 238 24 13 5 11 1,266 11 9 20 >90% – ≤100% — — — — — — — — 1 1 >100% — — — — — — — — 1 1 Total $ 7,974 $ 2,820 $ 557 $ 1,047 $ 1,212 $ 1,294 $ 14,904 $ 463 $ 379 $ 842 Percent of Loans on 0.09 % 0.38 % 1.02 % 0.87 % 0.24 % 2.82 % 0.48 % 1.37 % 2.80 % 2.02 % (1) Represents the LTV for the full line of credit (drawn and undrawn) for revolving HELOCs. December 31, 2020 Balance Weighted Average Updated FICO Percent of Loans on Nonaccrual Status Pledged Asset Lines Weighted-Average LTV (1) =70% $ 7,916 770 — (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).
Convert to Amortizing Loans	The following table presents HELOCs converted to amortizing loans during each period presented: December 31, 2020 2019 HELOCs converted to amortizing loans $ 26 $ 44 The following table presents when current outstanding HELOCs will convert to amortizing loans: December 31, 2020 Balance Converted to an amortizing loan by period end $ 379 Within 1 year 31 > 1 year – 3 years 88 > 3 years – 5 years 95 > 5 years 249 Total $ 842

Equipment, Office Facilities,_2

Equipment, Office Facilities, and Property (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Schedule of Equipment, Office Facilities, and Property	Estimated useful lives are as follows: All equipment types and furniture 3 to 10 years Buildings 40 years Building and land improvements 20 years Software 3 to 10 years (1) Leasehold improvements Lesser of useful life or lease term (1) Amortized over contractual term if less than three years. Equipment, office facilities, and property are detailed below: December 31, 2020 2019 Software $ 2,314 $ 1,876 Buildings 1,444 1,056 Leasehold improvements 455 360 Information technology equipment 374 253 Construction in progress 325 324 Furniture and equipment 288 241 Land 208 163 Telecommunications equipment 135 91 Other 7 — Total equipment, office facilities, and property 5,550 4,364 Accumulated depreciation and amortization (2,667) (2,236) Total equipment, office facilities, and property — net (1) $ 2,883 $ 2,128 (1) The Company assumed the estimated fair value of TD Ameritrade’s equipment, office facilities and property as of the date acquisition on October 6, 2020. See Note 3.

Goodwill and Acquired Intangi_2

Goodwill and Acquired Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets Acquired	The following table summarizes the major classes of tangible and intangible assets and their respective estimated fair values and weighted-average useful lives: Estimated Fair Value Weighted-Average Estimated Useful Life (Years) Equipment, office facilities, and property Real property (1) $ 226 37 Personal property (2) 162 2 Construction in progress 49 N/A Land 33 N/A Total equipment, office facilities, and property $ 470 Acquired intangible assets Client relationships $ 8,700 20 Existing technology 165 2 Trade names 15 2 Total acquired intangible assets $ 8,880 (1) Consists primarily of buildings. (2) Consists primarily of equipment and leasehold improvements. N/A Not applicable. Estimated Fair Value Weighted-Average Estimated Useful Life (years) Client relationships $ 962 18 Brokerage referral agreement (1) 142 20 Royalty-free license 5 7 Total acquired intangible assets $ 1,109 (1) The brokerage referral agreement has an initial term of 5 years and is automatically renewable for one Acquired intangible assets and goodwill are detailed below: December 31, 2020 December 31, 2019 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Client relationships $ 10,089 $ 386 $ 9,703 $ 274 $ 228 $ 46 Technology 305 112 193 89 84 5 Trade names 113 18 95 91 14 77 Total acquired intangible assets $ 10,507 $ 516 $ 9,991 $ 454 $ 326 $ 128
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Estimated future annual amortization expense for acquired intangible assets as of December 31, 2020 is as follows: 2021 $ 615 2022 596 2023 534 2024 518 2025 512 Thereafter 7,139 Total $ 9,914
Changes in Carrying Amount of Goodwill as Allocated to Reportable Segments	The changes in the carrying amount of goodwill, as allocated to our reportable segments, are presented in the following table: Investor Advisor Total Balance at December 31, 2018 $ 1,096 $ 131 $ 1,227 Goodwill acquired and other changes during the period — — — Balance at December 31, 2019 1,096 131 1,227 Goodwill acquired in TD Ameritrade acquisition 6,380 3,835 10,215 Goodwill acquired in other acquisitions 494 16 510 Balance at December 31, 2020 $ 7,970 $ 3,982 $ 11,952

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Components of Other Assets	The components of other assets are as follows: December 31, 2020 2019 Other receivables from brokers, dealers, and clearing organizations $ 1,748 $ 235 Receivables — interest, dividends, and other 1,180 788 Other investments (1) 1,019 633 Operating lease ROU assets 937 577 Securities borrowed 873 735 Other securities owned at fair value 687 718 Customer contract receivables 579 356 Capitalized contract costs 303 281 Other 457 264 Total other assets $ 7,783 $ 4,587 (1) Primarily CRA-related, including LIHTC investments; also includes investments in FHLB stock of $29 million and $35 million at December 31, 2020 and 2019, respectively, which can only be sold to the issuer at its par value. Any cash dividends received from investments in FHLB stock are recognized as interest revenue in the consolidated statements of income. During 2020, CSB and CSPB became members of the Federal Reserve and as a condition of membership, are required to hold Federal Reserve Stock. As such, other investments also includes investments in FRB stock of $191 million at December 31, 2020.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	12 Months Ended
	Dec. 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: December 31, 2020 December 31, 2019 Aggregate Aggregate Maximum exposure Aggregate Aggregate Maximum exposure to loss LIHTC Investments (1) $ 649 $ 344 $ 649 $ 516 $ 275 $ 516 Other CRA Investments (2) 118 — 152 120 — 154 Total $ 767 $ 344 $ 801 $ 636 $ 275 $ 670 (1) Aggregate assets and aggregate liabilities are included in other assets and accrued expenses and other liabilities, respectively, on the consolidated balance sheets. (2) Other CRA investments are accounted for as loans at amortized cost, equity method investments, AFS securities, or using the adjusted cost method. Aggregate assets are included in AFS securities, bank loans – net, or other assets on the consolidated balance sheets.

Bank Deposits (Tables)

Bank Deposits (Tables)	12 Months Ended
	Dec. 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: December 31, 2020 2019 Interest-bearing deposits: Deposits swept from brokerage accounts $ 332,513 $ 201,531 Checking 17,785 12,650 Savings and other 6,739 5,168 Total interest-bearing deposits 357,037 219,349 Non-interest-bearing deposits 985 745 Total bank deposits $ 358,022 $ 220,094

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 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 December 31, 2020 and 2019. Date of Principal Amount Outstanding Issuance 2020 2019 CSC Fixed-rate Senior Notes: 4.450% due July 22, 2020 (1) 07/22/10 $ — $ 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 0.900% due March 11, 2026 12/11/20 1,250 — 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 — 1.650% due March 11, 2031 12/11/20 750 — Floating-rate Senior Notes: Three-month LIBOR + 0.32% due May 21, 2021 05/22/18 600 600 Total CSC Senior Notes 9,881 7,481 TDA Fixed-rate Senior Notes: 2.950% due April 1, 2022 03/09/15 750 N/A 3.750% due April 1, 2024 11/01/18 400 N/A 3.625% due April 1, 2025 10/22/14 500 N/A 3.300% due April 1, 2027 04/27/17 800 N/A 2.750% due October 1, 2029 08/16/19 500 N/A Floating-rate TDA Senior Notes: Three-month LIBOR + 0.43% due November 1, 2021 11/01/18 600 N/A Total TDA Senior Notes 3,550 N/A Other financing 6 — Unamortized premium/(discount) — net 249 (14) Debt issuance costs (54) (37) Total long-term debt $ 13,632 $ 7,430 (1) Matured on July 22, 2020. N/A Not applicable.
Annual Maturities on Long-term Debt Outstanding	Annual maturities on long-term debt outstanding at December 31, 2020, are as follows: Maturities 2021 $ 1,802 2022 1,008 2023 802 2024 900 2025 2,225 Thereafter 6,700 Total maturities 13,437 Unamortized discount — net 249 Debt issuance costs (54) Total long-term debt $ 13,632

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Schedule of Leases	The following table details the amounts and locations of lease assets and liabilities on the consolidated balance sheet: December 31, 2020 2019 Lease assets: Balance Sheet Classification Operating lease ROU assets Other assets $ 937 $ 577 Lease liabilities: Operating lease liabilities Accrued expenses and other liabilities $ 1,033 $ 650
Schedule of Lease Cost and Lease Term and Discount Rate	The components of lease expense are as follows: Year Ended December 31, 2020 2019 Lease Cost (1) Operating lease cost (2) $ 166 $ 137 Variable lease cost (3) 34 34 (1) Rent expense related to operating leases was $146 million in 2018. (2) Includes short-term leases, which are immaterial. (3) Includes payments that are entirely variable and amounts that represent the difference between payments based on an index or rate that would be reflected in the lease liability and what is actually incurred. The following tables present supplemental lease information: December 31, 2020 2019 Lease Term and Discount Rate Weighted-average remaining lease term (years) 7.02 7.15 Weighted-average discount rate 2.86 % 3.42 %
Schedule of Maturity of Lease Liabilities	Maturity of Lease Liabilities Operating Leases (1) 2021 $ 182 2022 193 2023 166 2024 134 2025 117 Thereafter 340 Total lease payments 1,132 Less: Interest 99 Present value of lease liabilities $ 1,033

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 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: December 31, 2020 2019 Commitments to extend credit related to unused HELOCs, PALs, and other lines of credit $ 8,141 $ 10,753 Commitments to purchase First Mortgage loans 1,917 1,521 Total $ 10,058 $ 12,274

Exit and Other Related Liabil_2

Exit and Other Related Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Summary of the Activity in Exit Liabilities	The following is a summary of the activity in the Company’s exit and other related liabilities for the year ended December 31, 2020: Investor Services Advisor Services Total Balance at December 31, 2019 $ — $ — $ — Exit and other related liabilities assumed in business acquisition 18 5 23 Costs incurred and charged to expense (1) 138 38 176 Costs paid or otherwise settled (70) (19) (89) Balance at December 31, 2020 (2) $ 86 $ 24 $ 110 (1) Costs incurred for severance pay and other termination benefits, as well as retention costs, are included in employee compensation and benefits on the consolidated statements of income. (2) Included in accrued and expenses and other liabilities on the consolidated balance sheets.
Summary of the Cumulative Amount of Acquisition-Related Exit Costs	The following table summarizes the exit and other related costs incurred by the Company for the year ended December 31, 2020, which represents cumulative costs incurred to date: Investor Services Advisor Services Employee Facility Exit Costs (1) Investor Services Total Employee Facility Exit Costs (1) Advisor Services Total Total Compensation and benefits $ 138 $ — $ 138 $ 38 $ — $ 38 $ 176 Occupancy and equipment — 6 6 — 1 1 7 Depreciation and amortization — 2 2 — 1 1 3 Total $ 138 $ 8 $ 146 $ 38 $ 2 $ 40 $ 186 (1) Costs related to facility closures. These costs, which are comprised of accelerated amortization of ROU assets and accelerated depreciation of fixed assets, relate to the impact of abandoning leased and other properties.

Financial Instruments Subject_2

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Tables)	12 Months Ended
	Dec. 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 Offset in the Consolidated Net Amounts Presented in the Consolidated Gross Amounts Not Offset in the Net Counterparty Collateral December 31, 2020 Assets Resale agreements (1) $ 14,904 $ — $ 14,904 $ — $ (14,904) (2) $ — Securities borrowed (3) 873 — 873 (673) (195) 5 Total $ 15,777 $ — $ 15,777 $ (673) $ (15,099) $ 5 Liabilities Securities loaned (4,5) $ 7,549 $ — $ 7,549 $ (673) $ (6,049) $ 827 Total $ 7,549 $ — $ 7,549 $ (673) $ (6,049) $ 827 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 consolidated balance sheets. (2) Actual collateral was greater than or equal to the value of the related assets. At December 31, 2020 and 2019, the fair value of collateral received in connection with resale agreements that are available to be repledged or sold was $15.2 billion and $9.2 billion, respectively. (3) Included in other assets in the consolidated balance sheets. (4) Included in accrued expenses and other liabilities in the 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 December 31, 2020 and 2019.
Summary of the Fair Value of Client Securities Available to Utilize as Collateral and Amounts Pledged	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: December 31, 2020 2019 Fair value of client securities available to be pledged $ 84,006 $ 26,685 Fair value of securities pledged for: Fulfillment of requirements with the Options Clearing Corporation (1) $ 10,222 $ 2,171 Fulfillment of client short sales 6,274 2,293 Securities lending to other broker-dealers 6,522 1,017 Total collateral pledged $ 23,018 $ 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 $183 million as of December 31, 2020 and $142 million as of December 31, 2019.

