Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Summary of financial information related to segments

The following tables summarize segment financial information:

	Year Ended December 31, 2016
	Individual		Empower
	Markets		Retirement		Other		Total
Revenue:
Premium income	$	379,127	$	1,853	$	84,369	$	465,349
Fee income	99,514		851,620		5,683		956,817
Other revenue	—		12,261		—		12,261
Net investment income	798,557		428,327		49,675		1,276,559
Realized investments gains (losses), net	40,899		51,209		774		92,882
Total revenues	1,318,097		1,345,270		140,501		2,803,868
Benefits and expenses:
Policyholder benefits	969,182		206,143		65,698		1,241,023
Operating expenses	175,016		1,002,129		69,096		1,246,241
Total benefits and expenses	1,144,198		1,208,272		134,794		2,487,264
Income before income taxes	173,899		136,998		5,707		316,604
Income tax expense	58,601		25,144		1,767		85,512
Net income	$	115,298	$	111,854	$	3,940	$	231,092

	December 31, 2016
	Individual		Empower
	Markets		Retirement		Other		Total
Assets:
Investments	$	16,770,772	$	12,195,748	$	1,634,330	$	30,600,850
Other assets	1,453,717		1,057,148		141,666		2,652,531
Separate account assets	7,521,475		19,516,290		—		27,037,765
Assets of continuing operations	$	25,745,964	$	32,769,186	$	1,775,996	60,291,146
Assets of discontinued operations							17,652
Total assets							$	60,308,798

	Year Ended December 31, 2015
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	360,783	$	533	$	84,234		$	445,550
Fee income	87,471		853,076		3,979			944,526
Other revenue	—		13,563		—			13,563
Net investment income	801,935		398,639		53,856			1,254,430
Realized investments gains (losses), net	28,864		54,752		94			83,710
Total revenues	1,279,053		1,320,563		142,163			2,741,779
Benefits and expenses:
Policyholder benefits	931,631		201,791		101,205			1,234,627
Operating expenses	159,719		992,564		65,890			1,218,173
Total benefits and expenses	1,091,350		1,194,355		167,095			2,452,800
Income (loss) before income taxes	187,703		126,208		(24,932		)	288,979
Income tax expense (benefit)	64,360		43,058		(8,894		)	98,524
Net income (loss)	$	123,343	$	83,150	$	(16,038	)	$	190,455

	December 31, 2015
	Individual		Empower
	Markets		Retirement		Other		Total
Assets:
Investments	$	16,074,681	$	10,966,096	$	1,770,249	$	28,811,026
Other assets	1,358,934		927,061		149,655		2,435,650
Separate account assets	7,031,013		19,600,180		—		26,631,193
Assets of continuing operations	$	24,464,628	$	31,493,337	$	1,919,904	57,877,869
Assets of discontinued operations							21,910
Total assets							$	57,899,779

	Year Ended December 31, 2014
	Individual		Empower
	Markets		Retirement		Other			Total
Revenue:
Premium income	$	360,305	$	1,215	$	84,875		$	446,395
Fee income	95,631		629,533		4,015			729,179
Other revenue	—		7,506		—			7,506
Net investment income	748,015		426,340		54,033			1,228,388
Realized investments gains (losses), net	44,381		102,597		393			147,371
Total revenues	1,248,332		1,167,191		143,316			2,558,839
Benefits and expenses:
Policyholder benefits	902,982		206,339		113,124			1,222,445
Operating expenses	136,850		647,165		79,107			863,122
Total benefits and expenses	1,039,832		853,504		192,231			2,085,567
Income (loss) before income taxes	208,500		313,687		(48,915		)	473,272
Income tax expense (benefit)	68,719		104,162		(16,978		)	155,903
Net income (loss)	$	139,781	$	209,525	$	(31,937	)	$	317,369