Stockholder's Equity (Details) (USD $)	1 Months Ended		12 Months Ended
	Dec. 31, 2012	Apr. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 12, 2007
Stockholders's Equity (Textuals) [Abstract]
Cash dividends declared per common share			$ 1.19625	$ 0.775	$ 0.485
Stock Issued During Period, Shares, New Issues	53,000,000	30,000,000
Equity Issuance, Per Share Amount	$ 31	$ 30.59
Proceeds from Issuance of Common Stock	$ 1,600,000,000	$ 887,000,000	$ 2,550,000,000	$ 49,000,000	$ 12,000,000
Exercise price of right						$ 50
Share of series A junior participating preferred stock available under each right						one two-hundredth
Minimum percentage for exercising right						15.00%
Threshold percentage to divest of common stock						14.90%
Redeemed price if rights have not exercised and expired in 2014						0.01
Minimum percentage of assets cash flow and earning power sold						50.00%
Each holder of a right shall have the right to receive, upon exercise, common stock of the acquiring company having a value						equal to two times the exercise price of the right
Debt Instrument [Line Items]
Convertible debebtures			6,000,000	14,000,000	2,000,000
Statement [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total	(362,000,000)		(362,000,000)	(389,000,000)
Cash flow hedges [Member]
Statement [Line Items]
Cash flow hedges	(1,000,000)		(1,000,000)	0
Foreign currency translation [Member]
Statement [Line Items]
Foreign currency translation	169,000,000		169,000,000	147,000,000
Pension and other postretirement benefits [Member]
Statement [Line Items]
Pension and other postretirement benefits	(530,000,000)		(530,000,000)	(539,000,000)
Equity securities [Member]
Statement [Line Items]
Equity securities	0		0	3,000,000
Jr. Subordinated Convertible Debt [Member]
Debt Instrument [Line Items]
Junior subordinated convertible debentures	5.50%		5.50%
Converted common stock outstanding			0
Original amount status	300,000,000		300,000,000
Convertible debebtures			6,000,000	14,000,000	2,000,000
Debentures converted into shares			1,000,000	1,000,000	0
Outstanding amount of debt to be used for conversion in to shares	$ 2,000,000		$ 2,000,000