Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash provided by operating activities:
Net income	$ 403	$ 434	$ 423
Non-cash charges (credits) to net income:
Depreciation and amortization	194	211	211
Deferred income taxes	30	(3)	18
Write-off of impaired assets		24
Gain from change in benefit plans		(5)	(30)
Changes in working capital:
Accounts receivable and prepaid expenses	(69)	22	(134)
Inventories	76	(69)	(149)
Accounts payable and accrued liabilities	(78)	80	27
Decrease (increase) in margin accounts	14		(78)
Other	49	38	12
Cash provided by operating activities	619	732	300
Cash used for investing activities:
Capital expenditures	(298)	(313)	(263)
Short-term investments	19	(18)
Proceeds from disposal of plants and properties	3	9	3
Payments for acquisitions			(15)
Other	2		2
Cash used for investing activities	(274)	(322)	(273)
Cash provided by (used for) financing activities:
Payments on debt	(53)	(462)	(22)
Proceeds from borrowings	21	312	182
Debt issuance costs		(5)
Dividends paid (including to non-controlling interests)	(112)	(69)	(50)
Repurchases of common stock	(228)	(18)	(48)
Issuance of common stock	14	34	18
Excess tax benefit on share-based compensation	5	11	6
Cash provided by (used for) financing activities	(353)	(197)	86
Effects of foreign exchange rate changes on cash	(27)	(5)	(14)
Increase (decrease) in cash and cash equivalents	(35)	208	99
Cash and cash equivalents, beginning of period	609	401	302
Cash and cash equivalents, end of period	$ 574	$ 609	$ 401