Insurance (Liabilities for Unpaid Claims and Claims Expense - Development Tables) (Details) $ in Millions	Dec. 31, 2022 USD ($) Claims	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Claims Development [Line Items]
Total unpaid claims and claim adjustment expenses, net of reinsurance	$ 14,125
Group Life - Term
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	80,599
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	77,480
All outstanding liabilities for incurral years not separately stated, net of reinsurance	22
Total unpaid claims and claim adjustment expenses, net of reinsurance	3,141
Group Life - Term | Short-duration Insurance Contracts, Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	6,726	$ 6,726	$ 6,724	$ 6,723	$ 6,720	$ 6,730	$ 6,720	$ 6,719	$ 6,713	$ 6,637
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 1
Cumulative Number of Reported Claims | Claims	213,283
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 6,724	6,723	6,721	6,720	6,715	6,711	6,678	6,664	6,614	5,216
Group Life - Term | Short-duration Insurance Contracts, Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	6,920	6,918	6,920	6,919	6,914	6,910	6,913	6,919	6,986
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 1
Cumulative Number of Reported Claims | Claims	216,148
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 6,917	6,916	6,915	6,912	6,902	6,869	6,858	6,809	5,428
Group Life - Term | Short-duration Insurance Contracts, Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	7,026	7,026	7,025	7,024	7,021	7,014	7,015	7,040
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 1
Cumulative Number of Reported Claims | Claims	218,782
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 7,024	7,022	7,018	7,008	6,974	6,958	6,913	5,524
Group Life - Term | Short-duration Insurance Contracts, Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	7,107	7,104	7,105	7,104	7,095	7,085	7,125
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 2
Cumulative Number of Reported Claims | Claims	220,671
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 7,100	7,096	7,086	7,053	7,034	6,980	5,582
Group Life - Term | Short-duration Insurance Contracts, Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	7,428	7,428	7,427	7,425	7,418	7,432
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 3
Cumulative Number of Reported Claims | Claims	263,546
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 7,414	7,400	7,374	7,355	7,292	5,761
Group Life - Term | Short-duration Insurance Contracts, Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	7,651	7,650	7,646	7,655	7,757
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 6
Cumulative Number of Reported Claims | Claims	251,446
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 7,629	7,595	7,578	7,521	6,008
Group Life - Term | Short-Duration Insurance Contracts, Accident Year 2019
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	7,917	7,907	7,900	7,935
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 11
Cumulative Number of Reported Claims | Claims	252,015
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 7,853	7,820	7,756	6,178
Group Life - Term | Short-Duration Insurance Contract, Accident Year 2020
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	9,389	9,367	8,913
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 23
Cumulative Number of Reported Claims | Claims	297,022
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 9,242	9,103	6,862
Group Life - Term | Short-Duration Insurance Contract, Accident Year 2021
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	10,795	10,555
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 64
Cumulative Number of Reported Claims | Claims	327,725
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 10,476	8,008
Group Life - Term | Short-Duration Insurance Contract, Accident Year 2022
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	9,640
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 1,129
Cumulative Number of Reported Claims | Claims	276,784
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 7,101
Group Life - Term | Asia
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	2,952
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	2,006
All outstanding liabilities for incurral years not separately stated, net of reinsurance	11
Total unpaid claims and claim adjustment expenses, net of reinsurance	957
Group Life - Term | Asia | Short-duration Insurance Contracts, Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	155	157	156	153	153	145	146	151	130	129
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 5
Cumulative Number of Reported Claims | Claims	6,597
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 150	149	146	138	142	129	118	105	86	38
Group Life - Term | Asia | Short-duration Insurance Contracts, Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	224	230	230	229	233	222	222	241	257
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 8
Cumulative Number of Reported Claims | Claims	6,865
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 216	213	208	198	197	175	156	125	60
Group Life - Term | Asia | Short-duration Insurance Contracts, Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	241	245	241	239	229	235	232	243
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 13
Cumulative Number of Reported Claims | Claims	6,792
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 229	225	218	204	180	167	134	71
Group Life - Term | Asia | Short-duration Insurance Contracts, Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	216	215	210	208	195	206	203
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 19
Cumulative Number of Reported Claims | Claims	4,707
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 197	190	181	167	134	117	57
Group Life - Term | Asia | Short-duration Insurance Contracts, Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	272	277	270	252	244	263
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 30
Cumulative Number of Reported Claims | Claims	5,619
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 242	240	224	183	138	77
