Amount of minimum lease payments to be received by the lessor for capital leases in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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Amount of minimum lease payments to be received by the lessor for capital leases after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments to be received by the lessor for capital leases in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments to be received by the lessor for capital leases in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments to be received by the lessor for capital leases in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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Loans and Loans Held for Sale - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Minimum future lease payment to be received, 2018	$ 1,000
Minimum future lease payment to be received, 2019	860
Minimum future lease payment to be received, 2020	614
Minimum future lease payment to be received, 2021	398
Minimum future lease payment to be received, 2022	249
Minimum future lease payment to be received, subsequent years	467
Allowance related to lease financing receivables	893	$ 882	$ 824	$ 823
Continuing Operations [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance related to lease financing receivables	877	858	796	794
Continuing Operations [Member] \| Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance related to lease financing receivables	735	716	656	623
Continuing Operations [Member] \| Commercial Loans [Member] \| Commercial Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance related to lease financing receivables	$ 43	$ 42	$ 47	$ 56