Schedule V - Valuation and Qualifying Accounts and Reserves (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Allowance for Loans and Leases Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 7		$ 19		$ 12
Charged (Credited) to costs and expenses	4		10		16
Charged (Credited) to other accounts	0		0		0
Other deductions	(3)	[1]	(22)	[1]	(9)	[1]
Balance at end of period	8		7		19
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	51		45		49
Charged (Credited) to costs and expenses	0		4		4
Charged (Credited) to other accounts	(2)		1		(1)
Other deductions	(6)		1		(7)
Balance at end of period	43		51		45
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	42		45		26
Charged (Credited) to costs and expenses	7		4		4
Charged (Credited) to other accounts	0		(7)		15	[2]
Other deductions	0		0		0
Balance at end of period	49		42		45
Allowance for Reinsurance Recoverable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	4		5		10
Charged (Credited) to costs and expenses	0		(1)		(5)
Charged (Credited) to other accounts	0		0		0
Other deductions	0		0		0
Balance at end of period	$ 4		$ 4		$ 5

[1] Amounts for commercial mortgage loans primarily reflects charge-offs upon sales and repayments, as well as transfers to foreclosed real estate. 2012 amount also includes restructures reclassified to Other Long-term Investments.

[2] 2011 increase to deferred tax asset valuation allowance reflects effects of the acquisition of First Assist in November 2011.