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Hierarchy for 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: December 31, 2020 Level 1 Level 2 Level 3 Balance at Cash equivalents: Money market funds $ 11,159 $ — $ — $ 11,159 Total cash equivalents 11,159 — — 11,159 Investments segregated and on deposit for regulatory purposes: Certificates of deposit — 550 — 550 U.S. Government securities — 30,698 — 30,698 Total investments segregated and on deposit for regulatory purposes — 31,248 — 31,248 Available for sale securities: U.S. agency mortgage-backed securities — 290,353 — 290,353 Asset-backed securities — 18,898 — 18,898 Corporate debt securities — 12,796 — 12,796 U.S. Treasury securities — 10,656 — 10,656 U.S. state and municipal securities — 1,697 — 1,697 Foreign government agency securities — 1,413 — 1,413 Non-agency commercial mortgage-backed securities — 1,265 — 1,265 Certificates of deposit — 300 — 300 Other — 22 — 22 Total available for sale securities — 337,400 — 337,400 Other assets: Equity and bond mutual funds 361 — — 361 U.S. Government securities — 253 — 253 State and municipal debt obligations — 37 — 37 Equity, corporate debt, and other securities 7 29 — 36 Total other assets 368 319 — 687 Total $ 11,527 $ 368,967 $ — $ 380,494 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: December 31, 2020 Carrying Level 1 Level 2 Level 3 Balance at Assets Cash and cash equivalents $ 29,189 $ 29,189 $ — $ — $ 29,189 Cash and investments segregated and on deposit for regulatory purposes 19,143 4,212 14,931 — 19,143 Receivables from brokerage clients — net 64,436 — 64,436 — 64,436 Bank loans — net: First Mortgages 14,882 — 15,305 — 15,305 HELOCs 837 — 838 — 838 Pledged asset lines 7,916 — 7,916 — 7,916 Other 178 — 178 — 178 Total bank loans — net 23,813 — 24,237 — 24,237 Other assets 2,883 — 2,883 — 2,883 Liabilities Bank deposits $ 358,022 $ — $ 358,022 $ — $ 358,022 Payables to brokerage clients 104,201 — 104,201 — 104,201 Accrued expenses and other liabilities 8,263 — 8,263 — 8,263 Long-term debt 13,626 — 14,829 — 14,829 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 regulatory purposes 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)	12 Months Ended
	Dec. 31, 2020
Stockholders' Equity Note [Abstract]
Preferred Stock Issued and Outstanding	The following is a summary of CSC’s non-cumulative perpetual preferred stock outstanding as of such dates: Dividend Rate in Effect at December 31, 2020 Date at Which Dividend Rate Becomes Floating or Resets Floating Annual Rate of Three-Month LIBOR/ Term Five or Ten-Year Treasury plus (2,3) : Shares Issued and Outstanding (in thousands) at December 31, Liquidation Preference Per Share Carrying Value at December 31, Earliest Redemption Date 2020 (1) 2019 (1) 2020 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/Fixed-rate reset: 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 % Series G 25 — 100,000 2,470 — 04/30/20 5.375 % 06/01/25 06/01/25 4.971 % Series H 25 — 100,000 2,470 — 12/11/20 4.000 % 12/01/30 12/01/30 3.079 % Total preferred stock 1,811 1,761 $ 7,733 $ 2,793 (1) Represented by depositary shares, except for Series A. (2) The Series G dividend rate resets on each five five five (3) The Series H dividend rate resets on each ten ten ten N/A Not applicable. Dividends declared on the Company’s preferred stock are as follows: Year Ended December 31, 2020 2019 2018 Total Per Share Total Per Share Total Per Share Series A $ 28.0 $ 70.00 $ 28.0 $ 70.00 $ 28.0 $ 70.00 Series C 36.0 60.00 36.0 60.00 36.0 60.00 Series D 44.6 59.52 44.6 59.52 44.6 59.52 Series E 27.8 4,625.00 27.8 4,625.00 27.8 4,625.00 Series F 25.0 5,000.00 25.0 5,000.00 27.2 5,430.56 Series G (1) 78.8 3,150.35 N/A N/A N/A N/A Series H (2) N/A N/A N/A N/A N/A N/A Total $ 240.2 $ 161.4 $ 163.6 (1) Series G Preferred Stock was issued on April 30, 2020. Dividends are paid quarterly, and the first dividend was paid on September 1, 2020. (2) Series H Preferred Stock was issued on December 11, 2020. Dividends are paid quarterly beginning on March 1, 2021. N/A Not applicable.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Components of Other Comprehensive Income (Loss)	AOCI represents cumulative gains and losses that are not reflected in earnings. The components of other comprehensive income (loss) are as follows: Year Ended December 31, 2020 2019 2018 Before Tax Net of Before Tax Net of Before Tax Net of Change in net unrealized gain (loss) on available for sale Net unrealized gain (loss) $ 6,961 $ (1,658) $ 5,303 $ 430 $ (102) $ 328 $ (123) $ 30 $ (93) Other reclassifications included in other revenue (4) 1 (3) (6) 1 (5) — — — Change in net unrealized gain (loss) on held to maturity Amortization of amounts previously recorded upon transfer to — — — 36 (9) 27 35 (8) 27 Other 8 (2) 6 (14) 4 (10) (1) — (1) Other comprehensive income (loss) $ 6,965 $ (1,659) $ 5,306 $ 446 $ (106) $ 340 $ (89) $ 22 $ (67)
Accumulated Other Comprehensive Income Balances	AOCI balances are as follows: Total AOCI Balance at December 31, 2017 $ (152) Adoption of accounting standards (1) (33) Available for sale securities: Net unrealized gain (loss) (93) Held to maturity securities: Amortization of amounts previously recorded upon transfer to held to maturity from available for sale 27 Other (1) Balance at December 31, 2018 $ (252) Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 309 Net unrealized gain on securities transferred to available for sale from held to maturity (2) 19 Other reclassifications included in other revenue (5) Held to maturity securities: Amortization of amounts previously recorded upon transfer to held to maturity from available for sale 27 Other (10) Balance at December 31, 2019 $ 88 Available for sale securities: Net unrealized gain (loss), excluding transfers to available for sale from held to maturity 4,246 Net unrealized gain on securities transferred to available for sale from held to maturity (3) 1,057 Other reclassifications included in other revenue (3) Other 6 Balance at December 31, 2020 $ 5,394 (1) As part of the adoption of ASU 2018-02, “ Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ”, we elected to reclassify the income tax effects of the Tax Cuts and Jobs Act from items in AOCI into retained earnings as of January 1, 2018. (2) In the first quarter of 2019, the Company made an election to transfer a portion of its HTM securities to AFS as part of the adoption of ASU 2017-12. The transfer resulted in a net of tax increase to AOCI of $19 million. See Note 6 for additional discussion on the 2019 transfer of HTM securities to AFS. (3) 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 6 for additional discussion on the 2020 transfer of HTM securities to AFS.

Employee Incentive, Retiremen_2

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Stock-Based Compensation Expense and Related Income Tax Benefit	A summary of share-based compensation expense and related income tax benefit is as follows: Year Ended December 31, 2020 2019 2018 Stock option expense $ 36 $ 51 $ 51 Restricted stock unit expense (1) 156 120 136 Employee stock purchase plan expense 12 12 10 Total share-based compensation expense $ 204 $ 183 $ 197 Income tax benefit on share-based compensation expense (2) $ (49) $ (44) $ (47) (1) Restricted stock unit expense in 2018 includes $36 million related to special stock awards issued to non-officer employees.
Stock Option Activity	Stock option activity is summarized below: Number Weighted- Average Exercise Price Weighted- Average Remaining Contractual Aggregate Intrinsic Outstanding at December 31, 2019 26 $ 32.10 5.75 $ 403 Converted TD Ameritrade stock options 1 25.81 Granted 1 41.45 Exercised (4) 23.10 Forfeited (1) — 44.04 Expired (1) — 43.83 Outstanding at December 31, 2020 24 $ 33.67 5.36 $ 452 Vested and expected to vest at December 31, 2020 24 $ 33.67 5.36 $ 452 Vested and exercisable at December 31, 2020 19 $ 30.51 4.64 $ 414 (1) Number of options was less than 500 thousand.
Information on Stock Options Granted and Exercised	Information on stock options granted and exercised is presented below: Year Ended December 31, 2020 2019 2018 Weighted-average fair value of options granted per share $ 11.56 $ 11.97 $ 14.16 Cash received from options exercised 79 118 125 Tax benefit realized on options exercised 11 17 35 Aggregate intrinsic value of options exercised 71 108 189
Assumptions Used to Value Options Granted and Their Expected Lives	The assumptions used to value the options granted during the years presented and their expected lives were as follows: Year Ended December 31, 2020 2019 2018 Weighted-average expected dividend yield 2.08 % 1.85 % 1.42 % Weighted-average expected volatility 36 % 30 % 33 % Weighted-average risk-free interest rate 1.0 % 2.5 % 3.0 % Expected life (in years) 4.3 - 5.9 4.2 - 5.9 4.0 - 5.2
Restricted Stock Units Activity	The Company’s restricted stock units activity is summarized below: Number Weighted- Average Grant Date Fair Value Outstanding at December 31, 2019 8 $ 42.93 Converted TD Ameritrade restricted stock units 4 36.94 Granted 3 39.26 Vested (5) 39.78 Forfeited (1) — 41.13 Outstanding at December 31, 2020 10 $ 40.85 (1) Number of units was less than 500 thousand.
Schedule of Changes in Projected Benefit Obligations	The following table presents the changes in projected benefit obligation: December 31, 2020 2019 Projected benefit obligation at beginning of year $ 83 $ 56 Benefit cost (1) 17 13 Actuarial (gain)/loss (2) (8) 14 Projected benefit obligation at end of year (3) $ 92 $ 83 (1) Includes service cost and interest cost, which are recognized in compensation and benefits expense and other expense, respectively, in the consolidated statements of income. (2) Actuarial (gain)/loss is reflected in the consolidated statements of comprehensive income and is included in AOCI on the consolidated balance sheets. (3) This amount is recognized as a liability in accrued expenses and other liabilities on the consolidated balance sheets.

Taxes on Income (Tables)

Taxes on Income (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Tax Expense	The components of taxes on income are as follows: Year Ended December 31, 2020 2019 2018 Current: Federal $ 967 $ 958 $ 847 State 172 184 159 Total current 1,139 1,142 1,006 Deferred: Federal (113) 3 42 State (25) (1) 7 Total deferred (138) 2 49 Taxes on income $ 1,001 $ 1,144 $ 1,055
Temporary Differences That Created Deferred Tax Assets and Liabilities	The temporary differences that created deferred tax assets and liabilities are detailed below: December 31, 2020 2019 Deferred tax assets: Employee compensation, severance, and benefits $ 271 $ 154 Operating lease liabilities 249 159 Reserves and allowances 70 14 Debt fair value remeasurement 67 — State and local taxes 37 22 Net operating loss carryforwards 8 6 Total deferred tax assets 702 355 Valuation allowance (8) (3) Deferred tax assets — net of valuation allowance 694 352 Deferred tax liabilities: Amortization of acquired intangible assets (1,954) (51) Net unrealized gain on available for sale securities (1,686) (28) Operating lease ROU assets (233) (146) Capitalized internal-use software development costs (101) (97) Capitalized contract costs (72) (68) Equipment, office facilities, and property (69) (62) Other (41) (10) Total deferred tax liabilities (4,156) (462) Deferred tax asset/(liability) — net (1) $ (3,462) $ (110) (1) Amounts are included in accrued expenses and other liabilities on the consolidated balance sheets at December 31, 2020 and 2019.
Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate	A reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows: Year Ended December 31, 2020 2019 2018 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal tax benefit 3.2 3.2 3.0 Equity compensation benefit (0.3) (0.5) (1.0) Other (0.6) (0.1) 0.1 Effective income tax rate 23.3 % 23.6 % 23.1 %
Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: December 31, 2020 2019 Balance at beginning of year $ 101 $ 112 Additions for tax positions related to the current year 15 3 Additions for tax positions related to prior years 3 4 Additions for current year acquisitions 200 — Reductions for tax positions related to prior years (7) (2) Reductions due to lapse of statute of limitations (24) (14) Reductions for settlements with tax authorities (40) (2) Balance at end of year $ 248 $ 101

Regulatory Requirements (Tables

Regulatory Requirements (Tables)	12 Months Ended
	Dec. 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 December 31, 2020 Amount Ratio Amount Ratio Amount Ratio (2) CSC Common Equity Tier 1 Risk-Based Capital $ 22,916 18.5 % N/A $ 5,575 4.5 % Tier 1 Risk-Based Capital 30,649 24.7 % N/A 7,433 6.0 % Total Risk-Based Capital 30,688 24.8 % N/A 9,910 8.0 % Tier 1 Leverage 30,649 6.3 % N/A 19,396 4.0 % Supplementary Leverage Ratio 30,649 6.2 % N/A 14,744 3.0 % CSB Common Equity Tier 1 Risk-Based Capital $ 17,526 19.2 % $ 5,919 6.5 % $ 4,098 4.5 % Tier 1 Risk-Based Capital 17,526 19.2 % 7,285 8.0 % 5,464 6.0 % Total Risk-Based Capital 17,558 19.3 % 9,106 10.0 % 7,285 8.0 % Tier 1 Leverage 17,526 5.5 % 15,979 5.0 % 12,783 4.0 % Supplementary Leverage Ratio 17,526 5.4 % N/A N/A 9,763 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 December 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 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 December 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 for CS&Co	Net capital and net capital requirements for CS&Co, TDAC, and TD Ameritrade, Inc., are as follows: December 31, 2020 2019 CS&Co Net capital $ 3,117 $ 3,700 Minimum dollar requirement 1.000 0.250 2% of aggregate debit balances 616 446 Net capital in excess of required net capital $ 2,501 $ 3,254 TDAC Net capital $ 4,040 N/A Minimum dollar requirement 1.500 N/A 2% of aggregate debit balances 748 N/A Net capital in excess of required net capital $ 3,292 N/A TD Ameritrade, Inc. Net capital $ 350 N/A Minimum dollar requirement 0.250 N/A 2% of aggregate debit balances — N/A Net capital in excess of required net capital $ 350 N/A

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 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 Year Ended December 31, 2020 2019 2018 2020 2019 2018 2020 2019 2018 Net Revenues Net interest revenue $ 4,391 $ 4,685 $ 4,341 $ 1,722 $ 1,831 $ 1,482 $ 6,113 $ 6,516 $ 5,823 Asset management and administration fees 2,544 2,289 2,260 931 922 969 3,475 3,211 3,229 Trading revenue (1) 1,156 503 604 260 249 298 1,416 752 902 Bank deposit account fees 255 — — 100 — — 355 — — Other (1) 262 146 116 70 96 62 332 242 178 Total net revenues 8,608 7,623 7,321 3,083 3,098 2,811 11,691 10,721 10,132 Expenses Excluding Interest 5,529 4,284 4,145 1,862 1,589 1,425 7,391 5,873 5,570 Income before taxes on income $ 3,079 $ 3,339 $ 3,176 $ 1,221 $ 1,509 $ 1,386 $ 4,300 $ 4,848 $ 4,562 Capital expenditures $ 535 $ 507 $ 390 $ 206 $ 246 $ 186 $ 741 $ 753 $ 576 Depreciation and amortization (2) $ 288 $ 216 $ 158 $ 126 $ 106 $ 119 $ 414 $ 322 $ 277 Amortization of acquired intangible assets (2) $ 149 $ 26 $ 28 $ 41 $ 1 $ 1 $ 190 $ 27 $ 29 (1) Beginning in 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change. (2) Beginning in 2020, amortization of acquired intangible assets was reclassified from depreciation and amortization. Prior periods have been reclassified to reflect this change.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
EPS under Basic and Diluted Computations	EPS under the basic and diluted computations for both common stock and nonvoting common stock are as follows: Year Ended December 31, 2020 2019 2018 Common Stock Common Stock – Nonvoting (1) Common Stock Common Stock – Nonvoting (1) Common Stock Common Stock – Nonvoting (1) Basic earnings per share: Numerator Net income $ 3,255 $ 44 $ 3,704 N/A $ 3,507 N/A Preferred stock dividends and other (2) (253) (3) (178) N/A (178) N/A Net income available to common stockholders $ 3,002 $ 41 $ 3,526 N/A $ 3,329 N/A Denominator Weighted-average common shares outstanding — 1,410 19 1,311 N/A 1,348 N/A Basic earnings per share $ 2.13 $ 2.13 $ 2.69 N/A $ 2.47 N/A Diluted earnings per share: Numerator Net income available to common stockholders $ 3,002 $ 41 $ 3,526 N/A $ 3,329 N/A Reallocation of net income available to 41 — N/A N/A N/A N/A Allocation of net income available to common $ 3,043 $ 41 $ 3,526 N/A $ 3,329 N/A Denominator Weighted-average common shares outstanding — 1,410 19 1,311 N/A 1,348 N/A Conversion of nonvoting shares to voting shares 19 — N/A N/A N/A N/A Common stock equivalent shares related to 6 — 9 N/A 13 N/A Weighted-average common shares outstanding — diluted (3) 1,435 19 1,320 N/A 1,361 N/A Diluted earnings per share $ 2.12 $ 2.12 $ 2.67 N/A $ 2.45 N/A (1) Nonvoting common stock was issued on October 6, 2020 in conjunction with the acquisition of TD Ameritrade. As such, nonvoting common stock is not applicable for the basic and diluted EPS computations in 2019 and 2018. (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 22 million, 21 million, and 18 million in 2020, 2019, and 2018, respectively. N/A Not applicable.

