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Segments (Tables)
9 Months Ended
Sep. 30, 2023
Segment Reporting [Abstract]  
Schedule of Operating Segment Information
The following table presents total revenue by segment. Inter-segment revenue was insignificant for all periods presented.
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(In millions)
Total revenue:
Medicaid$6,976 $6,380 $20,282 $19,091 
Medicare1,046 955 3,157 2,867 
Marketplace507 575 1,528 1,740 
Other19 17 57 53 
Total$8,548 $7,927 $25,024 $23,751 
The following table reconciles margin by segment to consolidated income before income taxes.
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
(In millions)
Margin:
Medicaid$752 $703 $2,242 $2,168 
Medicare78 108 317 360 
Marketplace104 77 393 255 
Other
Total margin 936 890 2,959 2,791 
Add: other operating revenues (1)
289 274 800 732 
Less: other operating expenses (2)
(866)(829)(2,502)(2,455)
Operating income359 335 1,257 1,068 
Other expenses, net27 28 82 83 
Income before income tax expense$332 $307 $1,175 $985 
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(1)Other operating revenues include premium tax revenue, investment income, and certain other revenue.
(2)Other operating expenses include general and administrative expenses, premium tax expenses, depreciation and amortization, and certain other operating expenses, including a credit loss charge of $41 million as described in Note 2.