Condensed Consolidated Statements of Operations (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues:
Net investment income	$ 348.2	$ 352.0
Fee income	174.9	155.1
Premiums	7.9	11.8
Broker-dealer commission revenue	57.8	55.7
Net realized capital gains (losses):
Total other-than-temporary impairments	(1.1)	(1.4)
Less: Portion of other-than-temporary impairment losses recognized in Other comprehensive income (loss)	(0.5)	(0.1)
Net other-than-temporary impairments recognized in earnings	(0.6)	(1.3)
Other net realized capital gains (losses)	(39.5)	128.6
Total net realized capital gains (losses)	(40.1)	127.3
Other revenue	(4.9)	0.5
Total revenues	543.8	702.4
Benefits and expenses:
Interest credited and other benefits to contract owners	186.8	194.7
Operating expenses	173.6	180.4
Broker-dealer commission expense	57.8	55.7
Net amortization of deferred policy acquisition costs and value of business acquired	18.6	52.8
Interest expense	0.1	0.6
Total benefits and expenses	436.9	484.2
Income (loss) before income taxes	106.9	218.2
Income tax expense (benefit)	31.8	74.2
Net income (loss)	$ 75.1	$ 144.0