Segment information as of and for the year ended December 31, 2017, follows ($ in millions):



	Managed Care		Specialty Services		Eliminations			Consolidated Total
Total revenues from external customers	$	45,798	$	2,584	$	—		$	48,382
Total revenues internal customers	44		9,471		(9,515		)	—
Total revenues	$	45,842	$	12,055	(9,515		)	$	48,382
Earnings from operations	$	917	$	282	—			$	1,199
Total assets	$	19,959	$	1,896	—			$	21,855

Segment information as of and for the year ended December 31, 2016, follows ($ in millions):



	Managed Care		Specialty Services		Eliminations			Consolidated Total
Total revenues from external customers	$	38,182	$	2,425	$	—		$	40,607
Total revenues internal customers	200		5,952		(6,152		)	—
Total revenues	$	38,382	$	8,377	$	(6,152	)	$	40,607
Earnings from operations	$	1,077	$	183	$	—		$	1,260
Total assets	$	18,423	$	1,774	$	—		$	20,197

Segment information as of and for the year ended December 31, 2015, follows ($ in millions):



	Managed Care		Specialty Services		Eliminations			Consolidated Total
Total revenues from external customers	$	20,865	$	1,895	$	—		$	22,760
Total revenues internal customers	101		4,862		(4,963		)	—
Total revenues	$	20,966	$	6,757	$	(4,963	)	$	22,760
Earnings from operations	$	531	$	174	$	—		$	705
Total assets	$	6,327	$	1,012	$	—		$	7,339