The Charles Schwab Corporatio_2

The Charles Schwab Corporation - Parent Company Only Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Statements of Income	Condensed Statements of Income Year Ended December 31, 2020 2019 2018 Interest revenue $ 38 $ 119 $ 88 Interest expense (273) (248) (184) Net interest expense (235) (129) (96) Trading revenue 1 — — Other revenue (1) (1) 1 Expenses Excluding Interest: Professional services (68) (24) (6) Other expenses excluding interest (85) (83) (79) Loss before income tax benefit and equity in net income of subsidiaries (388) (237) (180) Income tax benefit/(expense) 45 (9) 20 Loss before equity in net income of subsidiaries (343) (246) (160) Equity in net income of subsidiaries: Equity in undistributed net income/(distributions in excess of net income) of subsidiaries 2,476 (1,198) 2,590 Dividends from bank subsidiaries — 4,915 750 Dividends from non-bank subsidiaries 1,166 233 327 Net Income 3,299 3,704 3,507 Preferred stock dividends and other (1) 256 178 178 Net Income Available to Common Stockholders $ 3,043 $ 3,526 $ 3,329 (1) Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units.
Condensed Balance Sheets	Condensed Balance Sheets December 31, 2020 2019 Assets Cash and cash equivalents $ 4,654 $ 2,839 Receivables from subsidiaries 1,260 1,085 Available for sale securities 4,982 1,743 Held to maturity securities — 224 Investment in non-bank subsidiaries 29,550 7,090 Investment in bank subsidiaries 25,548 16,325 Other assets 371 304 Total assets $ 66,365 $ 29,610 Liabilities and Stockholders’ Equity Accrued expenses and other liabilities $ 458 $ 430 Payables to subsidiaries 34 5 Long-term debt 9,813 7,430 Total liabilities 10,305 7,865 Stockholders’ equity 56,060 21,745 Total liabilities and stockholders’ equity $ 66,365 $ 29,610
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows Year Ended December 31, 2020 2019 2018 Cash Flows from Operating Activities Net income $ 3,299 $ 3,704 $ 3,507 Adjustments to reconcile net income to net cash provided by (used for) operating activities: Dividends in excess of (equity in undistributed) earnings of subsidiaries (2,476) 1,198 (2,590) Other 41 9 13 Net change in: Other assets (65) 57 (5) Accrued expenses and other liabilities 34 34 28 Net cash provided by (used for) operating activities 833 5,002 953 Cash Flows from Investing Activities Due from (to) subsidiaries — net 46 (122) 408 Increase in investments in subsidiaries (2,172) (1,783) (1,188) Repayments (Advances) of subordinated loan to CS&Co — 185 (185) Purchases of available for sale securities (5,397) (1,141) (1,751) Proceeds from sales of available for sale securities 2 181 — Principal payments on available for sale securities 2,395 994 573 Other investing activities — — (5) Net cash provided by (used for) investing activities (5,126) (1,686) (2,148) Cash Flows from Financing Activities Issuance of long-term debt 3,070 593 3,024 Repayment of long-term debt (700) — (900) Repurchases of common stock — (2,220) (1,000) Net proceeds from preferred stock offerings 4,940 — — Dividends paid (1,280) (1,060) (787) Proceeds from stock options exercised and other 79 118 125 Other financing activities (1) — — Net cash provided by (used for) financing activities 6,108 (2,569) 462 Increase (Decrease) in Cash and Cash Equivalents 1,815 747 (733) Cash and Cash Equivalents at Beginning of Year 2,839 2,092 2,825 Cash and Cash Equivalents at End of Year $ 4,654 $ 2,839 $ 2,092

Quarterly Financial Informati_2

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	Fourth Quarter (1) Third Second First Year Ended December 31, 2020: Total net revenues $ 4,176 $ 2,448 $ 2,450 $ 2,617 Total expenses excluding interest $ 2,700 $ 1,559 $ 1,562 $ 1,570 Net income $ 1,135 $ 698 $ 671 $ 795 Net income available to common stockholders $ 1,050 $ 615 $ 621 $ 757 Weighted-average common shares outstanding — Basic 1,848 1,289 1,288 1,287 Weighted-average common shares outstanding — Diluted 1,855 1,294 1,294 1,294 Earnings per common share — Basic (2) $ .57 $ .48 $ .48 $ .59 Earnings per common share — Diluted (2) $ .57 $ .48 $ .48 $ .58 Dividends declared per common share $ .18 $ .18 $ .18 $ .18 Year Ended December 31, 2019: Total net revenues $ 2,606 $ 2,711 $ 2,681 $ 2,723 Total expenses excluding interest $ 1,494 $ 1,475 $ 1,445 $ 1,459 Net income $ 852 $ 951 $ 937 $ 964 Net income available to common stockholders $ 801 $ 913 $ 887 $ 925 Weighted-average common shares outstanding — Basic 1,284 1,300 1,328 1,333 Weighted-average common shares outstanding — Diluted 1,293 1,308 1,337 1,344 Earnings per common share — Basic $ .62 $ .70 $ .67 $ .69 Earnings per common share — Diluted $ .62 $ .70 $ .66 $ .69 Dividends declared per common share $ .17 $ .17 $ .17 $ .17 (1) The fourth quarter of 2020 includes TD Ameritrade in our consolidated results of operations and financial condition starting on the acquisition date, October 6, 2020. Refer to Item 8 – Note 3 for further information regarding the acquisition of TD Ameritrade.

Introduction and Basis of Pre_2

Introduction and Basis of Presentation (Details)	Dec. 31, 2020branchstate
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Minimum number of domestic branch offices | branch	400
States with domestic branch offices | state	48

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Narrative) (Details)	Dec. 31, 2020classSegments
Accounting Policies [Abstract]
Number of portfolio segments | Segments	3
Number of classes of financing receivables | class	2

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Equipment, Office Facilities, and Property) (Details)	12 Months Ended
	Dec. 31, 2020
All equipment types and furniture [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, property, plant and equipment	3 years
All equipment types and furniture [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, property, plant and equipment	10 years
Buildings [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, property, plant and equipment	40 years
Building improvements and land improvements [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, property, plant and equipment	20 years
Software [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, Software and certain costs incurred for purchasing or developing software, less than	3 years
Software [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, property, plant and equipment	3 years
Software [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Estimated useful life, property, plant and equipment	10 years

Business Acquisitions (TD Ameri

Business Acquisitions (TD Ameritrade Narrative) (Details) - USD ($) $ in Millions	Oct. 06, 2020	Dec. 31, 2020		Dec. 31, 2020		Dec. 31, 2019		Oct. 05, 2020	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 11,952	[1]	$ 11,952	[1]	$ 1,227	[1]		$ 1,227
Service fee	0.15%							0.25%
Investor Services [Member]
Business Acquisition [Line Items]
Goodwill		7,970		7,970		1,096			1,096
Advisor Services [Member]
Business Acquisition [Line Items]
Goodwill		3,982		3,982		131			$ 131
TD Ameritrade [Member]
Business Acquisition [Line Items]
Conversion of shares (in shares)	1.0837
Number of shares issued in acquisition (in shares)	586,000,000
Goodwill	$ 10,215
Equipment, office facilities, and property	470
Estimated Fair Value	8,880
Net revenue		1,700
Net income		$ 583
Acquisition costs				56		11
After-tax acquisition and integration-related costs				$ 115		$ 30
TD Ameritrade [Member] | Investor Services [Member]
Business Acquisition [Line Items]
Goodwill	6,400
TD Ameritrade [Member] | Advisor Services [Member]
Business Acquisition [Line Items]
Goodwill	$ 3,800
TD Ameritrade [Member] | Common Stock [Member]
Business Acquisition [Line Items]
Number of shares issued in acquisition (in shares)	509,000,000
TD Ameritrade [Member] | Common Stock [Member] | TD Bank [Member]
Business Acquisition [Line Items]
Number of shares issued in acquisition (in shares)	177,000,000
TD Ameritrade [Member] | Nonvoting Common Stock [Member] | TD Bank [Member]
Business Acquisition [Line Items]
Number of shares issued in acquisition (in shares)	77,000,000
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Business Acquisitions (Equity I

Business Acquisitions (Equity Interest Issued) (Details) - TD Ameritrade [Member] $ in Millions	Oct. 06, 2020USD ($)shares
Business Acquisition [Line Items]
Fair value of consideration for TD Ameritrade outstanding common stock	$ 21,664
Fair value of replaced TD Ameritrade equity awards attributable to pre-combination services	94
Purchase price	$ 21,758
Conversion of shares (in shares) | shares	1.0837

Business Acquisitions (Purchase

Business Acquisitions (Purchase Price) (Details) - USD ($) $ in Millions	Oct. 06, 2020	May 26, 2020	Dec. 31, 2020	[1]	Dec. 31, 2019	[1]	Dec. 31, 2018
Fair value of liabilities assumed:
Goodwill			$ 11,952		$ 1,227		$ 1,227
TD Ameritrade [Member]
Business Acquisition [Line Items]
Purchase price	$ 21,758
Fair value of assets acquired:
Cash and cash equivalents	3,484
Cash and investments segregated and on deposit for regulatory purposes	14,236
Receivables from brokerage clients	28,009
Available for sale securities	1,779
Acquired intangible assets	8,880
Equipment, office facilities, and property	470
Other assets	3,088
Total assets acquired	59,946
Fair value of liabilities assumed:
Payables to brokerage clients	37,599
Accrued expenses and other liabilities	6,975
Long-term debt	3,829
Total liabilities assumed	48,403
Fair value of net identifiable assets acquired	11,543
Goodwill	$ 10,215
USAA-IMCO [Member]
Business Acquisition [Line Items]
Purchase price		$ 1,581
Fair value of assets acquired:
Cash and investments segregated and on deposit for regulatory purposes		4,392
Receivables from brokerage clients		80
Acquired intangible assets		1,109
Total assets acquired		5,581
Fair value of liabilities assumed:
Payables to brokerage clients		4,472
Total liabilities assumed		4,472
Fair value of net identifiable assets acquired		1,109
Goodwill		$ 472
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Business Acquisitions (Tangible

Business Acquisitions (Tangible and Intangible Assets Acquired) (Details) - USD ($) $ in Millions	Oct. 06, 2020	May 26, 2020
TD Ameritrade [Member]
Business Acquisition [Line Items]
Equipment, office facilities, and property	$ 470
Estimated Fair Value	8,880
USAA-IMCO [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 1,109
Client relationships [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 8,700
Weighted-Average Estimated Useful Life (years)	20 years
Client relationships [Member] | USAA-IMCO [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 962
Weighted-Average Estimated Useful Life (years)		18 years
Technology [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 165
Weighted-Average Estimated Useful Life (years)	2 years
Trade name [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Estimated Fair Value	$ 15
Weighted-Average Estimated Useful Life (years)	2 years
Brokerage referral agreement [Member] | USAA-IMCO [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 142
Weighted-Average Estimated Useful Life (years)		20 years
Initial term		5 years
Renewal period		1 year
Royalty-free license [Member] | USAA-IMCO [Member]
Business Acquisition [Line Items]
Estimated Fair Value		$ 5
Weighted-Average Estimated Useful Life (years)		7 years
Real Property [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Equipment, office facilities, and property	$ 226
Estimated useful life, property, plant and equipment	37 years
Personal Property [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Equipment, office facilities, and property	$ 162
Estimated useful life, property, plant and equipment	2 years
Construction in progress [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Equipment, office facilities, and property	$ 49
Land [Member] | TD Ameritrade [Member]
Business Acquisition [Line Items]
Equipment, office facilities, and property	$ 33

Business Acquisitions (Pro Form

Business Acquisitions (Pro Forma Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
TD Ameritrade [Member]
Business Acquisition [Line Items]
Total net revenues	$ 16,514	$ 16,561
Net income	4,655	5,240
USAA-IMCO [Member]
Business Acquisition [Line Items]
Total net revenues	11,794	11,057
Net income	$ 3,005	$ 3,407

Business Acquisitions (USAA-IMC

Business Acquisitions (USAA-IMCO Narrative) (Details) account in Millions, $ in Millions	May 26, 2020USD ($)account	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)		Dec. 31, 2020USD ($)		Dec. 31, 2019USD ($)		Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Goodwill			$ 11,952	[1]	$ 11,952	[1]	$ 1,227	[1]	$ 1,227
USAA-IMCO [Member]
Business Acquisition [Line Items]
Purchase price	$ 1,581
Number of brokerage and managed portfolio accounts acquired | account	1
Client assets acquired	$ 80,000
Adjustment to intangible assets		$ 9
Adjustment to purchase price		43
Adjustment to goodwill		$ 34
Intangible assets acquired	1,109
Goodwill	$ 472
Net revenue			235
Net loss			$ 51
Post-closing adjustment					21
Acquisition costs					54		14
After-tax acquisition and integration-related costs					$ 41		$ 10
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Revenue Recognition (Disaggrega

Revenue Recognition (Disaggregated Revenue) (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Interest revenue	[1]									$ 6,531		$ 7,580		$ 6,680
Interest expense	[1]									(418)		(1,064)		(857)
Net interest revenue	[1]									6,113		6,516		5,823
Other	[1]									332		242		178
Total net revenues		$ 4,176	$ 2,448	$ 2,450	$ 2,617	$ 2,606	$ 2,711	$ 2,681	$ 2,723	11,691	[1]	10,721	[1]	10,132	[1]
Asset Management and administration fees [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	[1],[2]									3,475		3,211		3,229
Asset Management and administration fees, Mutual funds, ETFs, and CTFs [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers										1,770		1,747		1,837
Asset Management and administration fees, Advice solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers										1,443		1,198		1,139
Asset Management and administration fees, Other [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers										262		266		253
Trading revenue [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	[1]									1,416		752		902
Trading revenue, Commissions [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers										739		549		685
Trading revenue, Order Flow Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers										621		135		139
Trading revenue, Principal Transactions [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers										56		68		78
Bank Deposit Account Fees [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	[1]									$ 355		$ 0		$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Includes fee waivers of $127 million for the year ended December 31, 2020.

Revenue Recognition (Narrative)

Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Customer contract receivables	$ 579	$ 356
Other assets [Member]
Disaggregation of Revenue [Line Items]
Customer contract receivables	$ 579	$ 356

Receivables from and Payables_3

Receivables from and Payables to Brokerage Clients (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Margin loans, net of allowance for credit losses		$ 60,865	$ 19,474
Other brokerage receivables		3,575	2,293
Receivables from brokerage clients — net	[1]	64,440	21,767
Payables
Interest-bearing payables		84,642	29,009
Non-interest-bearing payables		19,559	10,211
Payables to brokerage clients	[1]	$ 104,201	$ 39,220
California [Member] | Geographic Concentration Risk [Member] | Contract with Customer [Member]
Concentration Risk [Line Items]
Percent of client accounts		17.00%	22.00%
California [Member] | Geographic Concentration Risk [Member] | Contract with Customer [Member] | TD Ameritrade [Member]
Concentration Risk [Line Items]
Percent of client accounts		17.00%
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

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		Dec. 31, 2020		Jan. 01, 2020	Dec. 31, 2019
Available for sale securities
Amortized Cost		$ 330,248			$ 61,155
Gross Unrealized Gains		7,799			407
Gross Unrealized Losses		647			140
Fair Value	[1]	337,400			61,422
Held to maturity securities
Amortized Cost		0	[1]	$ 134,700	134,706	[1]
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		283,911			45,964
Gross Unrealized Gains		7,005			312
Gross Unrealized Losses		563			121
Fair Value		290,353			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		18,808			4,970
Gross Unrealized Gains		174			30
Gross Unrealized Losses		84			13
Fair Value		18,898			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		12,408			5,427
Gross Unrealized Gains		388			57
Gross Unrealized Losses		0			0
Fair Value		12,796			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		10,631			3,387
Gross Unrealized Gains		25			3
Gross Unrealized Losses		0			6
Fair Value		10,656			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		1,544
Gross Unrealized Gains		153
Gross Unrealized Losses		0
Fair Value		1,697
Held to maturity securities
Amortized Cost					1,301
Gross Unrealized Gains					103
Gross Unrealized Losses					0
Fair Value					1,404
Foreign government agency securities [Member]
Available for sale securities
Amortized Cost		1,411
Gross Unrealized Gains		2
Gross Unrealized Losses		0
Fair Value		1,413
Held to maturity securities
Amortized Cost					50
Gross Unrealized Gains					0
Gross Unrealized Losses					0
Fair Value					50
Non-agency commercial mortgage-backed securities [Member]
Available for sale securities
Amortized Cost		1,213			13
Gross Unrealized Gains		52			0
Gross Unrealized Losses		0			0
Fair Value		1,265			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		300			1,000
Gross Unrealized Gains		0			4
Gross Unrealized Losses		0			0
Fair Value		300			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					394
Gross Unrealized Gains					1
Gross Unrealized Losses					0
Fair Value					395
Available-for-sale securities, current		0			2,500
Other [Member]
Available for sale securities
Amortized Cost		22
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		$ 22
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
Available for sale and held to maturity securities		46.00%			32.00%
Federal Family Education Loan Program Asset-Backed Securities [Member]
Held to maturity securities
Asset-backed securities percent		51.00%			43.00%
Collateralized credit card receivables [Member]
Held to maturity securities
Asset-backed securities percent		36.00%			42.00%
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) - USD ($)		Jan. 01, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018	Jan. 01, 2020
Schedule of Held-to-maturity Securities [Line Items]
Other comprehensive income (loss), net of tax				$ 5,306,000,000		$ 340,000,000		$ (67,000,000)
Assets	[1]			549,009,000,000		294,005,000,000
Held to maturity securities				0	[1]	134,706,000,000	[1]		$ 134,700,000,000
Gross Unrealized Gains						1,758,000,000			$ 1,400,000,000
Available-for-sale, written down to fair value				0
Writedown to fair value				0
Available-for-sale, allowance for credit loss				0
OTTI recognized in earnings or other comprehensive income						0		$ 0
Accrued interest receivable				634,000,000
Accrued interest receivable for AFS				0		0
Accrued interest receivable for HTM						471,000,000
Accrued interest writeoff						0
Net unrealized gain (loss) on securities transferred to available for sale from held to maturity [Member]
Schedule of Held-to-maturity Securities [Line Items]
Other comprehensive income (loss), net of tax			$ 19,000,000	1,057,000,000		$ 19,000,000
Trust Deposits [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of pledged securities				1,200,000,000
Federal Reserve Bank [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of pledged securities				7,900,000,000
FHLB [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of pledged securities				$ 44,700,000,000
ASU 2017-12 [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value of securities transferred from held to maturity		$ 8,800,000,000
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

