Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Change in Total Shareholders' Equity

The following tables present the change in total shareholders’ equity for the six months ended June 30, 2015 and 2014, respectively:

($ in millions)	Total PPG Shareholders’ Equity			Non- controlling Interests			Total
Balance, January 1, 2015	$	5,180		$	85		$	5,265
Net income	659			10			669
Other comprehensive income, net of tax	(216		)	(5		)	(221		)
Cash dividends	(189		)	—			(189		)
Issuance of treasury stock	65			—			65
Stock repurchase program	(351		)	—			(351		)
Stock-based compensation activity	23			—			23
Other	—			(5		)	(5		)
Balance, June 30, 2015	$	5,171		$	85		$	5,256

($ in millions)	Total PPG Shareholders’ Equity			Non- controlling Interests			Total
Balance, January 1, 2014	$	4,932		$	266		$	5,198
Net income	1,648			45			1,693
Other comprehensive income, net of tax	79			4			83
Cash dividends	(177		)	—			(177		)
Issuance of treasury stock	52			—			52
Stock repurchase program	(300		)	—			(300		)
Stock-based compensation activity	24			—			24
Reduction in noncontrolling interests (Note 3)	(26		)	(180		)	(206		)
Distribution to noncontrolling interests	—			(46		)	(46		)
Balance, June 30, 2014	$	6,232		$	89		$	6,321