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Short-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Short-term Debt [Line Items]
Amount outstanding at period end	$ 1,079	$ 813
Commercial Paper
Short-term Debt [Line Items]
Borrowing limit	3,550	3,550
Amount outstanding at period end	1,079	813
Average amount outstanding	928	552
Maximum amount outstanding	$ 1,241	$ 1,357
Weighted average interest rate, computed on a daily basis	4.85%	1.47%
Weighted average interest rate at period end	5.23%	4.66%

X

- Definition

The effective interest rate during the reporting period.

+ References

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-Publisher FASB
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

+ References

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- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, the maximum amount borrowed at any time during the period.

+ References

No definition available.

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