XML 47 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1
Investments (Reconciliation Of Available-For-Sale Securities From Cost Basis To Fair Value) (Details) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost $ 86,097 $ 84,747
Gross unrealized gains 6,160 5,851
Gross unrealized losses 915 1,139
Gross unrealized OTTI [1] (36) (29)
Fair value 91,378 89,488
Equity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 263 260
Gross unrealized gains 16 19
Gross unrealized losses 3 4
Fair value 276 275
Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 85,834 84,487
Gross unrealized gains 6,144 5,832
Gross unrealized losses 912 1,135
Gross unrealized OTTI [1] (36) (29)
Fair value 91,102 89,213
Corporate bonds [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 74,509 73,275
Gross unrealized gains 5,036 4,754
Gross unrealized losses 771 970
Gross unrealized OTTI [1] (5) (5)
Fair value 78,779 77,064
ABS [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 1,017 1,047
Gross unrealized gains 40 39
Gross unrealized losses 12 14
Gross unrealized OTTI [1] (17) (13)
Fair value 1,062 1,085
U.S. government bonds [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 540 384
Gross unrealized gains 38 37
Gross unrealized losses 2 2
Fair value 576 419
Foreign government bonds [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 398 449
Gross unrealized gains 58 58
Gross unrealized losses   1
Fair value 456 506
RMBS [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 3,490 3,534
Gross unrealized gains 144 147
Gross unrealized losses 62 73
Gross unrealized OTTI [1] (9) (6)
Fair value 3,581 3,614
CMBS [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 423 345
Gross unrealized gains 7 8
Gross unrealized losses 4 4
Gross unrealized OTTI [1] (1) (1)
Fair value 427 350
CLOs [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 772 742
Gross unrealized gains 3 1
Gross unrealized losses 3 3
Gross unrealized OTTI [1] (4) (4)
Fair value 776 744
State and municipal bonds [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 4,101 3,929
Gross unrealized gains 743 718
Gross unrealized losses 18 20
Fair value 4,826 4,627
Hybrid and redeemable preferred securities [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost 584 582
Gross unrealized gains 75 70
Gross unrealized losses 40 48
Fair value $ 619 604
VIEs' fixed maturity securities [Member] | Fixed maturity AFS securities [Member]    
Amortized cost, gross unrealized gains, losses, OTTI and fair value of AFS securities    
Amortized cost   200
Fair value   $ 200
[1] Includes unrealized (gains) and losses on impaired securities related to changes in the fair value of such securities subsequent to the impairment measurement date.