Consolidating Guarantor Financial Information (Schedule of Consolidating Cash Flow Statements) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 762	$ 722	$ 638
Investing Activities
Capital expenditures on property, plant and equipment	(370)	(361)	(349)
Acquisitions, net of cash acquired	0	(23)	(8)
Proceeds from sale of businesses and assets, net	13	1	6
Deferred proceeds from Kelsterbach plant relocation	0	0	159
Capital expenditures related to Kelsterbach plant relocation	(7)	(49)	(204)
Return of capital from subsidiary	0	0	0
Contributions to subsidiary	0	0	0
Intercompany loan receipts (disbursements)	0	0	0
Other, net	(58)	(68)	(45)
Net cash provided by (used in) investing activities	(422)	(500)	(441)
Financing Activities
Short-term borrowings (repayments), net	(11)	2	(13)
Proceeds from short-term borrowings	177	71	70
Repayments of short-term borrowings	(123)	(71)	(73)
Proceeds from long-term debt	74	550	411
Repayments of long-term debt	(198)	(489)	(591)
Refinancing costs	(2)	(9)	(8)
Purchases of treasury stock, including related fees	(164)	(45)	(31)
Dividends to parent	0	0	0
Contributions from parent	0	0	0
Stock option exercises	9	62	20
Series A common stock dividends	(83)	(43)	(34)
Return of capital to parent	0	0	0
Other, net	(5)	21	(4)
Net cash provided by (used in) financing activities	(326)	49	(253)
Exchange rate effects on cash and cash equivalents	11	6	(2)
Net increase (decrease) in cash and cash equivalents	25	277	(58)
Cash and cash equivalents as of beginning of period	959	682	740
Cash and cash equivalents as of end of period	984	959	682
Parent Guarantor [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	228	7	41
Investing Activities
Capital expenditures on property, plant and equipment	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sale of businesses and assets, net	0	0	0
Deferred proceeds from Kelsterbach plant relocation	0	0	0
Capital expenditures related to Kelsterbach plant relocation	0	0	0
Return of capital from subsidiary	0	0	0
Contributions to subsidiary	0	0	0
Intercompany loan receipts (disbursements)	0	0	0
Other, net	0	0	0
Net cash provided by (used in) investing activities	0	0	0
Financing Activities
Short-term borrowings (repayments), net	0	0	0
Proceeds from short-term borrowings	0	0	0
Repayments of short-term borrowings	0	0	0
Proceeds from long-term debt	0	0	0
Repayments of long-term debt	0	0	0
Refinancing costs	0	0	0
Purchases of treasury stock, including related fees	(164)	(45)	(31)
Dividends to parent	0	0	0
Contributions from parent	0	0	0
Stock option exercises	9	62	20
Series A common stock dividends	(83)	(43)	(34)
Return of capital to parent	0	0	0
Other, net	0	29	4
Net cash provided by (used in) financing activities	(238)	3	(41)
Exchange rate effects on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	(10)	10	0
Cash and cash equivalents as of beginning of period	10	0	0
Cash and cash equivalents as of end of period	0	10	0
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	105	(100)	(127)
Investing Activities
Capital expenditures on property, plant and equipment	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sale of businesses and assets, net	0	0	0
Deferred proceeds from Kelsterbach plant relocation	0	0	0
Capital expenditures related to Kelsterbach plant relocation	0	0	0
Return of capital from subsidiary	0	0	100
Contributions to subsidiary	0	0	(100)
Intercompany loan receipts (disbursements)	5	5	5
Other, net	0	0	0
Net cash provided by (used in) investing activities	5	5	5
Financing Activities
Short-term borrowings (repayments), net	131	53	307
Proceeds from short-term borrowings	0	0	0
Repayments of short-term borrowings	0	0	0
Proceeds from long-term debt	24	500	400
Repayments of long-term debt	(34)	(414)	(532)
Refinancing costs	(2)	(9)	(8)
Purchases of treasury stock, including related fees	0	0	0
Dividends to parent	(229)	(35)	(45)
Contributions from parent	0	0	0
Stock option exercises	0	0	0
Series A common stock dividends	0	0	0
Return of capital to parent	0	0	0
Other, net	0	0	0
Net cash provided by (used in) financing activities	(110)	95	122
Exchange rate effects on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents as of beginning of period	0	0	0
Cash and cash equivalents as of end of period	0	0	0
