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10-K Reinsurance (Tables)
 12 Months Ended
Dec. 31, 2022
Reinsurance Disclosures [Abstract]  
Summary Of Direct, Assumed And Ceded Premiums Earned
A summary of direct, assumed and ceded premiums earned for the years ended December 31, 2022, 2021 and 2020 is as follows:
 202220212020
Direct$128,867$113,149$100,832
Assumed4,4264,2983,356
Ceded(64)(74)(79)
Net premiums$133,229$117,373$104,109
Percentage—assumed to net premiums
3.3 %3.7 %3.2 %
Summary Of Net Premiums Earned By Segment
A summary of net premiums earned by segment (see Note 20, “Segment Information”) for the years ended December 31, 2022, 2021 and 2020 is as follows:
 202220212020
Reportable segments:
Health Benefits$131,964 $115,725 $102,643 
Carelon Services1,265 1,648 1,466 
Net premiums$133,229 $117,373 $104,109 
Effect Of Reinsurance On Benefit Expense
The effect of reinsurance on benefit expense for the years ended December 31, 2022, 2021 and 2020 is as follows:
202220212020
Direct$112,964 $98,933 $85,168 
Assumed3,730 3,719 2,967 
Ceded(52)(81)(90)
Net benefit expense$116,642 $102,571 $88,045