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	Dec. 31, 2020	Dec. 31, 2019
Available for sale securities
Less than 12 months Fair Value	$ 63,104	$ 17,493
Less than 12 months Unrealized Losses	564	100
12 months or longer Fair Value	10,596	8,133
12 months or longer Unrealized Losses	83	40
Total Fair Value	73,700	25,626
Total Unrealized Losses	647	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
U.S. agency mortgage-backed securities [Member]
Available for sale securities
Less than 12 months Fair Value	61,706	16,023
Less than 12 months Unrealized Losses	551	94
12 months or longer Fair Value	4,774	6,592
12 months or longer Unrealized Losses	12	27
Total Fair Value	66,480	22,615
Total Unrealized Losses	563	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
Asset-backed securities [Member]
Available for sale securities
Less than 12 months Fair Value	1,398	960
Less than 12 months Unrealized Losses	13	6
12 months or longer Fair Value	5,822	298
12 months or longer Unrealized Losses	71	7
Total Fair Value	7,220	1,258
Total Unrealized Losses	$ 84	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. 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		Dec. 31, 2020	Dec. 31, 2019
Available for sale securities, fair value
Within 1 year		$ 16,146
After 1 year through 5 years		36,540
After 5 years through 10 years		70,971
After 10 years		213,743
Fair Value	[1]	337,400	$ 61,422
Available for sale securities, amortized cost
Within 1 year		16,080
After 1 year through 5 years		35,119
After 5 years through 10 years		68,080
After 10 years		210,969
Amortized Cost		$ 330,248	61,155
Weighted-average yield
Within 1 year		1.01%
After 1 year through 5 years		2.09%
After 1 year through 5 years		1.81%
After 10 years		1.10%
Total		1.35%
U.S. agency mortgage-backed securities [Member]
Available for sale securities, fair value
Within 1 year		$ 1,758
After 1 year through 5 years		22,392
After 5 years through 10 years		63,400
After 10 years		202,803
Fair Value		290,353	46,155
Available for sale securities, amortized cost
Amortized Cost		283,911	45,964
Asset-backed securities [Member]
Available for sale securities, fair value
Within 1 year		15
After 1 year through 5 years		5,975
After 5 years through 10 years		4,012
After 10 years		8,896
Fair Value		18,898	4,987
Available for sale securities, amortized cost
Amortized Cost		18,808	4,970
Corporate debt securities [Member]
Available for sale securities, fair value
Within 1 year		3,632
After 1 year through 5 years		6,429
After 5 years through 10 years		2,735
After 10 years		0
Fair Value		12,796	5,484
Available for sale securities, amortized cost
Amortized Cost		12,408	5,427
U.S. Treasury securities [Member]
Available for sale securities, fair value
Within 1 year		10,316
After 1 year through 5 years		340
After 5 years through 10 years		0
After 10 years		0
Fair Value		10,656	3,384
Available for sale securities, amortized cost
Amortized Cost		10,631	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		116
After 5 years through 10 years		824
After 10 years		757
Fair Value		1,697
Available for sale securities, amortized cost
Amortized Cost		1,544
Foreign government agency securities [Member]
Available for sale securities, fair value
Within 1 year		125
After 1 year through 5 years		1,288
After 5 years through 10 years		0
After 10 years		0
Fair Value		1,413
Available for sale securities, amortized cost
Amortized Cost		1,411
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		1,265
Fair Value		1,265	13
Available for sale securities, amortized cost
Amortized Cost		1,213	13
Certificates of deposit [Member]
Available for sale securities, fair value
Within 1 year		300
After 1 year through 5 years		0
After 5 years through 10 years		0
After 10 years		0
Fair Value		300	1,004
Available for sale securities, amortized cost
Amortized Cost		300	$ 1,000
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		22
Fair Value		22
Available for sale securities, amortized cost
Amortized Cost		$ 22
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Investment Securities (Proceeds

Investment Securities (Proceeds and Gross Realized Gains And Losses from Sales of Securities Available for Sale) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Proceeds	[1]	$ 4,801	$ 24,495	$ 115
Gross realized gains		5	16	0
Gross realized losses		$ 1	$ 10	$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

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 ($)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Past Due [Line Items]
Current		$ 23,709,000,000	$ 18,173,000,000
Past due and other nonaccrual loans		134,000,000	57,000,000
Total loans		23,843,000,000	18,230,000,000
Allowance for credit losses		30,000,000	18,000,000	$ 21,000,000	$ 26,000,000
Total bank loans – net	[1]	23,813,000,000	18,212,000,000
Loans accruing interest contractually 90 days or more past due		0	0
30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		38,000,000	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
>90 Days Past Due And Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		89,000,000	22,000,000
Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current		15,627,000,000	12,770,000,000
Past due and other nonaccrual loans		119,000,000	51,000,000
Total loans		15,746,000,000	12,821,000,000
Allowance for credit losses		27,000,000	15,000,000	19,000,000	24,000,000
Total bank loans – net		15,719,000,000	12,806,000,000
Residential Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		28,000,000	26,000,000
Residential Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		2,000,000	5,000,000
Residential Real Estate [Member] | >90 Days Past Due And Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		89,000,000	20,000,000
First Mortgage [Member]
Financing Receivable, Past Due [Line Items]
Current		14,804,000,000	11,665,000,000
Past due and other nonaccrual loans		100,000,000	39,000,000
Total loans		14,904,000,000	11,704,000,000
Allowance for credit losses		22,000,000	11,000,000	14,000,000	16,000,000
Total bank loans – net		14,882,000,000	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		27,000,000	24,000,000
First Mortgage [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		1,000,000	4,000,000
First Mortgage [Member] | >90 Days Past Due And Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		72,000,000	11,000,000
HELOC's [Member]
Financing Receivable, Past Due [Line Items]
Current		823,000,000	1,105,000,000
Past due and other nonaccrual loans		19,000,000	12,000,000
Total loans		842,000,000	1,117,000,000
Allowance for credit losses		5,000,000	4,000,000	5,000,000	8,000,000
Total bank loans – net		837,000,000	1,113,000,000
HELOC's [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		1,000,000	2,000,000
HELOC's [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
HELOC's [Member] | >90 Days Past Due And Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		17,000,000	9,000,000
Pledged asset lines [Member]
Financing Receivable, Past Due [Line Items]
Current		7,901,000,000	5,202,000,000
Past due and other nonaccrual loans		15,000,000	4,000,000
Total loans		7,916,000,000	5,206,000,000
Allowance for credit losses		0	0
Total bank loans – net		7,916,000,000	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		10,000,000	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		5,000,000	0
Pledged asset lines [Member] | >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		181,000,000	201,000,000
Past due and other nonaccrual loans		0	2,000,000
Total loans		181,000,000	203,000,000
Allowance for credit losses		3,000,000	3,000,000	$ 2,000,000	$ 2,000,000
Total bank loans – net		178,000,000	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] | >90 Days Past Due And Other Nonaccrual Loans [Member]
Financing Receivable, Past Due [Line Items]
Past due and other nonaccrual loans		0	2,000,000
First Mortgage And Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Unamortized premiums and discounts and direct origination costs		$ 72,000,000	$ 74,000,000
First Mortgage And Home Equity [Member] | Loans Geographic Area [Member] | California [Member]
Financing Receivable, Past Due [Line Items]
Concentration risk percentage		45.00%	45.00%
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Bank Loans and Related Allowa_4

Bank Loans and Related Allowance for Credit Losses (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest	$ 43	$ 46
Total bank loans	23,843	18,230
Adjustable Rate First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount of mortgages	$ 12,900
Percent of loans with interest-only payments	26.00%
Percent of interest only adjustable rate	77.00%
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
HELOC's [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Loan Term	30 years
Financing Receivable, Initial Draw Period	10 years
Financing Receivable, Convert to Amortizing Loans, Period	20 years
Total bank loans	$ 842	$ 1,117
Percent of loan balance outstanding, borrowers paid only minimum interest due	52.00%
Home Equity Secured By Second Liens [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total bank loans	$ 664

Bank Loans and Related Allowa_5

Bank Loans and Related Allowance for Credit Losses (Changes in Allowance for Credit Losses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 18	$ 21	$ 26
Charge-offs	0	0	(1)
Recoveries	1	2	2
Provision for loan losses	10	(5)	(6)
Balance at end of period	30	18	21
Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	1	0	0
Balance at end of period		1	0
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	15	19	24
Charge-offs	0	0	0
Recoveries	1	2	2
Provision for loan losses	10	(6)	(7)
Balance at end of period	27	15	19
Residential Real Estate [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	1	0	0
Balance at end of period		1	0
First Mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	11	14	16
Charge-offs	0	0	0
Recoveries	1	1	1
Provision for loan losses	9	(4)	(3)
Balance at end of period	22	11	14
First Mortgage [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	1	0	0
Balance at end of period		1	0
HELOC's [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	4	5	8
Charge-offs	0	0	0
Recoveries	0	1	1
Provision for loan losses	1	(2)	(4)
Balance at end of period	5	4	5
HELOC's [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	0	0	0
Balance at end of period		0	0
Other [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	3	2	2
Charge-offs	0	0	(1)
Recoveries	0	0	0
Provision for loan losses	0	1	1
Balance at end of period	3	3	2
Other [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 0	0	0
Balance at end 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	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonperforming assets	$ 23,843	$ 18,230
Troubled debt restructurings	1	2
Total nonperforming assets and troubled debt restructurings	91	25
Nonperforming Financial Instruments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total nonperforming assets	90	23
Nonperforming Financial Instruments [Member] | Nonaccrual Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	89	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	Dec. 31, 2020USD ($)credit_rating	Dec. 31, 2019USD ($)credit_rating
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 23,843	$ 18,230
First Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	7,974
2019	2,820	4,002
2018	557	1,284
2017	1,047	1,911
2016	1,212	2,149
Pre-2016	1,294	2,358
Total loans	$ 14,904	$ 11,704
Percent of Loans on Nonaccrual Status
2020	0.09%
2019	0.38%	0.04%
2018	1.02%	0.04%
2017	0.87%	0.04%
2016	0.24%	0.08%
Pre-2016	2.82%	0.25%
Total	0.48%	0.09%
First Mortgage [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 7,974
2019	2,820	$ 4,002
2018	557	1,284
2017	1,047	1,911
2016	1,212	2,149
Pre-2016	1,294	2,358
Total loans	14,904	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	6,653
2019	2,211	3,104
2018	396	906
2017	793	1,427
2016	1,024	1,812
Pre-2016	911	1,679
Total loans	11,988	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	1,321
2019	609	898
2018	161	378
2017	254	484
2016	188	337
Pre-2016	380	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	3	3
Total loans	3	3
First Mortgage [Member] | Estimated Current LTV 70% And Below [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	6,999
2019	2,582	3,125
2018	533	1,018
2017	1,034	1,790
2016	1,207	2,119
Pre-2016	1,283	2,330
Total loans	13,638	10,382
First Mortgage [Member] | Estimated Current LTV Greater Than 70% through 90% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	975
2019	238	877
2018	24	265
2017	13	121
2016	5	30
Pre-2016	11	27
Total loans	1,266	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	0	1
2017	0	0
2016	0	0
Pre-2016	0	1
Total loans	0	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	0	0
Total loans	0	0
First Mortgage [Member] | Origination FICO Score Below 620 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1
2019	0	0
2018	0	0
2017	0	0
2016	0	0
Pre-2016	2	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	29
2019	13	12
2018	3	6
2017	8	14
2016	17	20
Pre-2016	14	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	794
2019	355	478
2018	105	220
2017	181	304
2016	166	290
Pre-2016	253	421
Total loans	1,854	1,713
First Mortgage [Member] | Origination FICO Score 740 And Above [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	7,150
2019	2,452	3,512
2018	449	1,058
2017	858	1,593
2016	1,029	1,839
Pre-2016	1,025	1,909
Total loans	12,963	9,911
First Mortgage [Member] | Weighted Average Updated FICO Score Below 620 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	5
2019	2	5
2018	1	4
2017	4	5
2016	2	3
Pre-2016	17	25
Total loans	31	42
First Mortgage [Member] | Wighted Average Updated FICO Score 620 Through 679 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	67
2019	34	45
2018	16	36
2017	21	32
2016	20	26
Pre-2016	40	68
Total loans	198	207
First Mortgage [Member] | Weighted Average Updated FICO Score 680 Through 739 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	784
2019	252	474
2018	66	153
2017	121	213
2016	110	199
Pre-2016	171	307
Total loans	1,504	1,346
First Mortgage [Member] | Weighted Average Updated FICO Score 740 and Above [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020	7,118
2019	2,532	3,478
2018	474	1,091
2017	901	1,661
2016	1,080	1,921
Pre-2016	1,066	1,958
Total loans	13,171	10,109
HELOC's [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	463	611
HELOCs converted to term loans	379	506
Total loans	$ 842	$ 1,117
Percent of Loans on Nonaccrual Status
Revolving HELOCs amortized cost basis	1.37%	0.19%
Total	2.02%	0.83%
HELOCs converted to term loans	2.80%	1.57%
HELOC's [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	$ 463	$ 611
HELOCs converted to term loans	379	506
Total loans	842	1,117
HELOC's [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	351	444
HELOCs converted to term loans	269	354
Total loans	620	798
HELOC's [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	112	167
HELOCs converted to term loans	107	147
Total loans	219	314
HELOC's [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	3	5
Total loans	3	5
HELOC's [Member] | Estimated Current LTV 70% And Below [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	452	578
HELOCs converted to term loans	368	478
Total loans	820	1,056
HELOC's [Member] | Estimated Current LTV Greater Than 70% through 90% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	11	33
HELOCs converted to term loans	9	23
Total loans	20	56
HELOC's [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	1	3
Total loans	1	3
HELOC's [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	1	2
Total loans	1	2
HELOC's [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
HELOC's [Member] | Origination FICO Score 620 Through 679 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	1	1
HELOCs converted to term loans	3	4
Total loans	4	5
HELOC's [Member] | Origination FICO Score 680 Through 739 [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	82	114
HELOCs converted to term loans	80	105
Total loans	162	219
HELOC's [Member] | Origination FICO Score 740 And Above [Member] | Financial Asset Originated [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	380	496
HELOCs converted to term loans	296	397
Total loans	676	893
HELOC's [Member] | Weighted Average Updated FICO Score Below 620 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	3	6
HELOCs converted to term loans	9	15
Total loans	12	21
HELOC's [Member] | Wighted Average Updated FICO Score 620 Through 679 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	12	18
HELOCs converted to term loans	20	22
Total loans	32	40
HELOC's [Member] | Weighted Average Updated FICO Score 680 Through 739 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	58	92
HELOCs converted to term loans	55	80
Total loans	113	172
HELOC's [Member] | Weighted Average Updated FICO Score 740 and Above [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving HELOCs amortized cost basis	390	495
HELOCs converted to term loans	295	389
Total loans	685	884
Pledged asset lines [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	7,916	5,206
Pledged asset lines [Member] | Weighted Average Loan to Value Ratio =70% [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 7,916	$ 5,206
Percent of Loans on Nonaccrual Status
Total	0.00%	0.00%
Weighted Average Updated FICO | credit_rating	770	766

