XML 139 R130.htm IDEA: XBRL DOCUMENT v3.23.1
Segment Reporting - Reconciliation of Financial Measures of Segments to Consolidated Totals (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items]      
Revenues from external customers $ 321,629 $ 290,912 $ 267,908
Net investment income (loss) 838 1,199 798
Total revenues 322,467 292,111 268,706
Adjusted operating income (loss) 18,037 17,227 15,956
Depreciation and amortization 4,224 4,486 4,441
Operating Segments | Health Care Benefits      
Segment Reporting Information [Line Items]      
Revenues from external customers 90,798 81,457 74,871
Net investment income (loss) 476 586 483
Total revenues 91,350 82,119 75,409
Adjusted operating income (loss) 6,338 5,110 6,135
Depreciation and amortization 1,579 1,811 1,832
Operating Segments | Health Services      
Segment Reporting Information [Line Items]      
Revenues from external customers 157,968 143,912 131,936
Net investment income (loss) 0 0 0
Total revenues 169,576 153,892 141,354
Adjusted operating income (loss) 6,781 6,492 5,128
Depreciation and amortization 519 505 532
Copayments 12,600 11,600 10,900
Operating Segments | Pharmacy & Consumer Wellness      
Segment Reporting Information [Line Items]      
Revenues from external customers 72,739 65,418 60,990
Net investment income (loss) (44) 17 0
Total revenues 108,596 101,620 93,579
Adjusted operating income (loss) 6,531 7,260 6,012
Depreciation and amortization 1,889 1,955 1,881
Intersegment Eliminations      
Segment Reporting Information [Line Items]      
Intersegment revenues (47,585) (46,241) (42,062)
Net investment income (loss) 0 0 0
Total revenues (47,585) (46,241) (42,062)
Adjusted operating income (loss) 0 0 0
Depreciation and amortization 0 0 0
Intersegment Eliminations | Health Care Benefits      
Segment Reporting Information [Line Items]      
Intersegment revenues 76 76 55
Intersegment Eliminations | Health Services      
Segment Reporting Information [Line Items]      
Intersegment revenues 11,608 9,980 9,418
Intersegment Eliminations | Pharmacy & Consumer Wellness      
Segment Reporting Information [Line Items]      
Intersegment revenues 35,901 36,185 32,589
Corporate/ Other      
Segment Reporting Information [Line Items]      
Revenues from external customers 124 125 111
Net investment income (loss) 406 596 315
Total revenues 530 721 426
Adjusted operating income (loss) (1,613) (1,635) (1,319)
Depreciation and amortization $ 237 $ 215 $ 196