Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	Quarter
(millions, except share data)	First		Second			Third			Fourth
2014
Net sales	$	850	$	948		$	972		$	954
Gross profit	143		175			176			160
Operating profit (loss) (b)	66		98			22			(24		)
Income (loss) from continuing operations (b)	45		58			(11		)	(53		)
Loss from discontinued operations, net of tax	—		(1		)	—			—
Net income (loss) attributable to USG (b)	45		57			(12		)	(53		)
Income (loss) from continuing operations per common share:
Basic (a)	0.33		0.40			(0.09		)	(0.36		)
Diluted (a)	0.32		0.39			(0.09		)	(0.36		)
2013
Net sales	$	814	$	916		$	925		$	915
Gross profit	124		151			155			151
Operating profit (c)	49		74			75			60
Loss from continuing operations (c)	2		25			24			(3		)
Loss from discontinued operations, net of tax	—		—			(1		)	(1		)
Net income (loss) attributable to USG (c)	2		25			23			(3		)
Income (loss) from continuing operations per common share:
Basic (a)	0.02		0.23			0.23			(0.02		)
Diluted (a)	0.02		0.22			0.22			(0.02		)

(a) The sum of the four quarters is not necessarily the same as the total for the year.

(b) Operating profit (loss), income (loss) from continuing operations, and net income (loss) attributable to USG for the third quarter of 2014 included a litigation settlement charge of $48 million and long-lived asset impairment charges of $30 million and for the fourth quarter of 2014 included a long-lived asset impairment charge of $60 million, contract termination charge and loss of receivable of $15 million, and pension settlement charges of $13 million.

(c) Gross profit, operating profit, income (loss) from continuing operations, and net income (loss) attributable to USG for the fourth quarter of 2013 included pension settlement charges of $16 million.