Bank Loans and Related Allowa_8

Bank Loans and Related Allowance for Credit Losses (Convert to Amortizing Loans) (Details) - HELOC's [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
HELOCs converted to amortizing loans	$ 26	$ 44
Converted to an amortizing loan by period end	379
Within 1 year	31
> 1 year – 3 years	88
> 3 years – 5 years	95
> 5 years	249
Total	$ 842

Equipment, Office Facilities,_3

Equipment, Office Facilities, and Property (Schedule of Equipment, Office Facilities, and Property) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		$ 5,550	$ 4,364
Accumulated depreciation and amortization		(2,667)	(2,236)
Property, Plant and Equipment, Net, Total	[1]	2,883	2,128
Software [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		2,314	1,876
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		1,444	1,056
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		455	360
Information technology equipment [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		374	253
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		325	324
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		288	241
Land [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		208	163
Telecommunications equipment [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		135	91
Other assets [Member]
Property, Plant and Equipment [Line Items]
Total equipment, office facilities, and property		$ 7	$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Goodwill and Acquired Intangi_3

Goodwill and Acquired Intangible Assets (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0	$ 0	$ 0

Goodwill and Acquired Intangi_4

Goodwill and Acquired Intangible Assets (Acquired Intangible Assets) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		$ 10,507	$ 454
Accumulated Amortization		516	326
Net Carrying Value	[1]	9,991	128
Client relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		10,089	274
Accumulated Amortization		386	228
Net Carrying Value		9,703	46
Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		305	89
Accumulated Amortization		112	84
Net Carrying Value		193	5
Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		113	91
Accumulated Amortization		18	14
Net Carrying Value		$ 95	$ 77
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Goodwill and Acquired Intangi_5

Goodwill and Acquired Intangible Assets (Amortization Expense) (Details) $ in Millions	Dec. 31, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2021	$ 615
2022	596
2023	534
2024	518
2025	512
Thereafter	7,139
Net Carrying Value	9,914
Indefinite-lived intangible assets	$ 77

Goodwill and Acquired Intangi_6

Goodwill and Acquired Intangible Assets (Changes in Carrying Amount of Goodwill as Allocated to Reportable Segments) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020		Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance		$ 1,227	[1]	$ 1,227
Goodwill acquired and other changes during the period				0
Goodwill acquired		510
Ending balance	[1]	11,952		1,227
TD Ameritrade [Member]
Goodwill [Roll Forward]
Goodwill acquired		10,215
Investor Services [Member]
Goodwill [Roll Forward]
Beginning balance		1,096		1,096
Goodwill acquired and other changes during the period				0
Goodwill acquired		494
Ending balance		7,970		1,096
Investor Services [Member] | TD Ameritrade [Member]
Goodwill [Roll Forward]
Goodwill acquired		6,380
Advisor Services [Member]
Goodwill [Roll Forward]
Beginning balance		131		131
Goodwill acquired and other changes during the period				0
Goodwill acquired		16
Ending balance		3,982		$ 131
Advisor Services [Member] | TD Ameritrade [Member]
Goodwill [Roll Forward]
Goodwill acquired		$ 3,835
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Other Assets (Components of Oth

Other Assets (Components of Other Assets) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Other receivables from brokers, dealers, and clearing organizations		$ 1,748	$ 235
Receivables — interest, dividends, and other		1,180	788
Other investments		1,019	633
Operating lease ROU assets		937	577
Securities borrowed		873	735
Other securities owned at fair value		687	718
Customer contract receivables		579	356
Capitalized contract costs		303	281
Other		457	264
Total other assets	[1]	7,783	4,587
FRB stock		191
Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
FHLB stock		$ 29	$ 35
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Other Assets (Narrative) (Detai

Other Assets (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Capitalized contract cost	$ 303	$ 281
Amortization expense related to capitalized contract costs	$ 63	$ 55

Variable Interest Entities (Nar

Variable Interest Entities (Narrative) (Details) - Variable Interest Entity, Not Primary Beneficiary [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Amortization	$ 56	$ 39
Tax credits and other tax benefits	$ 69	$ 47

Variable Interest Entities (Agg

Variable Interest Entities (Aggregate Assets, Liabilities and Maximum Exposure to Loss) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Assets	[1]	$ 549,009	$ 294,005
Liabilities	[1]	492,949	272,260
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Assets		767	636
Liabilities		344	275
Maximum exposure to loss		801	670
LIHTC Investments [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Assets		649	516
Liabilities		344	275
Maximum exposure to loss		649	516
Other CRA Investments [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Assets		118	120
Liabilities		0	0
Maximum exposure to loss		$ 152	$ 154
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Bank Deposits (Deposits from Ba

Bank Deposits (Deposits from Banking Clients Consisting of Interest Bearing and Noninterest Bearing Deposits) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Interest-bearing deposits:
Deposits swept from brokerage accounts		$ 332,513	$ 201,531
Checking		17,785	12,650
Savings and other		6,739	5,168
Total interest-bearing deposits		357,037	219,349
Non-interest-bearing deposits		985	745
Total bank deposits	[1]	$ 358,022	$ 220,094
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Borrowings (Narrative) (Details

Borrowings (Narrative) (Details)	Dec. 31, 2020USD ($)loan_facility	Oct. 06, 2020USD ($)	Dec. 31, 2019USD ($)
Line of Credit Facility [Line Items]
Senior Notes	$ 9,881,000,000		$ 7,481,000,000
FRB stock	191,000,000
TDAC [Member]
Line of Credit Facility [Line Items]
Borrowings outstanding	0
Unsecured Credit Facility [Member] | TDAC [Member]
Line of Credit Facility [Line Items]
Borrowings on line of credit	$ 0
Number of credit facilities | loan_facility	2
Maximum borrowing capacity	$ 1,500,000,000
Unsecured Credit Facility [Member] | TDAC [Member] | Debt Due 2021 [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	850,000,000
Unsecured Credit Facility [Member] | TDAC [Member] | Debt Due 2022 [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	600,000,000
Unsecured Credit Facility [Member] | TDA Holding [Member]
Line of Credit Facility [Line Items]
Borrowings on line of credit	0
Maximum borrowing capacity	300,000,000
Federal Home Loan Bank Advances [Member]
Line of Credit Facility [Line Items]
FHLB stock	29,000,000		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	55,100,000,000		34,200,000,000
Borrowings on line of credit	0		0
Federal Reserve Bank [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity	7,900,000,000		8,500,000,000
Borrowings on line of credit	0		$ 0
TD Ameritrade [Member] | Senior Notes [Member]
Line of Credit Facility [Line Items]
Senior Notes	$ 3,550,000,000	$ 3,600,000,000

Borrowings (Long-term Debt Incl

Borrowings (Long-term Debt Including Unamortized Debt Discounts and Premiums) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Oct. 06, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Senior Notes		$ 9,881		$ 7,481
Finance lease obligation		6		0
Unamortized premium/(discount) — net		249		(14)
Debt issuance costs		(54)		(37)
Total long-term debt	[1]	13,632		7,430
Senior Notes [Member] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Senior Notes		$ 3,550	$ 3,600
Senior Notes [Member] | Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		4.45%
Senior Notes		$ 0		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 2022 [Member] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		2.95%
Senior Notes		$ 750
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 2024 [Member] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		3.75%
Senior Notes		$ 400
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 2025 [Member] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		3.625%
Senior Notes		$ 500
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 March 2026 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		0.90%
Senior Notes		$ 1,250		0
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 2027 [Member] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		3.30%
Senior Notes		$ 800
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 2029 [Member] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		2.75%
Senior Notes		$ 500
Senior Notes [Member] | Senior Notes Due 2030 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		4.625%
Senior Notes		$ 500		0
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 2031 [Member]
Debt Instrument [Line Items]
Fixed Interest Rate		1.65%
Senior Notes		$ 750		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] | TD Ameritrade [Member]
Debt Instrument [Line Items]
Basis spread		0.43%
Senior Notes		$ 600
Senior Notes [Member] | Floating Rate Senior Notes Due 2021 [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Basis spread		0.32%
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Borrowings (Annual Maturities o

Borrowings (Annual Maturities on Long-term Debt Outstanding) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
2021		$ 1,802
2022		1,008
2023		802
2024		900
2025		2,225
Thereafter		6,700
Total maturities		13,437
Unamortized discount — net		249
Debt issuance costs		(54)	$ (37)
Total long-term debt	[1]	$ 13,632	$ 7,430
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Leases (Leases) (Details)

Leases (Leases) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease ROU assets	$ 937	$ 577
Operating lease ROU assets, Balance Sheet clarification	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating lease liabilities	$ 1,033	$ 650
Operating lease liabilities, Balance Sheet clarification	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

Leases (Lease Cost) (Details)

Leases (Lease Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease cost	$ 166	$ 137
Variable lease cost	$ 34	$ 34
Rent expense			$ 146

Leases (Lease Term and Discount

Leases (Lease Term and Discount Rate) (Details)	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Weighted-average remaining lease term (years)	7 years 7 days	7 years 1 month 24 days
Weighted-average discount rate	2.86%	3.42%

Leases (Maturity of Lease Liabi

Leases (Maturity of Lease Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Lessor, Lease, Description [Line Items]
2021	$ 182
2022	193
2023	166
2024	134
2025	117
Thereafter	340
Total lease payments	1,132
Less: Interest	99
Operating lease liabilities	1,033	$ 650
Lease not yet commenced	$ 24
Minimum [Member]
Lessor, Lease, Description [Line Items]
Lease not yet commenced, term	3 years
Maximum [Member]
Lessor, Lease, Description [Line Items]
Lease not yet commenced, term	15 years

Commitments and Contingencies_2

Commitments and Contingencies (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Oct. 06, 2020
Loss Contingencies [Line Items]
Aggregate face amount of letter of credit agreements	$ 15,000,000
Reduction in deposit balance over 12 month period			$ 10,000,000,000
Floor amount			$ 50,000,000,000
Percentage of fixed rate investments			80.00%
Balance	154,100,000,000		$ 144,600,000,000
Performance Guarantee [Member]
Loss Contingencies [Line Items]
Liability	0
Margin Requirements [Member]
Loss Contingencies [Line Items]
Funds drawn under LOC's	0
First Mortgage [Member]
Loss Contingencies [Line Items]
Financing receivable, purchased during period	8,700,000,000	$ 4,400,000,000
Home Equity Line of Credit [Member]
Loss Contingencies [Line Items]
Financing receivable, purchased during period	$ 458,000,000	$ 242,000,000

Commitments and Contingencies_3

Commitments and Contingencies (Commitments to Extend/Purchase) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitments to purchase	$ 10,058	$ 12,274
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	8,141	10,753
First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commitments to purchase	$ 1,917	$ 1,521

Exit and Other Related Liabil_3

Exit and Other Related Liabilities (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Oct. 06, 2020	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Pre-tax charges			$ 186
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Acquisition-related exit costs		$ 650
Period expected to be expensed	15 months
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Acquisition-related exit costs		$ 1,000
Period expected to be expensed	33 months

Exit and Other Related Liabil_4

Exit and Other Related Liabilities (Summary of the Activity in Exit Liabilities) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Restructuring Reserve
Balance at December 31, 2019	$ 0
Exit and other related liabilities assumed in business acquisition	23
Costs incurred and charged to expense	176
Costs paid or otherwise settled	(89)
Balance at December 31, 2020	110
Investor Services [Member] | Employee Compensation and Benefits [Member]
Restructuring Reserve
Balance at December 31, 2019	0
Exit and other related liabilities assumed in business acquisition	18
Costs incurred and charged to expense	138
Costs paid or otherwise settled	(70)
Balance at December 31, 2020	86
Advisor Services [Member] | Employee Compensation and Benefits [Member]
Restructuring Reserve
Balance at December 31, 2019	0
Exit and other related liabilities assumed in business acquisition	5
Costs incurred and charged to expense	38
Costs paid or otherwise settled	(19)
Balance at December 31, 2020	$ 24

Exit and Other Related Liabil_5

Exit and Other Related Liabilities (Summary of the Cumulative Acquisition-Related Exit Costs) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	$ 186
Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	176
Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	7
Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	3
Investor Services [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	146
Investor Services [Member] | Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	138
Investor Services [Member] | Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	6
Investor Services [Member] | Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	2
Investor Services [Member] | Employee Compensation and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	138
Investor Services [Member] | Employee Compensation and Benefits [Member] | Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	138
Investor Services [Member] | Employee Compensation and Benefits [Member] | Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	0
Investor Services [Member] | Employee Compensation and Benefits [Member] | Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	0
Investor Services [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	8
Investor Services [Member] | Facility Exit Costs [Member] | Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	0
Investor Services [Member] | Facility Exit Costs [Member] | Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	6
Investor Services [Member] | Facility Exit Costs [Member] | Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	2
Advisor Services [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	40
Advisor Services [Member] | Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	38
Advisor Services [Member] | Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	1
Advisor Services [Member] | Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	1
Advisor Services [Member] | Employee Compensation and Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	38
Advisor Services [Member] | Employee Compensation and Benefits [Member] | Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	38
Advisor Services [Member] | Employee Compensation and Benefits [Member] | Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	0
Advisor Services [Member] | Employee Compensation and Benefits [Member] | Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	0
Advisor Services [Member] | Facility Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	2
Advisor Services [Member] | Facility Exit Costs [Member] | Compensation and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	0
Advisor Services [Member] | Facility Exit Costs [Member] | Occupancy and equipment [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	1
Advisor Services [Member] | Facility Exit Costs [Member] | Depreciation and amortization [Member]
Restructuring Cost and Reserve [Line Items]
Cumulative amount of acquisition-related exit costs incurred	$ 1

Financial Instruments Subject_3

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Securities Financing Transaction, Fair Value [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of securities borrowed	$ 852	$ 719

