Finance Assets (Allowance for Credit Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	$ 36,949	$ 40,094	$ 63,430
Amounts charged to expense	17,075	20,054	7,451
Accounts written off	(25,914)	(23,199)	(30,787)
Balance at	28,110	36,949	40,094
North America | Sales-type Lease Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	14,165	16,979	28,661
Amounts charged to expense	4,346	4,584	2,276
Accounts written off	(8,230)	(7,398)	(13,958)
Balance at	10,281	14,165	16,979
North America | Loan Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	11,165	12,322	20,272
Amounts charged to expense	10,237	9,663	3,278
Accounts written off	(10,490)	(10,820)	(11,228)
Balance at	10,912	11,165	12,322
International | Sales-type Lease Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	9,703	8,662	12,039
Amounts charged to expense	866	4,553	994
Accounts written off	(5,440)	(3,512)	(4,371)
Balance at	5,129	9,703	8,662
International | Loan Receivables
Allowance for Loan and Lease Losses [Roll Forward]
Balance at	1,916	2,131	2,458
Amounts charged to expense	1,626	1,254	903
Accounts written off	(1,754)	(1,469)	(1,230)
Balance at	$ 1,788	$ 1,916	$ 2,131