Group Life - Term | Asia | Short-duration Insurance Contracts, Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	309	315	305	293	321
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 56
Cumulative Number of Reported Claims | Claims	5,982
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 252	243	209	155	84
Group Life - Term | Asia | Short-Duration Insurance Contracts, Accident Year 2019
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	335	339	324	347
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 79
Cumulative Number of Reported Claims | Claims	5,966
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 257	221	170	93
Group Life - Term | Asia | Short-Duration Insurance Contract, Accident Year 2020
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	331	359	385
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 127
Cumulative Number of Reported Claims | Claims	5,030
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 203	153	85
Group Life - Term | Asia | Short-Duration Insurance Contract, Accident Year 2021
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	382	367
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 211
Cumulative Number of Reported Claims | Claims	5,659
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 171	77
Group Life - Term | Asia | Short-Duration Insurance Contract, Accident Year 2022
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	487
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 399
Cumulative Number of Reported Claims | Claims	3,461
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 89
Group Long-Term Disability
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	12,300
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	6,251
All outstanding liabilities for incurral years not separately stated, net of reinsurance	1,496
Total unpaid claims and claim adjustment expenses, net of reinsurance	7,545
Group Long-Term Disability | Short-duration Insurance Contracts, Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,027	1,025	1,032	1,044	1,069	1,070	1,049	1,032	1,027	1,008
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	21,139
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 798	764	722	676	622	551	475	382	234	43
Group Long-Term Disability | Short-duration Insurance Contracts, Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,078	1,081	1,097	1,098	1,109	1,101	1,079	1,077	1,076
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	22,853
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 818	778	732	677	609	526	428	266	51
Group Long-Term Disability | Short-duration Insurance Contracts, Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,086	1,067	1,081	1,087	1,100	1,093	1,105	1,082
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	21,216
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 764	718	665	601	524	427	264	50
Group Long-Term Disability | Short-duration Insurance Contracts, Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,123	1,124	1,139	1,162	1,159	1,139	1,131
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	17,973
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 750	696	628	548	433	267	49
Group Long-Term Disability | Short-duration Insurance Contracts, Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,181	1,165	1,195	1,203	1,202	1,244
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	16,328
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 719	655	579	476	290	56
Group Long-Term Disability | Short-duration Insurance Contracts, Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,170	1,147	1,163	1,175	1,240
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	15,214
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 666	594	497	314	54
Group Long-Term Disability | Short-Duration Insurance Contracts, Accident Year 2019
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,177	1,169	1,212	1,277
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	15,392
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 620	522	342	57
Group Long-Term Disability | Short-Duration Insurance Contract, Accident Year 2020
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,155	1,223	1,253
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 6
Cumulative Number of Reported Claims | Claims	15,719
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 535	355	59
Group Long-Term Disability | Short-Duration Insurance Contract, Accident Year 2021
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,608	1,552
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 43
Cumulative Number of Reported Claims | Claims	19,189
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 505	95
Group Long-Term Disability | Short-Duration Insurance Contract, Accident Year 2022
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	1,695
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 760
Cumulative Number of Reported Claims | Claims	9,970
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 76
Protection Life
Claims Development [Line Items]
Total unpaid claims and claim adjustment expenses, net of reinsurance	405
Protection Life | Latin America
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	3,746
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	3,347
All outstanding liabilities for incurral years not separately stated, net of reinsurance	6
Total unpaid claims and claim adjustment expenses, net of reinsurance	405
Protection Life | Latin America | Short-duration Insurance Contracts, Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	216	224	224	224	223	221	222	221	215	152
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	30,204
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 210	218	217	216	214	212	213	212	208	149
Protection Life | Latin America | Short-duration Insurance Contracts, Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	324	333	333	332	332	328	360	350	229
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	38,375
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 314	323	321	320	318	314	311	306	204
