Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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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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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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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.

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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.

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

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Borrowings and Credit Agreements - Short-term Borrowings (Details) - USD ($)								1 Months Ended	12 Months Ended
	Dec. 10, 2024	May 09, 2024	Mar. 25, 2024	Jun. 02, 2023	May 02, 2023	May 01, 2023	Feb. 21, 2023	Feb. 28, 2023	Dec. 31, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Short-term debt									$ 2,119,000,000	$ 200,000,000
Proceeds from debt	$ 3,000,000,000	$ 5,000,000,000		$ 4,900,000,000		$ 5,000,000,000	$ 6,000,000,000	$ 6,000,000,000
Federal Home Loan Bank advances maximum amount available									1,200,000,000
Commercial Paper
Short-term Debt [Line Items]
Short-term debt									$ 2,100,000,000	$ 200,000,000
Short-term debt, weighted average interest rate									4.98%	4.31%
Line of Credit \| Back-Up Credit Facilities
Short-term Debt [Line Items]
Short-term debt									$ 0	$ 0
Commitment fee percentage									0.03%
Line of Credit \| Revolving Credit Facility, Expiring May 11, 2027
Short-term Debt [Line Items]
Maximum borrowing capacity									$ 2,500,000,000
Debt instrument term									5 years
Line of Credit \| Revolving Credit Facility, Expiring May 16, 2028
Short-term Debt [Line Items]
Maximum borrowing capacity									$ 2,500,000,000
Debt instrument term									5 years
Line of Credit \| Revolving Credit Facility, Expiring May 16, 2029
Short-term Debt [Line Items]
Maximum borrowing capacity									$ 2,500,000,000
Debt instrument term									5 years
Loans Payable \| 364-day Term Loan Agreement
Short-term Debt [Line Items]
Short-term debt		$ 0
Debt instrument term			364 days			364 days
Debt face amount			$ 3,000,000,000			$ 5,000,000,000
Proceeds from debt					$ 5,000,000,000
Debt interest rate					6.20%
Federal Home Loan Bank Advances
Short-term Debt [Line Items]
Short-term debt									$ 0	$ 0