Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities
Net income attributable to the controlling and noncontrolling interests	$ 3,353	$ 1,064	$ 1,212
Income from discontinued operations, net of tax	2,197	228	250
Income from continuing operations	1,156	836	962
Adjustments to reconcile to cash from operations:
Depreciation and amortization	475	421	425
Pension expense	107	143	120
Business restructuring	98	208	0
Environmental remediation charge	101	159	0
Stock-based compensation expense	81	71	34
Equity affiliate losses (earnings), net of dividends	17	3	(17)
Deferred income taxes	(36)	(212)	(19)
Cash contributions to pension plans	(174)	(80)	(113)
Restructuring cash spending	(87)	(88)	(18)
Change in certain asset and liability accounts (net of acquisitions):
Receivables	44	148	(107)
Inventories	43	48	(74)
Other current assets	(29)	1	(25)
Accounts payable and accrued liabilities	(21)	(58)	5
Noncurrent assets	(9)	(24)	2
Noncurrent liabilities	(92)	(27)	(16)
Taxes and interest payable	78	55	62
Other	57	(28)	(45)
Cash from operating activities - continuing operations	1,809	1,576	1,176
Cash (used for)/from operating activities - discontinued operations	(18)	211	260
Cash from operating activities	1,791	1,787	1,436
Investing activities
Additions to property and investments	(515)	(363)	(326)
Business acquisitions, net of cash balances acquired (See Note 2)	(983)	(122)	(31)
Proceeds from separation and merger of commodity chemicals business, net	940	0	0
Proceeds from maturity of short-term investments	1,796	250	749
Purchase of short-term investments	(1,227)	(1,332)	(125)
Payments on cross currency swap contracts	(42)	(23)	(10)
Proceeds from termination of cross currency swap contracts	37	1	0
Collection of notes receivable, equity affiliate	0	0	90
Return of capital, equity affiliate	0	0	78
Proceeds from the sale of property, plant and equipment and other assets	0	40	27
Other	(2)	(16)	(13)
Cash from/(used for) investing activities - continuing operations	4	(1,565)	439
Cash (used for) investing activities - discontinued operations	(1)	(46)	(86)
Cash from/(used for) investing activities	3	(1,611)	353
Financing activities
Net change in borrowings with maturities of three months or less	(7)	(1)	9
Proceeds from long term debt (net of discount and issuance costs) (See Note 8)	0	397	0
Repayment of long-term debt (See Note 8)	(605)	(71)	(400)
Repayment of acquired debt (See Note 8)	0	(119)	0
Settlement of forward starting swaps	0	(121)	0
Proceeds from termination of interest rate swaps	0	29	19
Purchase of treasury stock	(1,000)	(92)	(858)
Issuance of treasury stock	68	122	81
Dividends paid on subsidiary common stock to noncontrolling interests	(90)	(98)	(98)
Dividends paid on PPG common stock	(345)	(358)	(355)
Other	0	(26)	(22)
Cash used for financing activities - continuing operations	(1,979)	(338)	(1,624)
Cash used for financing activities - discontinued operations	0	(13)	(8)
Cash used for financing activities	(1,979)	(351)	(1,632)
Effect of currency exchange rate changes on cash and cash equivalents	(5)	24	(41)
Net (decrease) / increase in cash and cash equivalents	(190)	(151)	116
Cash and cash equivalents, beginning of year	1,306	1,457	1,341
Cash and cash equivalents, end of year	$ 1,116	$ 1,306	$ 1,457