The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Interest and fee income derived from loans not otherwise specified in the existing taxonomy.

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-Topic 942

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Amount of the cost of borrowed funds accounted for as interest expense.

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Operating Segments, Depreciation, Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									$ 6,859	$ 7,313	$ 6,901
Income Tax Expense (Benefit)	109us-gaap_IncomeTaxExpenseBenefit	47us-gaap_IncomeTaxExpenseBenefit	(216)us-gaap_IncomeTaxExpenseBenefit	198us-gaap_IncomeTaxExpenseBenefit	(1,092)us-gaap_IncomeTaxExpenseBenefit	3us-gaap_IncomeTaxExpenseBenefit	13us-gaap_IncomeTaxExpenseBenefit	84us-gaap_IncomeTaxExpenseBenefit	138us-gaap_IncomeTaxExpenseBenefit	(992)us-gaap_IncomeTaxExpenseBenefit	521us-gaap_IncomeTaxExpenseBenefit
Interest On Loans									17,324us-gaap_InterestAndFeeIncomeOtherLoans	17,951us-gaap_InterestAndFeeIncomeOtherLoans	18,843us-gaap_InterestAndFeeIncomeOtherLoans
Interest Expense									8,397us-gaap_InterestExpense	9,267us-gaap_InterestExpense	11,596us-gaap_InterestExpense
CLL [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									4,052	4,225	4,262
Income Tax Expense (Benefit)									701	143	742
Interest On Loans									4,065	4,510	5,121
Interest Expense									3,308	3,558	4,515
Consumer [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									251	242	228
Income Tax Expense (Benefit)									736	(7)	1,141
Interest On Loans									11,849	11,855	11,631
Interest Expense									2,611	2,669	3,294
Real Estate [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									371	452	639
Income Tax Expense (Benefit)									(224)	(472)	(562)
Interest On Loans									938	1,036	1,494
Interest Expense									1,079	1,278	1,883
Energy Financial Services [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									142	66	64
Income Tax Expense (Benefit)									(193)	(141)	(186)
Interest On Loans									79	125	136
Interest Expense									564	577	675
GECAS [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									2,352	2,655	2,065
Income Tax Expense (Benefit)									(78)	(106)	5
Interest On Loans									305	344	398
Interest Expense									1,381	1,406	1,520
Corporate Items And Eliminations [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									94	98	90
Income Tax Expense (Benefit)									(804)	(409)	(619)
Interest On Loans									88	81	63
Interest Expense									$ (546)	$ (221)	$ (291)