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Financing Receivables (Gross And Net Lease Investment) (Detail) - Energy Holdings [Member] - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
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Schedule of Financial Receivables [Line Items] |  |
Lease Receivables (net of Non-Recourse Debt) | $ 545 | $ 546
Estimated Residual Value of Leased Assets | 326 | 326
Total Investment in Rental Receivables | 871 | 872
Unearned and Deferred Income | (303) | (307)
Gross Investment in Leases | 568 | 565
Deferred Tax Liabilities | (498) | (480)
Net Investment in Leases | $ 70 | $ 85

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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 30 -Paragraph 14 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=77895730&loc=d3e42840-112730 + Details
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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 35 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=77915205&loc=d3e43930-112732 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77907235&loc=d3e45152-112736 + Details
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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 30 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=77895730&loc=d3e42840-112730 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 35 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=77915205&loc=d3e43930-112732 + Details
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- Definition The gross rentals receivable equal to the future cash flows from the lessee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 25 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=77899714&loc=d3e42229-112728 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 30 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77895730&loc=d3e42840-112730 + Details
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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 30 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77895730&loc=d3e42840-112730 + Details
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- Definition The estimate of the value of the leased asset at the end of the lease term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 30 -Paragraph 14 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=77895730&loc=d3e42840-112730 + Details
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