Finance Receivables - Commercial Finance Receivables (Details) (Commercial Finance Receivables [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Balance at beginning of period	$ 6,700us-gaap_NotesReceivableGross	$ 560us-gaap_NotesReceivableGross
International operations acquisition		4,834
Net funding (collections) of commercial finance receivables	1,889	1,178
Charge-offs	0	(5)
Foreign currency translation	(517)	133
Balance at end of period	8,072us-gaap_NotesReceivableGross	6,700us-gaap_NotesReceivableGross
North America Segment [Member]
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Balance at beginning of period	1,975	560	0
International operations acquisition		0	0
Net funding (collections) of commercial finance receivables	1,228	1,424	560
Charge-offs	0	(2)	0
Foreign currency translation	(23)	(7)	0
Balance at end of period	3,180	1,975	560
International Segment [Member]
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Balance at beginning of period	4,725	0
International operations acquisition		4,834
Net funding (collections) of commercial finance receivables	661	(246)
Charge-offs	0	(3)
Foreign currency translation	(494)	140
Balance at end of period	$ 4,892	$ 4,725

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Finance Receivables, Translation Adjustment

+ References

No definition available.

+ Details

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- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationAcquiredReceivablesFairValue
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Balance Type:	debit
Period Type:	instant

- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ 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)(3)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

+ Details

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- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Subparagraph 3

-Article 9

+ Details

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- Definition

The cash inflow associated with the collection of receivables arising from the financing of goods and services.

+ References

No definition available.

+ Details

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