Long-term Corporate Debt and Borrowing Arrangements - Schedule of Committed Credit Facilities (Detail) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($)
Line of Credit Facility [Line Items]
Outstanding Borrowings	$ 13,861
Available Capacity	1,931
Debt Insturments
Line of Credit Facility [Line Items]
2023	27
2024	346
2025	291
2026	396
2027	1,867
Thereafter	1,788
Long-term debt	$ 4,715
Line of Credit \| London Interbank Offered Rate (LIBOR) \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis points	1.75%
Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Total Capacity	$ 2,000
Outstanding Borrowings	0
Letters of Credit Issued	966
Available Capacity	$ 1,034

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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