XML 125 R108.htm IDEA: XBRL DOCUMENT v3.24.0.1
Investments (Fair Value and Losses by Investment Category and Length of Time in a Loss Position) (Details) - Fixed Maturities [Member] - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses $ 183 $ 3,693
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 5,370 3,615
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 5,553 7,308
Debt Securities, Available-for-sale, Unrealized Loss Position 41,535 44,546
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 4,857 31,631
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 36,678 12,915
External Credit Rating, Investment Grade [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 147 3,598
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 5,186 3,485
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 5,333 7,083
Debt Securities, Available-for-sale, Unrealized Loss Position 40,326 43,181
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 4,562 30,773
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 35,764 12,408
External Credit Rating, Investment Grade [Member] | Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 70 2,756
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 3,524 2,225
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 3,594 4,981
Debt Securities, Available-for-sale, Unrealized Loss Position 26,341 28,707
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 2,134 21,867
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 24,207 6,840
External Credit Rating, Investment Grade [Member] | Canadian Provincial Governments [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 0 42
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 33 23
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 33 65
Debt Securities, Available-for-sale, Unrealized Loss Position 459 625
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 554
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 459 71
External Credit Rating, Investment Grade [Member] | Residential Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 5 153
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 223 269
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 228 422
Debt Securities, Available-for-sale, Unrealized Loss Position 3,361 3,527
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 336 1,596
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 3,025 1,931
External Credit Rating, Investment Grade [Member] | Asset-backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 5 144
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 190 65
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 195 209
Debt Securities, Available-for-sale, Unrealized Loss Position 1,488 1,595
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 160 1,314
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 1,328 281
External Credit Rating, Investment Grade [Member] | Commercial Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 3 62
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 99 53
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 102 115
Debt Securities, Available-for-sale, Unrealized Loss Position 796 845
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 115 664
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 681 181
External Credit Rating, Investment Grade [Member] | US Government Agencies Debt Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 10 64
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 204 148
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 214 212
Debt Securities, Available-for-sale, Unrealized Loss Position 1,331 1,455
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 614 1,202
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 717 253
External Credit Rating, Investment Grade [Member] | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 1 124
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 128 50
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 129 174
Debt Securities, Available-for-sale, Unrealized Loss Position 937 950
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 73 819
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 864 131
External Credit Rating, Investment Grade [Member] | Debt Security, Government, Non-US [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 3 167
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 333 260
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 336 427
Debt Securities, Available-for-sale, Unrealized Loss Position 2,544 2,968
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 254 1,942
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 2,290 1,026
External Credit Rating, Investment Grade [Member] | Japanese Government Debt Securities Member    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 50 86
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 452 392
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 502 478
Debt Securities, Available-for-sale, Unrealized Loss Position 3,069 2,509
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 876 815
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 2,193 1,694
External Credit Rating, Non Investment Grade [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 36 95
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 184 130
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 220 225
Debt Securities, Available-for-sale, Unrealized Loss Position 1,209 1,365
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 295 858
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 914 507
External Credit Rating, Non Investment Grade [Member] | Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 36 87
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 121 61
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 157 148
Debt Securities, Available-for-sale, Unrealized Loss Position 944 1,072
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 295 767
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 649 305
External Credit Rating, Non Investment Grade [Member] | Asset-backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 0 6
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 10 9
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 10 15
Debt Securities, Available-for-sale, Unrealized Loss Position 68 90
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 52
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 68 38
External Credit Rating, Non Investment Grade [Member] | Commercial Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 0 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 1 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 1 0
Debt Securities, Available-for-sale, Unrealized Loss Position 4 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 4 0
External Credit Rating, Non Investment Grade [Member] | Debt Security, Government, Non-US [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 0 2
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses 52 60
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses 52 62
Debt Securities, Available-for-sale, Unrealized Loss Position 193 203
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 39
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer $ 193 $ 164