Segments (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Operating Segment Information

The following table presents total revenue by segment. Inter-segment revenue was insignificant for all periods presented.

	Three Months Ended March 31,
	2020		2019
	(In millions)
Total revenue:
Health Plans	$	4,545	$	4,117
Other	4		2
Consolidated	$	4,549	$	4,119

The following table reconciles margin to consolidated income before income taxes:

	Three Months Ended March 31,
	2020			2019
	(In millions)
Margin:
Health Plans	$	588		$	581
Add: other operating revenues (1)	245			167
Less: other operating expenses (2)	(559		)	(468		)
Operating income	274			280
Other expenses, net	21			20
Income before income tax expense	$	253		$	260

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(1) Other operating revenues include premium tax revenue, health insurer fees reimbursed, and investment income and other revenue.

(2) Other operating expenses include general and administrative expenses, premium tax expenses, health insurer fees, depreciation and amortization, and other costs.