Financial Instruments Subject_4

Financial Instruments Subject to Off-Balance Sheet Credit Risk (Offsetting Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Resale agreements
Gross Assets	$ 14,904	$ 9,028
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	14,904	9,028
Counterparty Offsetting	0	0
Collateral	(14,904)	(9,028)
Net Amount	0	0
Securities borrowed
Gross Assets	873	735
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	873	735
Counterparty Offsetting	(673)	(730)
Collateral	(195)	(5)
Net Amount	5	0
Total Gross Assets	15,777	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	15,777	9,763
Total Assets, Gross Amounts Not Offset in the Consolidated Balance Sheet, Counterparty Offsetting	(673)	(730)
Total Assets, Gross Amounts Not Offset in the Consolidated Balance Sheet, Collateral	(15,099)	(9,033)
Total Assets, Net Amount	5	0
Securities loaned
Gross Liabilities	7,549	1,251
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts Presented in the Consolidated Balance Sheets	7,549	1,251
Counterparty Offsetting	(673)	(730)
Collateral	(6,049)	(445)
Net Amount	827	76
Total Gross Liabilities	7,549	1,251
Total Liabilities, Net Amounts Presented in the Consolidated Balance Sheet	7,549	1,251
Total Liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheet, Counterparty Offsetting	(673)	(730)
Total Liabilities, Gross Amounts Not Offset in the Consolidated Balance Sheet, Collateral	(6,049)	(445)
Total Liabilities, Net Amount	827	76
Offsetting Assets [Line Items]
Fair value of client securities available to be pledged	84,006	26,685
Resale And Repurchase Agreements [Member]
Offsetting Assets [Line Items]
Fair value of client securities available to be pledged	$ 15,200	$ 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	Dec. 31, 2020	Dec. 31, 2019
Securities Financing Transaction [Line Items]
Fair value of client securities available to be pledged	$ 84,006	$ 26,685
Fair value of client securities pledged	23,018	5,481
Fulfillment of Requirements with the Options Clearing Corporation [Member]
Securities Financing Transaction [Line Items]
Fair value of client securities pledged	10,222	2,171
Fulfillment of Client Short Sales [Member]
Securities Financing Transaction [Line Items]
Fair value of client securities pledged	6,274	2,293
Securities Lending to Other Broker-Dealers [Member]
Securities Financing Transaction [Line Items]
Fair value of client securities pledged	6,522	1,017
Fully-Paid Client Securities [Member]
Securities Financing Transaction [Line Items]
Fair value of client securities pledged	$ 183	$ 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		Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	[1]	$ 337,400	$ 61,422
Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities			395
Certificates of deposit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		300	1,004
U.S. agency mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		290,353	46,155
Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		12,796	5,484
Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		18,898	4,987
U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		10,656	3,384
U.S. state and municipal securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		1,697
Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		1,413
Non-agency commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		1,265	13
Fair Value, Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		11,159	7,677
Investments segregated and on deposit for regulatory purposes		31,248	8,627
Available for sale securities		337,400	61,422
Other assets		687	718
Total		380,494	78,444
Fair Value, Recurring [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		11,159	5,179
Fair Value, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents			2,498
Available for sale securities			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		550	1,351
Available for sale securities		300	1,004
Fair Value, Recurring [Member] | US Government securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes		30,698	7,276
Other assets		253	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		290,353	46,155
Fair Value, Recurring [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		12,796	5,484
Fair Value, Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		18,898	4,987
Fair Value, Recurring [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		10,656	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		1,697
Fair Value, Recurring [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		1,413
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		1,265	13
Fair Value, Recurring [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		361	442
Fair Value, Recurring [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		37	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		36	27
Fair Value, Recurring [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		22
Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		11,159	5,179
Investments segregated and on deposit for regulatory purposes		0	0
Available for sale securities		0	0
Other assets		368	447
Total		11,527	5,626
Level 1 [Member] | Fair Value, Recurring [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		11,159	5,179
Level 1 [Member] | Fair Value, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents			0
Available for sale securities			0
Level 1 [Member] | 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		0	0
Available for sale securities		0	0
Level 1 [Member] | Fair Value, Recurring [Member] | US 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
Level 1 [Member] | 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		0	0
Level 1 [Member] | Fair Value, Recurring [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0	0
Level 1 [Member] | Fair Value, Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0	0
Level 1 [Member] | Fair Value, Recurring [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0	0
Level 1 [Member] | 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		0
Level 1 [Member] | Fair Value, Recurring [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0
Level 1 [Member] | 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		0	0
Level 1 [Member] | Fair Value, Recurring [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		361	442
Level 1 [Member] | Fair Value, Recurring [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		0	0
Level 1 [Member] | Fair Value, Recurring [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		7	5
Level 1 [Member] | Fair Value, Recurring [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0
Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		0	2,498
Investments segregated and on deposit for regulatory purposes		31,248	8,627
Available for sale securities		337,400	61,422
Other assets		319	271
Total		368,967	72,818
Level 2 [Member] | Fair Value, Recurring [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		0	0
Level 2 [Member] | Fair Value, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents			2,498
Available for sale securities			395
Level 2 [Member] | 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		550	1,351
Available for sale securities		300	1,004
Level 2 [Member] | Fair Value, Recurring [Member] | US Government securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Investments segregated and on deposit for regulatory purposes		30,698	7,276
Other assets		253	202
Level 2 [Member] | 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		290,353	46,155
Level 2 [Member] | Fair Value, Recurring [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		12,796	5,484
Level 2 [Member] | Fair Value, Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		18,898	4,987
Level 2 [Member] | Fair Value, Recurring [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		10,656	3,384
Level 2 [Member] | 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		1,697
Level 2 [Member] | Fair Value, Recurring [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		1,413
Level 2 [Member] | 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		1,265	13
Level 2 [Member] | Fair Value, Recurring [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		0	0
Level 2 [Member] | Fair Value, Recurring [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		37	47
Level 2 [Member] | Fair Value, Recurring [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		29	22
Level 2 [Member] | Fair Value, Recurring [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		22
Level 3 [Member] | Fair Value, Recurring [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		0	0
Other assets		0	0
Total		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | Money market funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents			0
Available for sale securities			0
Level 3 [Member] | 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		0	0
Available for sale securities		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | US 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
Level 3 [Member] | 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		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | Corporate debt securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | Asset-backed securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | U.S. Treasury securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0	0
Level 3 [Member] | 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		0
Level 3 [Member] | Fair Value, Recurring [Member] | Foreign government agency securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		0
Level 3 [Member] | 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		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | Equity and bond mutual funds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | State and municipal debt obligations [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		0	0
Level 3 [Member] | Fair Value, Recurring [Member] | Equity, corporate debt, and other securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Other assets		0	$ 0
Level 3 [Member] | Fair Value, Recurring [Member] | Other [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Fair Values of Assets and Lia_4

Fair Values of Assets and Liabilities (Fair Value of Other Financial Instruments) (Details) - USD ($) $ in Millions	Dec. 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
Corporate debt securities [Member]
Assets:
Held to maturity securities		4,718
Asset-backed securities [Member]
Assets:
Held to maturity securities		17,771
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
U.S. state and municipal securities [Member]
Assets:
Held to maturity securities		1,404
Foreign government agency securities [Member]
Assets:
Held to maturity securities		50
Reported Value Measurement [Member]
Assets:
Cash and cash equivalents	$ 29,189	21,668
Cash and investments segregated and on deposit for regulatory purposes	19,143	11,807
Receivables from brokerage clients — net	64,436	21,763
Held to maturity securities		134,706
Bank loans, net	23,813	18,212
Other assets	2,883	1,014
Liabilities:
Bank deposits	358,022	220,094
Payables to brokerage clients	104,201	39,220
Accrued expenses and other liabilities	8,263	1,882
Long-term debt	13,626	7,430
Reported Value Measurement [Member] | First Mortgage [Member]
Assets:
Bank loans, net	14,882	11,693
Reported Value Measurement [Member] | HELOC's [Member]
Assets:
Bank loans, net	837	1,113
Reported Value Measurement [Member] | Pledged asset lines [Member]
Assets:
Bank loans, net	7,916	5,206
Reported Value Measurement [Member] | Other [Member]
Assets:
Bank loans, net	178	200
Reported Value Measurement [Member] | U.S. agency mortgage-backed securities [Member]
Assets:
Held to maturity securities		109,325
Reported Value Measurement [Member] | Corporate debt securities [Member]
Assets:
Held to maturity securities		4,661
Reported Value Measurement [Member] | Asset-backed securities [Member]
Assets:
Held to maturity securities		17,806
Reported Value Measurement [Member] | Non-agency commercial mortgage-backed securities [Member]
Assets:
Held to maturity securities		1,119
Reported Value Measurement [Member] | U.S. Treasury securities [Member]
Assets:
Held to maturity securities		223
Reported Value Measurement [Member] | Certificates of deposit [Member]
Assets:
Held to maturity securities		200
Reported Value Measurement [Member] | U.S. state and municipal securities [Member]
Assets:
Held to maturity securities		1,301
Reported Value Measurement [Member] | Foreign government agency securities [Member]
Assets:
Held to maturity securities		50
Reported Value Measurement [Member] | Other [Member]
Assets:
Held to maturity securities		21
Portion at Other than Fair Value Measurement [Member]
Assets:
Cash and cash equivalents	29,189	21,668
Cash and investments segregated and on deposit for regulatory purposes	19,143	11,807
Receivables from brokerage clients — net	64,436	21,763
Held to maturity securities		136,099
Bank loans, net	24,237	18,198
Other assets	2,883	1,014
Liabilities:
Bank deposits	358,022	220,094
Payables to brokerage clients	104,201	39,220
Accrued expenses and other liabilities	8,263	1,882
Long-term debt	14,829	7,775
Portion at Other than Fair Value Measurement [Member] | First Mortgage [Member]
Assets:
Bank loans, net	15,305	11,639
Portion at Other than Fair Value Measurement [Member] | HELOC's [Member]
Assets:
Bank loans, net	838	1,153
Portion at Other than Fair Value Measurement [Member] | Pledged asset lines [Member]
Assets:
Bank loans, net	7,916	5,206
Portion at Other than Fair Value Measurement [Member] | Other [Member]
Assets:
Bank loans, net	178	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] | Corporate debt securities [Member]
Assets:
Held to maturity securities		4,718
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] | 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] | U.S. state and municipal securities [Member]
Assets:
Held to maturity securities		1,404
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	29,189	21,668
Cash and investments segregated and on deposit for regulatory purposes	4,212	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] | HELOC's [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] | Corporate debt 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] | 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] | U.S. state and municipal securities [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	14,931	9,015
Receivables from brokerage clients — net	64,436	21,763
Held to maturity securities		136,099
Bank loans, net	24,237	18,198
Other assets	2,883	1,014
Liabilities:
Bank deposits	358,022	220,094
Payables to brokerage clients	104,201	39,220
Accrued expenses and other liabilities	8,263	1,882
Long-term debt	14,829	7,775
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | First Mortgage [Member]
Assets:
Bank loans, net	15,305	11,639
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | HELOC's [Member]
Assets:
Bank loans, net	838	1,153
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Pledged asset lines [Member]
Assets:
Bank loans, net	7,916	5,206
Portion at Other than Fair Value Measurement [Member] | Level 2 [Member] | Other [Member]
Assets:
Bank loans, net	178	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] | Corporate debt securities [Member]
Assets:
Held to maturity securities		4,718
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] | 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] | 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] | 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] | HELOC's [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] | Corporate debt 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] | 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] | U.S. state and municipal securities [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) - USD ($)	Dec. 11, 2020	Oct. 06, 2020	Apr. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 30, 2019	Oct. 25, 2018
Class of Stock [Line Items]
Common stock, shares authorized (shares)				3,000,000,000	3,000,000,000
Preferred stock, par value (USD per share)				$ 0.01	$ 0.01
Shares repurchased (in shares)				0	55,000,000	22,000,000
Shares repurchased					$ 2,220,000,000	$ 1,000,000,000
Preferred stock, shares authorized (in shares)				9,940,000	9,940,000
TD Ameritrade [Member]
Class of Stock [Line Items]
Number of shares issued in acquisition (in shares)		586,000,000
Conversion of shares (in shares)		1.0837
Common Stock [Member]
Class of Stock [Line Items]
Number of shares issued (in shares)					0	0
Share repurchase, authorized amount							$ 4,000,000,000	$ 1,000,000,000
Common Stock [Member] | TD Ameritrade [Member]
Class of Stock [Line Items]
Number of shares issued in acquisition (in shares)		509,000,000
Common Stock [Member] | TD Ameritrade [Member] | TD Bank [Member]
Class of Stock [Line Items]
Number of shares issued in acquisition (in shares)		177,000,000
Maximum percentage of voting interest		9.90%
Depositary Shares [Member]
Class of Stock [Line Items]
Number of shares sold (in shares)	2,500,000		2,500,000
Ownership interest	1.00%		1.00%
Liquidation preference per share (USD per share)	$ 1,000		$ 1,000
Series H Preferred Stock [Member]
Class of Stock [Line Items]
Fixed rate	4.00%			4.00%
Preferred stock, par value (USD per share)	$ 0.01
Liquidation preference per share (USD per share)	$ 100,000			$ 100,000
Proceeds from offering	$ 2,470,000,000
Series G Preferred Stock [Member]
Class of Stock [Line Items]
Fixed rate			5.375%	5.375%
Preferred stock, par value (USD per share)			$ 0.01
Liquidation preference per share (USD per share)			$ 100,000	$ 100,000
Proceeds from offering			$ 2,470,000,000
Nonvoting Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares authorized (shares)		300,000,000		300,000,000	300,000,000
Nonvoting Common Stock [Member] | TD Ameritrade [Member] | TD Bank [Member]
Class of Stock [Line Items]
Number of shares issued in acquisition (in shares)		77,000,000
Shares converted (in shares)		2,000,000
Number of shares held (in shares)				79,000,000

Stockholders' Equity (Preferred

Stockholders' Equity (Preferred Stock Issued and Outstanding) (Details) - USD ($) $ / shares in Units, $ in Millions		Dec. 11, 2020	Apr. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Shares issued (in shares)				1,811,000	1,761,000
Shares outstanding (in shares)				1,811,000	1,761,000
Carrying Value	[1]			$ 7,733	$ 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 (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 (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 (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 (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 (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%
Series G Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)				25,000	0
Shares outstanding (in shares)				25,000	0
Liquidation preference (USD per share)			$ 100,000	$ 100,000
Carrying Value				$ 2,470	$ 0
Dividend Rate in Effect			5.375%	5.375%
Dividend term				5 years
Series G Preferred Stock [Member] | LIBOR [Member]
Class of Stock [Line Items]
Floating Annual Rate				4.971%
Series G Preferred Stock [Member] | US Treasury (UST) Interest Rate [Member]
Class of Stock [Line Items]
Dividend term				5 years
Maturity period				5 years
Series H Preferred Stock [Member]
Class of Stock [Line Items]
Shares issued (in shares)				25,000	0
Shares outstanding (in shares)				25,000	0
Liquidation preference (USD per share)		$ 100,000		$ 100,000
Carrying Value				$ 2,470	$ 0
Dividend Rate in Effect		4.00%		4.00%
Dividend term				10 years
Series H Preferred Stock [Member] | LIBOR [Member]
Class of Stock [Line Items]
Floating Annual Rate				3.079%
Series H Preferred Stock [Member] | US Treasury (UST) Interest Rate [Member]
Class of Stock [Line Items]
Dividend term				10 years
Maturity period				10 years
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Stockholders' Equity (Dividends

Stockholders' Equity (Dividends Declared) (Details) - USD ($) $ / shares in Units, $ in Millions	Apr. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Dividends declared		$ 240.2	$ 161.4	$ 163.6
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared		$ 28	$ 28	$ 28
Dividends declared, per share amount (USD per share)		$ 70	$ 70	$ 70
Dividend Rate in Effect		7.00%
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared		$ 36	$ 36	$ 36
Dividends declared, per share amount (USD per share)		$ 60	$ 60	$ 60
Dividend Rate in Effect		6.00%
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared		$ 44.6	$ 44.6	$ 44.6
Dividends declared, per share amount (USD per share)		$ 59.52	$ 59.52	$ 59.52
Dividend Rate in Effect		5.95%
Series E Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared		$ 27.8	$ 27.8	$ 27.8
Dividends declared, per share amount (USD per share)		$ 4,625	$ 4,625	$ 4,625
Dividend Rate in Effect		4.625%
Series F Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared		$ 25	$ 25	$ 27.2
Dividends declared, per share amount (USD per share)		$ 5,000	$ 5,000	$ 5,430.56
Dividend Rate in Effect		5.00%
Series G Preferred Stock [Member]
Class of Stock [Line Items]
Dividends declared		$ 78.8
Dividends declared, per share amount (USD per share)		$ 3,150.35
Dividend Rate in Effect	5.375%	5.375%

