The following table represents the calculation of loss per common share – basic and diluted:

	Second Quarter						First Half
(In millions, except per share amounts)	2020			2019			2020			2019
Basic Loss Per Share
Numerator:
Net loss	$	(439	)	$	(24	)	$	(394	)	$	(16	)
Denominator:
Weighted-average shares outstanding		53			55			53			54
Basic loss per share	$	(8.34	)	$	(0.43	)	$	(7.46	)	$	(0.29	)
Diluted Loss Per Share
Numerator:
Net loss	$	(439	)	$	(24	)	$	(394	)	$	(16	)
Denominator:
Weighted-average shares outstanding		53			55			53			54
Effect of dilutive securities:
Stock options and restricted stock		1			—			1			1
Diluted weighted-average shares outstanding		54			55			54			55
Diluted loss per share	$	(8.19	)	$	(0.43	)	$	(7.31	)	$	(0.28	)

Awards of stock options and nonvested shares representing less than 1 million additional shares of common stock were outstanding for both the second quarter and first half of 2020, and less than 1 million for both the second quarter and first half of 2019, but were not included in the computation of diluted weighted-average shares outstanding because their effect would have been antidilutive.

After obtaining approval of the Company’s shareholders on May 11, 2020, the Company’s Board of Directors determined to set a reverse stock split ratio of 1-for-10 for a reverse stock split of the Company’s outstanding shares of common stock, and a reduction in the number of authorized shares of the Company’s common stock by a corresponding ratio. The reverse stock split was effective on June 30, 2020. All share and per share amounts have been retroactively adjusted for all periods presented to give effect to this reverse stock split.