Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Revenue from External Customer [Line Items]
Revenue	$ 3,349	$ 3,348
UNITED STATES
Revenue from External Customer [Line Items]
Revenue	1,681	1,750
UNITED KINGDOM
Revenue from External Customer [Line Items]
Revenue	415	425
GERMANY
Revenue from External Customer [Line Items]
Revenue	416	386
Other countries
Revenue from External Customer [Line Items]
Revenue	$ 837	$ 787

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details