Protection Life | Latin America | Short-duration Insurance Contracts, Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	391	401	407	406	406	401	431	300
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	44,496
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 373	383	382	379	373	366	345	244
Protection Life | Latin America | Short-duration Insurance Contracts, Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	426	436	435	434	427	416	318
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	38,800
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 427	434	431	429	421	402	225
Protection Life | Latin America | Short-duration Insurance Contracts, Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	308	318	318	319	319	327
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	30,819
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 305	314	310	307	291	194
Protection Life | Latin America | Short-duration Insurance Contracts, Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	292	294	293	295	305
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 1
Cumulative Number of Reported Claims | Claims	29,563
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 274	277	272	261	153
Protection Life | Latin America | Short-Duration Insurance Contracts, Accident Year 2019
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	301	304	301	329
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 2
Cumulative Number of Reported Claims | Claims	32,017
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 278	280	260	171
Protection Life | Latin America | Short-Duration Insurance Contract, Accident Year 2020
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	502	498	497
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 10
Cumulative Number of Reported Claims | Claims	42,318
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 442	431	216
Protection Life | Latin America | Short-Duration Insurance Contract, Accident Year 2021
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	550	632
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 34
Cumulative Number of Reported Claims | Claims	51,077
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 456	326
Protection Life | Latin America | Short-Duration Insurance Contract, Accident Year 2022
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	436
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 163
Cumulative Number of Reported Claims | Claims	30,066
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 268
Protection Health
Claims Development [Line Items]
Total unpaid claims and claim adjustment expenses, net of reinsurance	139
Protection Health | Latin America
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	3,817
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	3,679
All outstanding liabilities for incurral years not separately stated, net of reinsurance	1
Total unpaid claims and claim adjustment expenses, net of reinsurance	139
Protection Health | Latin America | Short-duration Insurance Contracts, Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	257	256	256	256	256	256	259	258	256	227
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	104,402
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 257	256	256	256	256	256	259	258	256	$ 227
Protection Health | Latin America | Short-duration Insurance Contracts, Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	263	262	262	261	261	262	264	262	236
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	98,132
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 260	259	259	259	259	259	263	260	$ 234
Protection Health | Latin America | Short-duration Insurance Contracts, Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	231	231	231	230	231	232	230	203
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	87,596
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 231	231	230	230	230	229	230	$ 203
Protection Health | Latin America | Short-duration Insurance Contracts, Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	304	303	303	303	303	306	266
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	106,665
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 304	303	303	302	302	299	$ 250
Protection Health | Latin America | Short-duration Insurance Contracts, Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	358	358	358	359	358	385
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	121,591
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 358	357	356	356	354	$ 314
Protection Health | Latin America | Short-duration Insurance Contracts, Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	409	409	410	433	412
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 0
Cumulative Number of Reported Claims | Claims	144,503
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 407	405	404	401	$ 352
Protection Health | Latin America | Short-Duration Insurance Contracts, Accident Year 2019
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	172	173	179	137
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 1
Cumulative Number of Reported Claims | Claims	132,150
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 169	166	163	$ 115
Protection Health | Latin America | Short-Duration Insurance Contract, Accident Year 2020
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	486	488	497
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 5
Cumulative Number of Reported Claims | Claims	149,147
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 480	475	$ 420
Protection Health | Latin America | Short-Duration Insurance Contract, Accident Year 2021
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	641	638
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 13
Cumulative Number of Reported Claims | Claims	167,881
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 624	$ 564
Protection Health | Latin America | Short-Duration Insurance Contract, Accident Year 2022
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance	696
Total IBNR Liabilities Plus Expected Development on Reported Claims	$ 67
Cumulative Number of Reported Claims | Claims	140,625
Cumulative paid claims and paid allocated claim adjustment expenses, net of reinsurance	$ 589