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BENEFITS PAYABLE (Tables)
12 Months Ended
Dec. 31, 2021
Insurance [Abstract]  
Schedule of Activity in Benefits Payable
On a consolidated basis, activity in benefits payable was as follows for the years ended December 31, 2021, 2020 and 2019:
202120202019
 (in millions)
Balances at January 1$8,143 $6,004 $4,862 
Less: Reinsurance recoverables— (68)(95)
Balances at January 1, net8,143 5,936 4,767 
Acquisitions42 — — 
Incurred related to:
Current year70,024 61,941 54,193 
Prior years(825)(313)(336)
Total incurred69,199 61,628 53,857 
Paid related to:
Current year(62,149)(54,003)(48,421)
Prior years(6,946)(5,418)(4,267)
Total paid(69,095)(59,421)(52,688)
Reinsurance recoverable— — 68 
Balances at December 31$8,289 $8,143 $6,004 
Activity in benefits payable for our Retail segment was as follows for the years ended December 31, 2021, 2020 and 2019:
202120202019
 (in millions)
Balances at January 1$7,428 $5,363 $4,338 
Less: Reinsurance recoverables— (68)(95)
Balances at January 1, net7,428 5,295 4,243 
Acquisitions42 — — 
Incurred related to:
Current year65,636 56,821 48,983 
Prior years(729)(266)(386)
Total incurred64,907 56,555 48,597 
Paid related to:
Current year(58,363)(49,586)(43,831)
Prior years(6,339)(4,836)(3,714)
Total paid(64,702)(54,422)(47,545)
Reinsurance recoverable— — 68 
Balances at December 31$7,675 $7,428 $5,363 
Activity in benefits payable for our Group and Specialty segment, excluding military services, was as follows for the years ended December 31, 2021, 2020 and 2019:
202120202019
 (in millions)
Balances at January 1$715 $641 $517 
Incurred related to:
Current year5,047 5,576 5,708 
Prior years(96)(47)50 
Total incurred4,951 5,529 5,758 
Paid related to:
Current year(4,445)(4,873)(5,081)
Prior years(607)(582)(553)
Total paid(5,052)(5,455)(5,634)
Balances at December 31$614 $715 $641 
Schedule of Favorable Medical Claims Reserve Development Related to Prior Fiscal Years by Segment The table below details our favorable medical claims reserve development related to prior fiscal years by segment for 2021, 2020, and 2019.
 (Favorable) Unfavorable Medical Claims Reserve
Development
 202120202019
 (in millions)
Retail Segment$(729)$(266)$(386)
Group and Specialty Segment(96)(47)50 
Total$(825)$(313)$(336)
Schedule of Incurred and Paid Claims Development
The following tables provide information about incurred and paid claims development for the Retail segment as of December 31, 2021, net of reinsurance.
Incurred Claims, Net of Reinsurance
For the Years Ended December 31,
Claims Incurred Year2019
Unaudited
2020
Unaudited
2021
(in millions)
2019$48,983 $48,820 $48,713 
202056,821 56,223 
202165,678 
 Total$170,614 
Cumulative Paid Claims, Net of Reinsurance
For the Years Ended December 31,
Claims Incurred Year2019
Unaudited
2020
Unaudited
2021
(in millions)
2019$43,831 $48,627 $48,713 
202049,586 55,863 
202158,363 
 Total162,939 
All outstanding benefit liabilities before 2019, net of reinsuranceN/A
Benefits payable, net of reinsurance$7,675 
    The following tables provide information about incurred and paid claims development for the Group and Specialty segment as of December 31, 2021, net of reinsurance.
Incurred Claims, Net of Reinsurance
For the Years Ended December 31,
Claims Incurred Year2019
Unaudited
2020
Unaudited
2021
(in millions)
2019$5,708 $5,657 $5,652 
20205,576 5,491 
20215,047 
 Total$16,190 
Cumulative Paid Claims, Net of Reinsurance
For the Years Ended December 31,
Claims Incurred Year2019
Unaudited
2020
Unaudited
2021
(in millions)
2019$5,081 $5,465 $5,652 
20204,873 5,479 
20214,445 
Total15,576 
All outstanding benefit liabilities before 2019, net of reinsuranceN/A
Benefits payable, net of reinsurance$614