Segments (Tables)

6 Months Ended

Jun. 30, 2019

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 June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
	(In millions)
Total revenue:
Health Plans	$	4,190	$	4,752	$	8,307	$	9,261
Other	3		131		5		268
Consolidated	$	4,193	$	4,883	$	8,312	$	9,529

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

	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
	(In millions)
Margin:
Health Plans	$	583		$	664		$	1,164		$	1,265
Other	—			9			—			23
Total margin	583			673			1,164			1,288
Add: other operating revenues (1)	144			242			311			431
Less: other operating expenses (2)	(462		)	(573		)	(930		)	(1,155		)
Operating income	265			342			545			564
Other expenses, net	8			37			28			80
Income before income tax expense	$	257		$	305		$	517		$	484

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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 restructuring costs.