Variable Annuity and Insurance Guarantees (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of variable annuity guarantees [Table Text Block]

The following table provides information related to variable annuity guarantees for which the Company has established additional liabilities:



Variable Annuity Guarantees by Benefit Type ⁽¹⁾	December 31, 2017							December 31, 2016
Variable Annuity Guarantees by Benefit Type ⁽¹⁾	Total Contract Value		Contract Value in Separate Accounts		Net Amount at Risk		Weighted Average Attained Age	Total Contract Value		Contract Value in Separate Accounts		Net Amount at Risk			Weighted Average Attained Age
	(in millions, except age)
GMDB:
Return of premium	$	61,418	$	59,461	$	9	66	$	56,143	$	54,145	$	208		65
Five/six-year reset	8,870		6,149		12		66	8,878		6,170		22			66
One-year ratchet	6,548		6,187		11		69	6,426		6,050		110			68
Five-year ratchet	1,563		1,506		1		65	1,542		1,483		7			64
Other	1,099		1,075		50		72	965		942		86			71
Total — GMDB	$	79,498	$	74,378	$	83	66	$	73,954	$	68,790	$	433		65

GGU death benefit	$	1,118	$	1,067	$	133	70	$	1,047	$	996	$	108		68

GMIB	$	233	$	216	$	7	69	$	245	$	227	$	13		68

GMWB:
GMWB	$	2,508	$	2,500	$	1	71	$	2,650	$	2,642	$	2		70
GMWB for life	44,375		44,259		129		67	39,436		39,282		289		⁽²⁾	66
Total — GMWB	$	46,883	$	46,759	$	130	67	$	42,086	$	41,924	$	291		66

GMAB	$	3,086	$	3,083	$	—	59	$	3,484	$	3,476	$	21		59

⁽¹⁾ Individual variable annuity contracts may have more than one guarantee and therefore may be included in more than one benefit type. Variable annuity contracts for which the death benefit equals the account value are not shown in this table.

⁽²⁾ Amount revised to reflect updated contractholder mortality assumptions as of December 31, 2016.

Schedule of net amount at risk UL secondary guarantees [Table Text Block]

The following table provides information related to insurance guarantees for which the Company has established additional liabilities:



	December 31, 2017			December 31, 2016
	Net Amount at Risk		Weighted Average Attained Age	Net Amount at Risk		Weighted Average Attained Age
	(in millions, except age)
UL secondary guarantees	$	6,460	65	$	6,376	64

Schedule of changes in additional liabilities for variable annuity and insurance guarantees [Table Text Block]

Changes in additional liabilities (contra liabilities) for variable annuity and insurance guarantees were as follows:



	GMDB & GGU			GMIB			GMWB ⁽¹⁾			GMAB ⁽¹⁾			UL
	(in millions)
Balance at January 1, 2015	$	9		$	7		$	693		$	(41	)	$	263
Incurred claims	10			1			364			41			92
Paid claims	(5		)	—			—			—			(23		)
Balance at December 31, 2015	14			8			1,057			—			332
Incurred claims	11			1			(40		)	(23		)	127
Paid claims	(9		)	(1		)	—			(1		)	(25		)
Balance at December 31, 2016	16			8			1,017			(24		)	434
Incurred claims	5			—			(554		)	(56		)	84
Paid claims	(4		)	(2		)	—			—			(29		)
Balance at December 31, 2017	$	17		$	6		$	463		$	(80	)	$	489

⁽¹⁾ The incurred claims for GMWB and GMAB represent the change in the fair value of the liabilities (contra liabilities) less paid claims.

Schedule of separate account balances by asset type [Table Text Block]

The following table summarizes the distribution of separate account balances by asset type for variable annuity contracts providing guaranteed benefits:



	December 31,
	2017		2016
	(in millions)
Mutual funds:
Equity	$	46,038	$	40,622
Bond	23,529		23,142
Other	5,109		5,326
Total mutual funds	$	74,676	$	69,090