Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

(In millions, except per share amounts)				Three Months Ended
	March 31		June 30			Sept. 30			Dec. 31
Consolidated Results
2016
Total revenues	$	9,884	$	9,960		$	9,880		$	9,944
Income before income taxes		819		813			742			605
Shareholders' net income		519	⁽¹⁾	510	⁽¹⁾		456	^{(1), (2)}		382	^{(1), (4)}
Shareholders' net income per share:	1
Basic		2.04		2.00			1.79			1.49
Diluted		2.00		1.97			1.76			1.47
2015
Total revenues	$	9,467	$	9,492		$	9,389		$	9,528
Income before income taxes		854		936			878			659
Shareholders' net income		533		588	⁽³⁾		547	⁽¹⁾		426	⁽¹⁾
Shareholders' net income per share:	1
Basic		2.08		2.30			2.14			1.66
Diluted		2.04		2.26			2.10			1.64
Stock and Dividend Data
2016
Price range of common stock — high	$	147.93	$	142.91		$	148.99		$	142.00
— low	$	123.54	$	121.87		$	123.53		$	115.03
Dividends declared per common share	$	0.04	$	-		$	-		$	-
2015
Price range of common stock — high	$	131.13	$	170.63		$	166.19		$	148.51
— low	$	100.68	$	124.30		$	125.61		$	127.51
Dividends declared per common share	$	0.04	$	-		$	-		$	-

(1) Shareholders' net income includes after-tax charges related to the Company's proposed merger with Anthem as follows: $29 million in the third quarter of 2015, $28 million in the fourth quarter of 2015, $36 million in the first quarter of 2016, $26 million in the second quarter of 2016, $46 million in the third quarter of 2016 and $39 million in the fourth quarter of 2016. See Note 3 to the Consolidated Financial Statements for additional details

(2) Shareholders' net income includes an after-tax charge of $25 million for charges related to litigation matters in the third quarter of 2016. See Note 21 to the Consolidated Financial Statements for a description of litigation matters.

(3) Shareholders' net income includes an after-tax charge of $-65 million for the early extinguishment of debt in the second quarter of 2015. See Note 5 to the Consolidated Financial Statements for additional details.

(4) Shareholders' net income includes an after-tax charge of $80 million for an allowance for the risk corridor receivable balance in the fourth quarter of 2016. See Note 22 to the Consolidated Financial Statements for additional details.