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Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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The amount of ownership interest of different classes of partners in limited partnership.

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Background and Summary of Significant Accounting Policies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) reporting_unit segment numberOfSegment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Description of Business
Number of reportable segments \| numberOfSegment	1
Bank overdrafts	$ 0	$ 0
Accounts receivable, period past due	30 days
Number of reporting units \| reporting_unit	1
Number of operating segments \| segment	1
Income tax expense (benefit)	$ 256	197	$ 221
Member's equity
Description of Business
Partners' capital	$ 7,142	$ 13,360	13,139	$ 13,724
Cumulative Effect, Period of Adoption, Adjustment \| Member's equity
Description of Business
Partners' capital				(3)
Income tax expense (benefit)			$ (2)	$ (2)
Capitalized software
Description of Business
Finite-lived intangible assets, useful life	7 years
Other
Description of Business
Finite-lived intangible assets, useful life	5 years
Minimum
Description of Business
Contract term	1 year
Minimum \| Customer relationships
Description of Business
Finite-lived intangible assets, useful life	7 years
Maximum
Description of Business
Contract term	5 years
Period company may receive up front payments for services to be provided in the future (in years)	20 years
Maximum \| Customer relationships
Description of Business
Finite-lived intangible assets, useful life	14 years
Weighted Average \| Consumer Customers
Description of Business
Length of customer life	34 months