Guarantor Consolidating Financial Statements Restatement Tables - Guarantor / Non-Guarantor (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Financial Services Revenue	$ 647	$ 404	$ 1,062	$ 762
Equity In Income Of Affiliates
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	264	217	434	398
Income Tax Expense (Benefit)	86	80	150	149
Net Income (Loss) Attributable to Parent	178	137	284	249
Notes, Loans and Financing Receivable, Net	22,945		22,945		10,998
Assets	30,585		30,585		16,197
Due to Affiliate
Liabilities	24,683		24,683		11,818
Additional Paid in Capital, Common Stock	4,763		4,763		3,459
Retained Earnings (Accumulated Deficit)	1,207		1,207		923
Stockholders' Equity Attributable to Parent	5,902		5,902		4,379
Net Cash Provided by (Used in) Operating Activities			701	582
Payments to Acquire Receivables			3,812	2,870
Net Proceeds From the Sale of Receivables
Investment in Affiliates - Net Change
Net Cash Provided by (Used in) Investing Activities			(4,503)	(1,313)
Increase (Decrease) Due from Affiliates
Net Cash Provided by (Used in) Financing Activities			4,288	1,111
Liabilities and Equity	30,585		30,585		16,197
Non-Guarantor Subsidiaries [Member]
Financial Services Revenue	617	370	993	693
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	305	268	530	502
Income Tax Expense (Benefit)	100	97	181	182
Net Income (Loss) Attributable to Parent	205	171	349	320
Notes, Loans and Financing Receivable, Net	22,258		22,258		9,440
Due from Affiliates
Assets	27,724		27,724		12,179
Due to Affiliate	2,743		2,743		394
Liabilities	22,462		22,462		9,946
Additional Paid in Capital, Common Stock	2,632		2,632		123
Retained Earnings (Accumulated Deficit)	1,877		1,877		1,527
Stockholders' Equity Attributable to Parent	5,262		5,262		2,233
Net Cash Provided by (Used in) Operating Activities			431	390
Payments to Acquire Receivables			4,222	2,748
Net Cash Provided by (Used in) Investing Activities			(2,744)	(1,085)
Increase (Decrease) Due from Affiliates			(2,354)	(1,781)
Net Cash Provided by (Used in) Financing Activities			3,001	682
Liabilities and Equity	27,724		27,724		12,179
Consolidation, Eliminations [Member]
Equity In Income Of Affiliates	(345)	(311)	(604)	(578)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(345)	(311)	(604)	(578)
Net Income (Loss) Attributable to Parent	(345)	(311)	(604)	(578)
Due from Affiliates	(5,104)		(5,104)		(2,063)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(8,758)		(8,758)		(5,467)
Assets	(13,862)		(13,862)		(7,530)
Due to Affiliate	(5,104)		(5,104)		(2,063)
Liabilities	(5,104)		(5,104)		(2,063)
Additional Paid in Capital, Common Stock	(2,711)		(2,711)		(202)
Retained Earnings (Accumulated Deficit)	(5,298)		(5,298)		(4,693)
Stockholders' Equity Attributable to Parent	(8,758)		(8,758)		(5,467)
Net Cash Provided by (Used in) Operating Activities
Payments to Acquire Receivables			(3,105)	(2,748)
Proceeds from sale of consumer finance receivables, net			(3,105)
Net Proceeds From the Sale of Receivables				(2,748)
Investment in Affiliates - Net Change			(126)	2,210
Net Cash Provided by (Used in) Investing Activities			989	(2,210)
Increase (Decrease) Due from Affiliates			862
Net Cash Provided by (Used in) Financing Activities			(992)	2,210
Liabilities and Equity	(13,862)		(13,862)		(7,530)
Guarantor Subsidiaries [Member]
Financial Services Revenue	30	34	69	69
Equity In Income Of Affiliates	158	170	304	319
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	127	126	228	230
Income Tax Expense (Benefit)	(13)	(14)	(27)	(28)
Net Income (Loss) Attributable to Parent	140	140	255	258
Notes, Loans and Financing Receivable, Net	687		687		1,558
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	2,602		2,602		2,193
Assets	5,116		5,116		4,997
Due to Affiliate	1,498		1,498		1,669
Liabilities	1,620		1,620		1,763
Additional Paid in Capital, Common Stock	79		79		79
Retained Earnings (Accumulated Deficit)	3,421		3,421		3,166
Stockholders' Equity Attributable to Parent	3,496		3,496		3,234
Net Cash Provided by (Used in) Operating Activities			184	98
Payments to Acquire Receivables			2,695	2,870
Proceeds from sale of consumer finance receivables, net			3,105
Net Proceeds From the Sale of Receivables				2,748
Investment in Affiliates - Net Change			97	(2,210)
Net Cash Provided by (Used in) Investing Activities			(172)	1,989
Increase (Decrease) Due from Affiliates			211	1,694
Net Cash Provided by (Used in) Financing Activities			(211)	(1,694)
Liabilities and Equity	$ 5,116		$ 5,116		$ 4,997