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Components of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other comprehensive income (loss) before tax
Net unrealized gain (loss)	$ 6,961	$ 430	$ (123)
Other reclassifications included in other revenue	(4)	(6)	0
Change in net unrealized gain (loss) on held to maturity securities:
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale	0	36	35
Other	8	(14)	(1)
Other comprehensive income (loss), before tax	6,965	446	(89)
Tax effect
Net unrealized gain (loss)	(1,658)	(102)	30
Other reclassifications included in other revenue	1	1	0
Change in net unrealized gain (loss) on held to maturity securities:
Amortization of amounts previously recorded upon transfer from available for sale	0	(9)	(8)
Other	(2)	4	0
Other comprehensive income (loss)	(1,659)	(106)	22
Net of tax
Net unrealized gain (loss)	5,303	328	(93)
Other reclassifications included in other revenue	(3)	(5)	0
Change in net unrealized gain (loss) on held to maturity securities:
Amortization of amounts previously recorded upon transfer from available for sale	0	27	27
Other	6	(10)	(1)
Other comprehensive income (loss), net of tax	$ 5,306	$ 340	$ (67)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Accumulated Other Comprehensive Income Balances) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Accumulated Other Comprehensive Income
Beginning Balance	$ (252)	$ 88	[1]	$ (252)		$ (152)
Other net changes		5,306		340		(67)
Ending Balance		5,394	[1]	88	[1]	(252)
Adoption of New Accounting Standards [Member]
Accumulated Other Comprehensive Income
Other net changes						(33)
Net unrealized gain (loss), excluding transfers to available for sale from held to maturity [Member]
Accumulated Other Comprehensive Income
Other net changes		4,246		309		(93)
Other reclassifications included in other revenue [Member]
Accumulated Other Comprehensive Income
Other net changes		(3)		(5)
Amortization of amounts previously recorded upon transfer to held to maturity from available for sale [Member]
Accumulated Other Comprehensive Income
Other net changes				27		27
Net unrealized gain (loss) on securities transferred to available for sale from held to maturity [Member]
Accumulated Other Comprehensive Income
Other net changes	$ 19	1,057		19
Other [Member]
Accumulated Other Comprehensive Income
Other net changes		$ 6		$ (10)		$ (1)
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Employee Incentive, Retiremen_3

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Stock-Based Compensation Expense and Related Income Tax Benefit) (Details) - USD ($) $ in Millions		Oct. 06, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	[1]		$ 204	$ 183	$ 197
Income tax benefit on share-based compensation expense			(49)	(44)	(47)
Income tax benefit/(expense)	[2]		(1,001)	(1,144)	(1,055)
TD Ameritrade [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of shares (in shares)		1.0837
Fair value of replaced TD Ameritrade equity awards attributable to pre-combination services		$ 94
Remaining portion of value		$ 73
Period for recognition		1 year 10 months 24 days
Accounting Standards Update 2016-09 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit/(expense)			$ 14	23	46
Stock option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period for recognition			10 months 24 days
Total share-based compensation expense			$ 36	51	51
Restricted stock unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period for recognition			2 years 2 months 12 days
Total share-based compensation expense			$ 156	120	136
Restricted stock unit [Member] | Non-Officer Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense					36
Employee stock purchase plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense			$ 12	$ 12	$ 10
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Employee Incentive, Retiremen_4

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Employee Incentive Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock authorized to be granted under the existing stock incentive plan (in shares)	62,000,000
Total unrecognized compensation cost, net of forfeitures, related to outstanding stock options, restricted stock awards, and restricted stock units	$ 289
Employee stock purchase plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance under the ESPP (in shares)	32,000,000
Stock option plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Stock option plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period from the date of grant in which stock options expire	10 years
Award vesting period	4 years
Stock option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining weighted-average period for unrecognized compensation cost, net of forfeitures, related to outstanding stock options, restricted stock awards, and restricted stock units	10 months 24 days
Restricted stock unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining weighted-average period for unrecognized compensation cost, net of forfeitures, related to outstanding stock options, restricted stock awards, and restricted stock units	2 years 2 months 12 days
Total fair value of restricted stock awards vested	$ 175	$ 123	$ 166
Restricted stock unit [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Restricted stock unit [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining weighted-average period for unrecognized compensation cost, net of forfeitures, related to outstanding stock options, restricted stock awards, and restricted stock units	4 months 24 days

Employee Incentive, Retiremen_5

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Stock Option Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number of Options
Beginning balance (in shares)	26,000
Converted TD Ameritrade stock options (in shares)	1,000
Granted (in shares)	1,000
Exercised (in shares)	(4,000)
Forfeited (in shares)	0
Expired (in shares), less than	500
Ending balance (in shares)	24,000	26,000
Vested and expected to vest (in shares)	24,000
Vested and exercisable (in shares)	19,000
Weighted- Average Exercise Price per Share
Beginning balance (USD per share)	$ 32.10
Converted TD Ameritrade stock options (USD per share)	25.81
Granted (USD per share)	41.45
Exercised (USD per share)	23.10
Forfeited (USD per share)	44.04
Expired (USD per share)	43.83
Ending balance (USD per share)	33.67	$ 32.10
Vested and expected to vest (USD per share)	33.67
Vested and exercisable (USD per share)	$ 30.51
Weighted-Average Remaining Contractual Life
Outstanding	5 years 4 months 9 days	5 years 9 months
Vested and expected to vest	5 years 4 months 9 days
Vested and exercisable	4 years 7 months 20 days
Aggregate Intrinsic Value
Outstanding	$ 452	$ 403
Vested and expected to vest	452
Vested and exercisable	$ 414

Employee Incentive, Retiremen_6

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Information on Stock Options Granted and Exercised) (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Weighted-average fair value of options granted per share (USD per share)		$ 11.56	$ 11.97	$ 14.16
Cash received from options exercised	[1]	$ 79	$ 118	$ 125
Tax benefit realized on options exercised		11	17	35
Aggregate intrinsic value of options exercised		$ 71	$ 108	$ 189
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Employee Incentive, Retiremen_7

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Assumptions Used to Value Options Granted and Their Expected Lives) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average expected dividend yield	2.08%	1.85%	1.42%
Weighted-average expected volatility	36.00%	30.00%	33.00%
Weighted-average risk-free interest rate	1.00%	2.50%	3.00%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	4 years 3 months 18 days	4 years 2 months 12 days	4 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	5 years 10 months 24 days	5 years 10 months 24 days	5 years 2 months 12 days

Employee Incentive, Retiremen_8

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Restricted Stock Units Activity) (Details) - Restricted stock unit [Member] shares in Thousands	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Number of Units
Outstanding Beginning Balance (in shares) | shares	8,000
Converted TD Ameritrade restricted stock units (in shares) | shares	4,000
Granted (in shares) | shares	3,000
Vested (in shares) | shares	(5,000)
Forfeited (in shares), less than | shares	500
Outstanding Ending Balance (in shares) | shares	10,000
Weighted- Average Grant Date Fair Value per Unit
Outstanding Beginning Balance (USD per share) | $ / shares	$ 42.93
Granted (USD per share) | $ / shares	39.26
Converted TD Ameritrade restricted stock units (USD per share) | $ / shares	36.94
Vested (USD per share) | $ / shares	39.78
Forfeited (USD per share) | $ / shares	41.13
Outstanding Ending Balance (USD per share) | $ / shares	$ 40.85

Employee Incentive, Retiremen_9

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Retirement and Deferred Compensation Plans Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Company's total contribution expense	$ 136	$ 118	$ 105
Deferred compensation liability	$ 176	$ 164

Employee Incentive, Retireme_10

Employee Incentive, Retirement, Deferred Compensation, and Career Achievement Plans (Schedule of Changes in Projected Benefit Obligations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Change in Benefit Obligation
Projected benefit obligation at beginning of year	$ 83	$ 56
Benefit cost	17	13
Actuarial (gain)/loss	(8)	14
Projected benefit obligation at the end of year	$ 92	$ 83

Taxes on Income (Narrative) (De

Taxes on Income (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 248	$ 101	$ 112
Unrecognized tax benefits that, if recognized, would affect the annual effective tax rate	202	97
Unrecognized tax benefits, interest and penalties accrued	$ 58	$ 11

Taxes on Income (Income Tax Exp

Taxes on Income (Income Tax Expense) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal		$ 967	$ 958	$ 847
State		172	184	159
Total current		1,139	1,142	1,006
Deferred:
Federal		(113)	3	42
State		(25)	(1)	7
Total deferred	[1]	(138)	2	49
Taxes on income	[2]	$ 1,001	$ 1,144	$ 1,055
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Taxes on Income (Temporary Diff

Taxes on Income (Temporary Differences That Created Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Employee compensation, severance, and benefits	$ 271	$ 154
Operating lease liabilities	249	159
Reserves and allowances	70	14
Debt fair value remeasurement	67	0
State and local taxes	37	22
Net operating loss carryforwards	8	6
Total deferred tax assets	702	355
Valuation allowance	(8)	(3)
Deferred tax assets — net of valuation allowance	694	352
Deferred tax liabilities:
Amortization of acquired intangible assets	(1,954)	(51)
Net unrealized gain on available for sale securities	(1,686)	(28)
Operating lease ROU assets	(233)	(146)
Capitalized internal-use software development costs	(101)	(97)
Capitalized contract costs	(72)	(68)
Equipment, office facilities, and property	(69)	(62)
Other	(41)	(10)
Total deferred tax liabilities	(4,156)	(462)
Deferred tax asset/(liability) — net	$ (3,462)	$ (110)

Taxes on Income (Reconciliation

Taxes on Income (Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal tax benefit	3.20%	3.20%	3.00%
Equity compensation benefit	(0.30%)	(0.50%)	(1.00%)
Other	(0.60%)	(0.10%)	0.10%
Effective income tax rate	23.30%	23.60%	23.10%

Taxes on Income (Reconciliati_2

Taxes on Income (Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 101	$ 112
Additions for tax positions related to the current year	15	3
Additions for tax positions related to prior years	3	4
Additions for current year acquisitions	200	0
Reductions for tax positions related to prior years	(7)	(2)
Reductions due to lapse of statute of limitations	(24)	(14)
Reductions for settlements with tax authorities	(40)	(2)
Balance at end of year	$ 248	$ 101

Regulatory Requirements (Regula

Regulatory Requirements (Regulatory Capital and Ratios) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
CSC [Member]
Common Equity Tier 1 Risk-Based Capital
Actual Amount	$ 22,916	$ 17,660
Actual Ratio	18.50%	19.50%
Minimum Capital Requirement Amount	$ 5,575	$ 4,073
Minimum Capital Requirement Ratio	4.50%	4.50%
Tier 1 Risk-Based Capital
Actual Amount	$ 30,649	$ 20,453
Actual Ratio	24.70%	22.60%
Minimum Capital Requirement Amount	$ 7,433	$ 5,431
Minimum Capital Requirement Ratio	6.00%	6.00%
Total Risk-Based Capital
Actual Amount	$ 30,688	$ 20,472
Actual Ratio	24.80%	22.60%
Minimum Capital Requirement Amount	$ 9,910	$ 7,241
Minimum Capital Requirement Ratio	8.00%	8.00%
Tier 1 Leverage
Actual Amount	$ 30,649	$ 20,453
Actual Ratio	6.30%	7.30%
Minimum Capital Requirement Amount	$ 19,396	$ 11,189
Minimum Capital Requirement Ratio	4.00%	4.00%
Supplemental Leverage Ratio
Actual Amount	$ 30,649	$ 20,453
Actual Ratio	6.20%	7.10%
Minimum Capital Requirement Amount	$ 14,744	$ 8,604
Minimum Capital Requirement Ratio	3.00%	3.00%
CSB [Member]
Common Equity Tier 1 Risk-Based Capital
Actual Amount	$ 17,526	$ 14,819
Actual Ratio	19.20%	20.70%
Minimum to be Well Capitalized Amount	$ 5,919	$ 4,649
Minimum to be Well Capitalized Ratio	6.50%	6.50%
Minimum Capital Requirement Amount	$ 4,098	$ 3,218
Minimum Capital Requirement Ratio	4.50%	4.50%
Tier 1 Risk-Based Capital
Actual Amount	$ 17,526	$ 14,819
Actual Ratio	19.20%	20.70%
Minimum to be Well Capitalized Amount	$ 7,285	$ 5,722
Minimum to be Well Capitalized Ratio	8.00%	8.00%
Minimum Capital Requirement Amount	$ 5,464	$ 4,291
Minimum Capital Requirement Ratio	6.00%	6.00%
Total Risk-Based Capital
Actual Amount	$ 17,558	$ 14,837
Actual Ratio	19.30%	20.70%
Minimum to be Well Capitalized Amount	$ 9,106	$ 7,152
Minimum to be Well Capitalized Ratio	10.00%	10.00%
Minimum Capital Requirement Amount	$ 7,285	$ 5,722
Minimum Capital Requirement Ratio	8.00%	8.00%
Tier 1 Leverage
Actual Amount	$ 17,526	$ 14,819
Actual Ratio	5.50%	7.10%
Minimum to be Well Capitalized Amount	$ 15,979	$ 10,486
Minimum to be Well Capitalized Ratio	5.00%	5.00%
Minimum Capital Requirement Amount	$ 12,783	$ 8,389
Minimum Capital Requirement Ratio	4.00%	4.00%
Supplemental Leverage Ratio
Actual Amount	$ 17,526	$ 14,819
Actual Ratio	5.40%	6.80%
Minimum Capital Requirement Amount	$ 9,763	$ 6,497
Minimum Capital Requirement Ratio	3.00%	3.00%

Regulatory Requirements (Narrat

Regulatory Requirements (Narrative) (Details) - USD ($) $ in Millions		Jan. 05, 2021	Jan. 04, 2021	Dec. 31, 2020	Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Schwab Bank's average reserve requirement					$ 1,500
Total assets	[1]			$ 549,009	294,005
Cash and investments required to be segregated and on deposit for regulatory purposes				39,200	$ 23,000
Reserve Deposit [Member] | Subsequent Event [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Net amount of segregated cash deposited into segregated reserve bank accounts		$ 4,800
Charles Schwab Premier Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets				31,600
Trust Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total assets				12,500
TDAC [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash and investments required to be segregated and on deposit for regulatory purposes				$ 14,500
TDAC [Member] | Reserve Deposit [Member] | Subsequent Event [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Withdraw of cash and qualified securities from its segregated reserve accounts			$ 164
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.

