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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2024
Significant Accounting Policies [Abstract]  
Schedule Of Securities Segregated For Regulatory Purposes

December 31,

2024

2023

(in millions)

U.S. and foreign government securities

$

6,460

$

5,684

Municipal securities

33

70

Securities purchased under agreements to resell 1

21,353

29,632

$

27,846

$

35,386

___________________________

(1)These balances are collateralized by U.S. government securities.

Composition Of Investment

December 31,

2024

2023

(in millions)

Equity method investments 1

$

172

$

142

Investments in equity securities at adjusted cost 2

29

22

Investments in equity securities at fair value 2

32

44

Investments in exchange memberships and equity securities of certain exchanges 2

2

2

$

235

$

210

______________________

(1)The Company’s share of income or losses is included in “Other income” in the consolidated statements of comprehensive income.

(2)These investments do not qualify for the equity method of accounting. Dividends received are included in “Other income” in the consolidated statements of comprehensive income.

Summary Of Early Adoption On Safeguard Crypto Assets

December 31, 2023 1

As Reported

Adjustment

As Adjusted

(in millions)

Assets

Other assets

$

1,127

$

(172)

$

955

Total assets

$

128,423

$

(172)

$

128,251

Liabilities

Accounts payable, accrued expenses and other liabilities

$

676

$

(172)

$

504

Total payables

$

102,799

$

(172)

$

102,627

Total liabilities

$

114,356

$

(172)

$

114,184

Total liabilities and equity

$

128,423

$

(172)

$

128,251

______________________

(1)For the consolidated statements of cash flow, the Company considered the change in the crypto-asset safeguarding asset and the crypto-asset safeguarding liability to be non-cash items and were not included in the change in “Other assets” and “Other payables” lines in the consolidated statements of cash flows. As a result, there is no impact to periods prior to the year ended December 31, 2023.