Incomes Taxes (DTA and DTL) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Deferred Income Taxes [Abstract]
Intangibles	$ 527	$ 577
Property, net	149	103
LIFO inventory	30	54
Other	178	256
Total deferred tax liabilities	884	990
U.S. general business credit carryforwards, including Energy Tax Credits	934	555
Pensions	468	455
Loss carryforwards	554	351
Postretirement obligations	190	252
Foreign tax credit carryforwards	212	175
Research and development capitalization	200	153
Employee payroll and benefits	112	139
Accrued expenses	94	77
Product warranty accrual	60	68
Receivable and inventory allowances	47	48
Deferred Tax Assets, Other	166	212
Deferred Tax Assets, Gross	3,037	2,485
Deferred Tax Assets, Valuation Allowance	(208)	(193)
Deferred Tax Assets, Net	2,829	2,292
Deferred Tax Assets (Liabilities), Net	$ 1,945	$ 1,302

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The sum of the tax effects as of the balance sheet date of the amounts of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws ( before the valuation allowance, if any, to reduce such sum amount to net realizable value). Includes any tax benefit realized in deferred tax assets for significant impacts of tax planning strategies.