Regulatory Requirements (Net Ca

Regulatory Requirements (Net Capital and Net Capital Requirements for CS&Co) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Net capital	$ 3,117,000	$ 3,700,000
Broker-Dealer, Minimum Net Capital Required, Aggregate Indebtedness Standard	1,000	250
2% of Aggregate Debit Balances	616,000	446,000
Net capital in excess of required net capital	2,501,000	$ 3,254,000
TDAC [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Net capital	4,040,000
Broker-Dealer, Minimum Net Capital Required, Aggregate Indebtedness Standard	1,500
2% of Aggregate Debit Balances	748,000
Net capital in excess of required net capital	3,292,000
TD Ameritrade [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Net capital	350,000
Broker-Dealer, Minimum Net Capital Required, Aggregate Indebtedness Standard	250
2% of Aggregate Debit Balances	0
Net capital in excess of required net capital	$ 350,000

Segment Information (Narrative)

Segment Information (Narrative) (Details)	12 Months Ended
	Dec. 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								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Net Revenues
Net interest revenue	[1]									$ 6,113		$ 6,516		$ 5,823
Other revenue	[1]									332		242		178
Total net revenues		$ 4,176	$ 2,448	$ 2,450	$ 2,617	$ 2,606	$ 2,711	$ 2,681	$ 2,723	11,691	[1]	10,721	[1]	10,132	[1]
Total expenses excluding interest		$ 2,700	$ 1,559	$ 1,562	$ 1,570	$ 1,494	$ 1,475	$ 1,445	$ 1,459	7,391	[1]	5,873	[1]	5,570	[1]
Income before taxes on income	[1]									4,300		4,848		4,562
Capital expenditures										741		753		576
Depreciation and amortization										414		322		277
Amortization of acquired intangible assets	[1]									190		27		29
Investor Services [Member]
Net Revenues
Net interest revenue										4,391		4,685		4,341
Other revenue										262		146		116
Total net revenues										8,608		7,623		7,321
Total expenses excluding interest										5,529		4,284		4,145
Income before taxes on income										3,079		3,339		3,176
Capital expenditures										535		507		390
Depreciation and amortization										288		216		158
Amortization of acquired intangible assets										149		26		28
Advisor Services [Member]
Net Revenues
Net interest revenue										1,722		1,831		1,482
Other revenue										70		96		62
Total net revenues										3,083		3,098		2,811
Total expenses excluding interest										1,862		1,589		1,425
Income before taxes on income										1,221		1,509		1,386
Capital expenditures										206		246		186
Depreciation and amortization										126		106		119
Amortization of acquired intangible assets										41		1		1
Asset Management and administration fees [Member]
Net Revenues
Revenues from contracts with customers	[1],[2]									3,475		3,211		3,229
Asset Management and administration fees [Member] | Investor Services [Member]
Net Revenues
Revenues from contracts with customers										2,544		2,289		2,260
Asset Management and administration fees [Member] | Advisor Services [Member]
Net Revenues
Revenues from contracts with customers										931		922		969
Trading revenue [Member]
Net Revenues
Revenues from contracts with customers	[1]									1,416		752		902
Trading revenue [Member] | Investor Services [Member]
Net Revenues
Revenues from contracts with customers										1,156		503		604
Trading revenue [Member] | Advisor Services [Member]
Net Revenues
Revenues from contracts with customers										260		249		298
Bank Deposit Account Fees [Member]
Net Revenues
Revenues from contracts with customers	[1]									355		0		0
Bank Deposit Account Fees [Member] | Investor Services [Member]
Net Revenues
Revenues from contracts with customers										255		0		0
Bank Deposit Account Fees [Member] | Advisor Services [Member]
Net Revenues
Revenues from contracts with customers										$ 100		$ 0		$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Includes fee waivers of $127 million for the year ended December 31, 2020.

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income		$ 1,135	$ 698	$ 671	$ 795	$ 852	$ 951	$ 937	$ 964	$ 3,299	[1]	$ 3,704	[1]	$ 3,507	[1]
Preferred stock dividends and other	[1],[2]									(256)		(178)		(178)
Net Income Available to Common Stockholders		$ 1,050	$ 615	$ 621	$ 757	$ 801	$ 913	$ 887	$ 925	$ 3,043	[1]	$ 3,526	[1]	$ 3,329	[1]
Weighted Average Common Shares Outstanding - Basic (in shares)		1,848,000	1,289,000	1,288,000	1,287,000	1,284,000	1,300,000	1,328,000	1,333,000	1,429,000	[1]	1,311,000	[1]	1,348,000	[1]
Basic EPS (USD per share)		$ 0.57	$ 0.48	$ 0.48	$ 0.59	$ 0.62	$ 0.70	$ 0.67	$ 0.69	$ 2.13	[1],[3]	$ 2.69	[1],[3]	$ 2.47	[1],[3]
Weighted Average Common Shares Outstanding - Diluted (in shares)		1,855,000	1,294,000	1,294,000	1,294,000	1,293,000	1,308,000	1,337,000	1,344,000	1,435,000	[1]	1,320,000	[1]	1,361,000	[1]
Diluted EPS (USD per share)		$ 0.57	$ 0.48	$ 0.48	$ 0.58	$ 0.62	$ 0.70	$ 0.66	$ 0.69	$ 2.12	[1],[3]	$ 2.67	[1],[3]	$ 2.45	[1],[3]
Antidilutive stock options and restricted stock units excluded from the calculation of diluted EPS (in shares)										22,000		21,000		18,000
Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income										$ 3,255		$ 3,704		$ 3,507
Preferred stock dividends and other										(253)		(178)		(178)
Net Income Available to Common Stockholders										$ 3,002		$ 3,526		$ 3,329
Weighted Average Common Shares Outstanding - Basic (in shares)										1,410,000		1,311,000		1,348,000
Basic EPS (USD per share)										$ 2.13		$ 2.69		$ 2.47
Reallocation of net income available to common stockholders as a result of conversion of nonvoting to voting shares										$ 41
Allocation of net income available to common stockholders:										$ 3,043		$ 3,526		$ 3,329
Conversion of nonvoting shares to voting shares (in shares)										19,000
Common stock equivalent shares related to stock incentive plans (shares)										6,000		9,000		13,000
Weighted Average Common Shares Outstanding - Diluted (in shares)										1,435,000		1,320,000		1,361,000
Diluted EPS (USD per share)										$ 2.12		$ 2.67		$ 2.45
Nonvoting Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income										$ 44
Preferred stock dividends and other										(3)
Net Income Available to Common Stockholders										$ 41
Weighted Average Common Shares Outstanding - Basic (in shares)										19,000
Basic EPS (USD per share)										$ 2.13
Reallocation of net income available to common stockholders as a result of conversion of nonvoting to voting shares										$ 0
Allocation of net income available to common stockholders:										$ 41
Conversion of nonvoting shares to voting shares (in shares)										0
Common stock equivalent shares related to stock incentive plans (shares)										0
Weighted Average Common Shares Outstanding - Diluted (in shares)										19,000
Diluted EPS (USD per share)										$ 2.12
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units.
[3]	For the year ended December 31, 2020, the Company had voting and nonvoting common stock outstanding. As the participation rights, including dividend and liquidation rights, are identical between the voting and nonvoting stock classes, basic and diluted earnings per share are the same for each class. See Notes 19 and 25 for additional information.

The Charles Schwab Corporatio_3

The Charles Schwab Corporation – Parent Company Only Financial Statements (Condensed Statements of Income) (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Condensed Income Statements, Captions [Line Items]
Interest revenue	[1]									$ 6,531		$ 7,580		$ 6,680
Interest expense	[1]									(418)		(1,064)		(857)
Net interest revenue	[1]									6,113		6,516		5,823
Other revenue	[1]									332		242		178
Professional services	[1]									(843)		(702)		(654)
Other expenses excluding interest		$ (2,700)	$ (1,559)	$ (1,562)	$ (1,570)	$ (1,494)	$ (1,475)	$ (1,445)	$ (1,459)	(7,391)	[1]	(5,873)	[1]	(5,570)	[1]
Income tax benefit/(expense)	[1]									(1,001)		(1,144)		(1,055)
Equity in net income of subsidiaries:
Net Income		1,135	698	671	795	852	951	937	964	3,299	[1]	3,704	[1]	3,507	[1]
Preferred stock dividends and other	[1],[2]									256		178		178
Net Income Available to Common Stockholders		$ 1,050	$ 615	$ 621	$ 757	$ 801	$ 913	$ 887	$ 925	3,043	[1]	3,526	[1]	3,329	[1]
Trading revenue [Member]
Condensed Income Statements, Captions [Line Items]
Revenues from contracts with customers	[1]									1,416		752		902
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Interest revenue										38		119		88
Interest expense										(273)		(248)		(184)
Net interest revenue										(235)		(129)		(96)
Other revenue										(1)		(1)		1
Professional services										(68)		(24)		(6)
Other expenses excluding interest										(85)		(83)		(79)
Loss before income tax benefit and equity in net income of subsidiaries										(388)		(237)		(180)
Income tax benefit/(expense)										45		(9)		20
Loss before equity in net income of subsidiaries										(343)		(246)		(160)
Equity in net income of subsidiaries:
Equity in undistributed net income/(distributions in excess of net income) of subsidiaries										2,476		(1,198)		2,590
Dividends from bank subsidiaries										0		4,915		750
Dividends from non-bank subsidiaries										1,166		233		327
Net Income										3,299		3,704		3,507
Preferred stock dividends and other										256		178		178
Net Income Available to Common Stockholders										3,043		3,526		3,329
Parent Company [Member] | Trading revenue [Member]
Condensed Income Statements, Captions [Line Items]
Revenues from contracts with customers										$ 1		$ 0		$ 0
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units.

The Charles Schwab Corporatio_4

The Charles Schwab Corporation – Parent Company Only Financial Statements (Condensed Balance Sheets) (Details) - USD ($) $ in Millions		Dec. 31, 2020		Jan. 01, 2020	Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	[2]	$ 40,348	[1]		$ 29,345	[1]	$ 27,938
Available for sale securities	[1]	337,400			61,422
Held to maturity securities		0	[1]	$ 134,700	134,706	[1]
Other assets	[1]	7,783			4,587
Total assets	[1]	549,009			294,005
Liabilities and Stockholders’ Equity
Accrued expenses and other liabilities	[1]	17,094			5,516
Long-term debt	[1]	13,632			7,430
Total liabilities	[1]	492,949			272,260
Stockholders’ equity		56,060	[1]		21,745	[1]	$ 20,670	$ 18,525
Total liabilities and stockholders’ equity	[1]	549,009			294,005
Parent Company [Member]
Assets
Cash and cash equivalents		4,654			2,839
Receivables from subsidiaries		1,260			1,085
Available for sale securities		4,982			1,743
Held to maturity securities		0			224
Investment in non-bank subsidiaries		29,550			7,090
Investment in bank subsidiaries		25,548			16,325
Other assets		371			304
Total assets		66,365			29,610
Liabilities and Stockholders’ Equity
Accrued expenses and other liabilities		458			430
Payables to subsidiaries		34			5
Long-term debt		9,813			7,430
Total liabilities		10,305			7,865
Stockholders’ equity		56,060			21,745
Total liabilities and stockholders’ equity		$ 66,365			$ 29,610
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 23.

The Charles Schwab Corporatio_5

The Charles Schwab Corporation – Parent Company Only Financial Statements (Condensed Statements of Cash Flows) (Details) - USD ($) $ in Millions		3 Months Ended										12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020		Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Cash Flows from Operating Activities
Net income		$ 1,135	$ 698	$ 671	$ 795		$ 852	$ 951	$ 937	$ 964		$ 3,299	[1]	$ 3,704	[1]	$ 3,507	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Other	[2]											349		199		137
Net change in:
Other assets	[2]											4		(709)		(8)
Accrued expenses and other liabilities	[2]											2,852		(241)		613
Net cash provided by (used for) operating activities	[2]											6,852		9,325		12,456
Cash Flows from Investing Activities
Purchases of available for sale securities	[2]											(202,171)		(31,815)		(32,801)
Proceeds from sales of available for sale securities	[2]											4,801		24,495		115
Principal payments on available for sale securities	[2]											63,247		21,616		16,016
Other investing activities	[2]											15		(56)		(96)
Net cash provided by (used for) investing activities	[2]											(125,851)		11,964		(40,555)
Cash Flows from Financing Activities
Issuance of long-term debt	[2]											3,070		593		3,024
Repayment of long-term debt	[2]											(700)		0		(909)
Repurchases of common stock	[2]											0		(2,220)		(1,000)
Net proceeds from preferred stock offerings	[2]											4,940		0		0
Dividends paid	[2]											(1,280)		(1,060)		(787)
Proceeds from stock options exercised	[2]											79		118		125
Other financing activities	[2]											(55)		(41)		(54)
Net cash provided by (used for) financing activities	[2]											143,982		(13,939)		47,166
Increase (Decrease) in Cash and Cash Equivalents	[2]											24,983		7,350		19,067
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Year	[2]				45,577	[3]				38,227	[3]	45,577	[3]	38,227	[3]	19,160
Cash and Cash Equivalents, including Amounts Restricted at End of Year	[2],[3]	70,560					45,577					70,560		45,577		38,227
Parent Company [Member]
Cash Flows from Operating Activities
Net income												3,299		3,704		3,507
Adjustments to reconcile net income to net cash provided by operating activities:
Dividends in excess of (equity in undistributed) earnings of subsidiaries												(2,476)		1,198		(2,590)
Other												41		9		13
Net change in:
Other assets												(65)		57		(5)
Accrued expenses and other liabilities												34		34		28
Net cash provided by (used for) operating activities												833		5,002		953
Cash Flows from Investing Activities
Due from (to) subsidiaries — net												46		(122)		408
Increase in investments in subsidiaries												(2,172)		(1,783)		(1,188)
Repayments (Advances) of subordinated loan to CS&Co												0		185		(185)
Purchases of available for sale securities												(5,397)		(1,141)		(1,751)
Proceeds from sales of available for sale securities												2		181		0
Principal payments on available for sale securities												2,395		994		573
Other investing activities												0		0		(5)
Net cash provided by (used for) investing activities												(5,126)		(1,686)		(2,148)
Cash Flows from Financing Activities
Issuance of long-term debt												3,070		593		3,024
Repayment of long-term debt												(700)		0		(900)
Repurchases of common stock												0		(2,220)		(1,000)
Net proceeds from preferred stock offerings												4,940		0		0
Dividends paid												(1,280)		(1,060)		(787)
Proceeds from stock options exercised												79		118		125
Other financing activities												(1)		0		0
Net cash provided by (used for) financing activities												6,108		(2,569)		462
Increase (Decrease) in Cash and Cash Equivalents												1,815		747		(733)
Cash and Cash Equivalents, including Amounts Restricted at Beginning of Year					$ 2,839					$ 2,092		2,839		2,092		2,825
Cash and Cash Equivalents, including Amounts Restricted at End of Year		$ 4,654					$ 2,839					$ 4,654		$ 2,839		$ 2,092
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[3]	For more information on the nature of restrictions on restricted cash and cash equivalents, see Note 23.

Quarterly Financial Informati_3

Quarterly Financial Information (Unaudited) (Schedule of Quarterly Financial Information) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Total net revenues	$ 4,176	$ 2,448	$ 2,450	$ 2,617	$ 2,606	$ 2,711	$ 2,681	$ 2,723	$ 11,691	[1]	$ 10,721	[1]	$ 10,132	[1]
Total expenses excluding interest	2,700	1,559	1,562	1,570	1,494	1,475	1,445	1,459	7,391	[1]	5,873	[1]	5,570	[1]
Net income	1,135	698	671	795	852	951	937	964	3,299	[1]	3,704	[1]	3,507	[1]
Net income available to common stockholders	$ 1,050	$ 615	$ 621	$ 757	$ 801	$ 913	$ 887	$ 925	$ 3,043	[1]	$ 3,526	[1]	$ 3,329	[1]
Weighted Average Common Shares Outstanding - Basic (in shares)	1,848	1,289	1,288	1,287	1,284	1,300	1,328	1,333	1,429	[1]	1,311	[1]	1,348	[1]
Weighted Average Common Shares Outstanding - Diluted (in shares)	1,855	1,294	1,294	1,294	1,293	1,308	1,337	1,344	1,435	[1]	1,320	[1]	1,361	[1]
Basic (USD per share)	$ 0.57	$ 0.48	$ 0.48	$ 0.59	$ 0.62	$ 0.70	$ 0.67	$ 0.69	$ 2.13	[1],[2]	$ 2.69	[1],[2]	$ 2.47	[1],[2]
Diluted (USD per share)	0.57	0.48	0.48	0.58	0.62	0.70	0.66	0.69	2.12	[1],[2]	2.67	[1],[2]	2.45	[1],[2]
Dividends Declared Per Common Share (USD per share)	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.72		$ 0.68		$ 0.46
[1]	Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.
[2]	For the year ended December 31, 2020, the Company had voting and nonvoting common stock outstanding. As the participation rights, including dividend and liquidation rights, are identical between the voting and nonvoting stock classes, basic and diluted earnings per share are the same for each class. See Notes 19 and 25 for additional information.