Investments - Schedule of AFS Securities (Details) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Fixed maturity securities
Cost or Amortized Cost	$ 54,775	$ 51,110
Gross Unrealized Gains	2,352	1,552
Gross Unrealized Losses	(314)	(629)
Fair Value	56,813	52,033
OTTI in AOCI	17	17
Equity securities
Cost or Amortized Cost	379	319
Gross Unrealized Gains	51	35
Gross Unrealized Losses	(1)	(1)
Fair Value	429	353
Total AFS securities
Cost or Amortized Cost	55,154	51,429
Gross Unrealized Gains	2,403	1,587
Gross Unrealized Losses	(315)	(630)
Fair Value	57,242	52,386
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | U.S. government and agencies
Fixed maturity securities
Cost or Amortized Cost	58	59
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(1)	0
Fair Value	57	60
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | U.S. state, municipal and political subdivisions
Fixed maturity securities
Cost or Amortized Cost	1,010	1,024
Gross Unrealized Gains	147	117
Gross Unrealized Losses	(1)	(1)
Fair Value	1,156	1,140
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | Foreign governments
Fixed maturity securities
Cost or Amortized Cost	2,133	2,098
Gross Unrealized Gains	91	143
Gross Unrealized Losses	(11)	(6)
Fair Value	2,213	2,235
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | Corporate
Fixed maturity securities
Cost or Amortized Cost	32,057	29,433
Gross Unrealized Gains	1,363	901
Gross Unrealized Losses	(200)	(314)
Fair Value	33,220	30,020
OTTI in AOCI	5	2
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | CLO
Fixed maturity securities
Cost or Amortized Cost	5,161	4,950
Gross Unrealized Gains	38	14
Gross Unrealized Losses	(29)	(142)
Fair Value	5,170	4,822
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | ABS
Fixed maturity securities
Cost or Amortized Cost	3,597	2,980
Gross Unrealized Gains	49	25
Gross Unrealized Losses	(42)	(69)
Fair Value	3,604	2,936
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | CMBS
Fixed maturity securities
Cost or Amortized Cost	1,828	1,835
Gross Unrealized Gains	56	38
Gross Unrealized Losses	(19)	(26)
Fair Value	1,865	1,847
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party | RMBS
Fixed maturity securities
Cost or Amortized Cost	8,931	8,731
Gross Unrealized Gains	608	313
Gross Unrealized Losses	(11)	(71)
Fair Value	9,528	8,973
OTTI in AOCI	12	15
Consolidated Entity Excluding Variable Interest Entities (VIE)
Fixed maturity securities
Cost or Amortized Cost	55,109
Fair Value	57,150
OTTI in AOCI	17	17
Total AFS securities
Cost or Amortized Cost	55,488	51,790
Gross Unrealized Gains	2,406	1,588
Gross Unrealized Losses	(315)	(637)
Fair Value	57,579	52,741
Consolidated Entity Excluding Variable Interest Entities (VIE) | Related Party
Fixed maturity securities
Cost or Amortized Cost	334	341
Gross Unrealized Gains	3	1
Gross Unrealized Losses	0	(7)
Fair Value	337	335
OTTI in AOCI	0	0
Equity securities
Cost or Amortized Cost	0	20
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value	0	20
Total AFS securities
Cost or Amortized Cost		361
Gross Unrealized Gains		1
Gross Unrealized Losses		(7)
Fair Value		355
Consolidated Entity Excluding Variable Interest Entities (VIE) | Related Party | CLO
Fixed maturity securities
Cost or Amortized Cost	280	284
Gross Unrealized Gains	3	1
Gross Unrealized Losses	0	(6)
Fair Value	283	279
OTTI in AOCI	0	0
Consolidated Entity Excluding Variable Interest Entities (VIE) | Related Party | ABS
Fixed maturity securities
Cost or Amortized Cost	54	57
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(1)
Fair Value	54	56
OTTI in AOCI	$ 0	$ 0