Subsidiary Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	766	396	446
Investing Activities
Capital expenditures on property, plant and equipment	(249)	(170)	(145)
Acquisitions, net of cash acquired	0	(23)	(8)
Proceeds from sale of businesses and assets, net	0	1	1
Deferred proceeds from Kelsterbach plant relocation	0	0	0
Capital expenditures related to Kelsterbach plant relocation	0	0	0
Return of capital from subsidiary	0	0	0
Contributions to subsidiary	(20)	(3)	0
Intercompany loan receipts (disbursements)	(131)	(53)	(307)
Other, net	(45)	(9)	(15)
Net cash provided by (used in) investing activities	(445)	(257)	(474)
Financing Activities
Short-term borrowings (repayments), net	(8)	5	(5)
Proceeds from short-term borrowings	0	0	0
Repayments of short-term borrowings	0	0	0
Proceeds from long-term debt	50	50	0
Repayments of long-term debt	(121)	(10)	(9)
Refinancing costs	0	0	0
Purchases of treasury stock, including related fees	0	0	0
Dividends to parent	(229)	(35)	(45)
Contributions from parent	0	0	100
Stock option exercises	0	0	0
Series A common stock dividends	0	0	0
Return of capital to parent	0	0	0
Other, net	(4)	(7)	(8)
Net cash provided by (used in) financing activities	(312)	3	33
Exchange rate effects on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	9	142	5
Cash and cash equivalents as of beginning of period	275	133	128
Cash and cash equivalents as of end of period	284	275	133
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	154	489	368
Investing Activities
Capital expenditures on property, plant and equipment	(121)	(191)	(204)
Acquisitions, net of cash acquired	0	0	0
Proceeds from sale of businesses and assets, net	13	0	5
Deferred proceeds from Kelsterbach plant relocation	0	0	159
Capital expenditures related to Kelsterbach plant relocation	(7)	(49)	(204)
Return of capital from subsidiary	0	0	0
Contributions to subsidiary	0	0	0
Intercompany loan receipts (disbursements)	0	0	0
Other, net	(13)	(59)	(30)
Net cash provided by (used in) investing activities	(128)	(299)	(274)
Financing Activities
Short-term borrowings (repayments), net	(3)	(3)	(8)
Proceeds from short-term borrowings	177	71	70
Repayments of short-term borrowings	(123)	(71)	(73)
Proceeds from long-term debt	0	0	11
Repayments of long-term debt	(48)	(70)	(55)
Refinancing costs	0	0	0
Purchases of treasury stock, including related fees	0	0	0
Dividends to parent	(33)	0	0
Contributions from parent	20	3	0
Stock option exercises	0	0	0
Series A common stock dividends	0	0	0
Return of capital to parent	0	0	(100)
Other, net	(1)	(1)	0
Net cash provided by (used in) financing activities	(11)	(71)	(155)
Exchange rate effects on cash and cash equivalents	11	6	(2)
Net increase (decrease) in cash and cash equivalents	26	125	(63)
Cash and cash equivalents as of beginning of period	674	549	612
Cash and cash equivalents as of end of period	700	674	549
Consolidation Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(491)	(70)	(90)
Investing Activities
Capital expenditures on property, plant and equipment	0	0	0
Acquisitions, net of cash acquired	0	0	0
Proceeds from sale of businesses and assets, net	0	0	0
Deferred proceeds from Kelsterbach plant relocation	0	0	0
Capital expenditures related to Kelsterbach plant relocation	0	0	0
Return of capital from subsidiary	0	0	(100)
Contributions to subsidiary	20	3	100
Intercompany loan receipts (disbursements)	126	48	302
Other, net	0	0	0
Net cash provided by (used in) investing activities	146	51	302
Financing Activities
Short-term borrowings (repayments), net	(131)	(53)	(307)
Proceeds from short-term borrowings	0	0	0
Repayments of short-term borrowings	0	0	0
Proceeds from long-term debt	0	0	0
Repayments of long-term debt	5	5	5
Refinancing costs	0	0	0
Purchases of treasury stock, including related fees	0	0	0
Dividends to parent	491	70	90
Contributions from parent	(20)	(3)	(100)
Stock option exercises	0	0	0
Series A common stock dividends	0	0	0
Return of capital to parent	0	0	100
Other, net	0	0	0
Net cash provided by (used in) financing activities	345	19	(212)
Exchange rate effects on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents as of beginning of period	0	0	0
Cash and cash equivalents as of end of period	$ 0	$ 0	$ 0