Financing Receivables (Gross And Net Lease Investment) (Detail) - Energy Holdings [Member] - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Schedule of Financial Receivables [Line Items]
Lease Receivables (net of Non-Recourse Debt)	$ 200	$ 223
Unearned and Deferred Income	(58)	(62)
Gross Investments in Leases	142	161
Deferred Tax Liabilities	(34)	(36)
Net Investments in Leases	$ 108	$ 125

Leveraged Leases Gross Investment

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- Definition

Schedule of Financial Receivables [Line Items]

+ References

No definition available.

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- Definition

The estimated portion of pretax income and investment tax credit remaining to be allocated to income over the lease term.

+ References

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- Definition

Taxes arising from arrangements meeting the criteria for classification as leveraged leases due to timing differences between accounting and tax income recognition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The net investment in arrangements meeting the criteria for classification as leveraged leases including deferred taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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- Definition

This element represents leveraged lease rentals receivable, net of that portion of the rental applicable to principal and interest on the nonrecourse debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 50
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