Finance Receivables Activity in Allowance for Commercial Loan Losses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Provision for Loan, Lease, and Other Losses	$ 135
Commercial Finance Receivables
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Financing Receivable, Allowance for Credit Losses	51
Provision for Loan, Lease, and Other Losses	(2)
Financing Receivable, Allowance for Credit Losses, Recovery	0
Financing Receivable, Allowance for Credit Losses, Write-downs	0
Financing Receivable, Allowance for Credit Losses	49
North America Segment [Member] | Commercial Finance Receivables
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Financing Receivable, Allowance for Credit Losses	17	6
Provision for Loan, Lease, and Other Losses	(1)	5
Financing Receivable, Allowance for Credit Losses, Recovery	0	0
Financing Receivable, Allowance for Credit Losses, Write-downs	0	0
Financing Receivable, Allowance for Credit Losses	16	11
International Segment [Member] | Commercial Finance Receivables
Accounts Notes And Loans Receivable Rollforward [Roll Forward]
Financing Receivable, Allowance for Credit Losses	34
Provision for Loan, Lease, and Other Losses	(1)
Financing Receivable, Allowance for Credit Losses, Recovery	0
Financing Receivable, Allowance for Credit Losses, Write-downs	0
Financing Receivable, Allowance for Credit Losses	$ 33