Schedule I - Condensed Financial Information of Parent (Senior Notes and Junior Subordinated Notes) (Details) (USD $) In Millions, unless otherwise specified																																																											12 Months Ended						12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2012 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2013 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2012 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2013 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2012 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2013 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2012 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2013 Senior Secured Term Loan LIBOR Plus 2.75% Due 2018	Dec. 31, 2012 Senior Secured Term Loan LIBOR Plus 2.75% Due 2018	Dec. 31, 2013 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2012 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2013 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2012 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2013 Unamortized Discounts	Dec. 31, 2012 Unamortized Discounts	Dec. 31, 2013 Recourse Debt	Dec. 31, 2012 Recourse Debt	Dec. 31, 2013 Recourse Debt 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2012 Recourse Debt 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2013 Recourse Debt 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2012 Recourse Debt 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2013 Recourse Debt 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2012 Recourse Debt 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2013 Recourse Debt 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2012 Recourse Debt 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2013 Recourse Debt 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2012 Recourse Debt 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2013 Recourse Debt 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2012 Recourse Debt 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2013 Parent Company	Dec. 31, 2012 Parent Company	Dec. 31, 2013 Parent Company 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2012 Parent Company 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2013 Parent Company 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2012 Parent Company 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2013 Parent Company 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2012 Parent Company 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2013 Parent Company 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2012 Parent Company 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2013 Parent Company Senior Secured Term Loan LIBOR Plus 2.75% Due 2018	Dec. 31, 2012 Parent Company Senior Secured Term Loan LIBOR Plus 2.75% Due 2018	Dec. 31, 2013 Parent Company Revolving Secured Credit Facility LIBOR Plus 2.25% Due 2018	Dec. 31, 2012 Parent Company Revolving Secured Credit Facility LIBOR Plus 2.25% Due 2018	Dec. 31, 2013 Parent Company 8.00% Senior Unsecured Note Due 2020	Dec. 31, 2012 Parent Company 8.00% Senior Unsecured Note Due 2020	Dec. 31, 2013 Parent Company 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2012 Parent Company 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2013 Parent Company 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2012 Parent Company 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2013 Parent Company Unamortized Discounts	Dec. 31, 2012 Parent Company Unamortized Discounts	Dec. 31, 2013 Parent Company Recourse Debt 7.75% Senior Unsecured Note Due 2014	Dec. 31, 2013 Parent Company Recourse Debt 7.75% Senior Unsecured Note Due 2015	Dec. 31, 2013 Parent Company Recourse Debt 9.75% Senior Unsecured Note Due 2016	Dec. 31, 2013 Parent Company Recourse Debt 8.00% Senior Unsecured Note Due 2017	Dec. 31, 2013 Parent Company Recourse Debt Revolving Secured Credit Facility LIBOR Plus 2.25% Due 2018	Dec. 31, 2013 Parent Company Recourse Debt 8.00% Senior Unsecured Note Due 2020	Dec. 31, 2013 Parent Company Recourse Debt 7.38% Senior Unsecured Note Due 2021	Dec. 31, 2013 Parent Company Recourse Debt 4.88% Senior Unsecured Note Due 2023	Dec. 31, 2013 Parent Company Recourse Debt Excluding Junior Subordinated Debt	Dec. 31, 2012 Parent Company Recourse Debt Excluding Junior Subordinated Debt	Dec. 31, 2013 LIBOR Recourse Debt Senior Secured Term Loan LIBOR Plus 2.75% Due 2018	Dec. 31, 2013 LIBOR Parent Company Recourse Debt Senior Secured Term Loan LIBOR Plus 2.75% Due 2018
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	$ 5,669	$ 5,962	$ 110	$ 500	$ 356	$ 500	$ 369	$ 535	$ 1,150	$ 1,500	$ 799	$ 807	$ 1,000	$ 1,000	$ 750	$ 0	$ (7)	$ (22)															$ 5,669		$ 110	$ 500	$ 356	$ 500	$ 369	$ 535	$ 1,150	$ 1,500	$ 799	$ 807	$ 0	$ 0	$ 625	$ 625	$ 1,000	$ 1,000	$ 750	$ 0	$ (7)	$ (22)									$ 5,152	$ 5,445
Recourse Debt Current	(118)	(11)																																																													(118)	(11)
Recourse Debt Non Current	5,551	5,951																																																													5,034	5,434
Interest Rate																					7.75%	7.75%	7.75%	7.75%	9.75%	9.75%	8.00%	8.00%	7.38%	7.38%	4.88%	4.88%																							7.75%	7.75%	9.75%	8.00%		8.00%	7.38%	4.875%
Basis spread on variable rate																																																											2.25%						2.75%	2.75%
Stated interest rate																			6.75%
Junior subordinated notes and debentures payable																			517	517													517	517
Long-term Debt of Registrant, Maturities, Repayments of Principal, Fiscal Year Maturity [Abstract]
2014																																	118
2015																																	364
2016																																	368
2017																																	1,158
2018																																	764
Thereafter																																	$ 2,897