Financing Receivables Financing Receivables (Troubled Debt Restructurings) (Details 4) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014 loan	Sep. 30, 2013 loan	Sep. 30, 2014 loan	Sep. 30, 2013 loan
Troubled Debt Restructurings
Financing receivable, modifications, number of contracts	1	7	8	21
Financing receivable, modifications, post-modification recorded investment	$ 6,000,000	$ 12,000,000	$ 15,000,000	$ 22,000,000
Commitments to lend additional funds to borrowers for restructured loans	0		0
Commercial mortgage loans [Member]
Troubled Debt Restructurings
Financing receivable, modifications, number of contracts	1	3	3	7
Financing receivable, modifications, post-modification recorded investment	6,000,000	12,000,000	14,000,000	22,000,000
Syndicated loans [Member]
Troubled Debt Restructurings
Financing receivable, modifications, number of contracts	0	0	1	1
Financing receivable, modifications, post-modification recorded investment	0	0	1,000,000	0
Consumer loans [Member]
Troubled Debt Restructurings
Financing receivable, modifications, number of contracts	0	4	4	13
Financing receivable, modifications, post-modification recorded investment	$ 0	$ 0	$ 0	$ 0