Commitments and Contingencies (Unaudited)	6 Months Ended
Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Guarantees of Subsidiary Performance Obligations From time to time in the ordinary course of business, the company guarantees obligations of its subsidiaries under certain contracts. Generally, the company is liable under such an arrangement only if its subsidiary is unable to perform under its contract. Historically, the company has not incurred any substantial liabilities resulting from these guarantees. In addition, the company’s subsidiaries may enter into joint ventures, teaming and other business arrangements (collectively, Business Arrangements) to support the company’s products and services in domestic and international markets. The company generally strives to limit its exposure under these arrangements to its subsidiary’s investment in the Business Arrangements or to the extent of such subsidiary’s obligations under the applicable contract. In some cases, however, the company may be required to guarantee the performance of the Business Arrangements and, in such cases, the company generally obtains cross-indemnification from the other members of the Business Arrangements. At June 30, 2013, the company is not aware of any significant existing event of default that would require it to satisfy any of these guarantees. U.S. Government Cost Claims From time to time, the company is advised of claims by the U.S. Government concerning certain potential disallowed costs, plus, at times, penalties and interest. When such findings are presented, the company and the U.S. Government representatives engage in discussions to enable the company to evaluate the merits of these claims, as well as to assess the amounts being claimed. Where appropriate, provisions are made to reflect the company’s estimated exposure for matters raised by the U.S. Government. Such provisions are reviewed on a quarterly basis using the most recent information available. The company believes that it has adequately reserved for any disputed amounts and that the outcome of any such matters would not have a material adverse effect on its consolidated financial position as of June 30, 2013, or its annual results of operations or cash flows. Environmental Matters The company has been named a Potentially Responsible Party by the Environmental Protection Agency or similarly designated state or local agencies at certain current or formerly owned or leased sites. The estimated cost to complete remediation has been accrued where the company believes, based on the facts and circumstances known to the company, it is probable the company will incur costs to address environmental impacts. As of June 30, 2013, management estimates the range of reasonably possible future costs for environmental remediation is between $325 million and $779 million, before considering the amount recoverable through overhead charges on U.S. Government contracts. At June 30, 2013, the amount accrued for probable environmental remediation costs was $347 million, of which $98 million is accrued in other current liabilities and $249 million is accrued in other non-current liabilities. A portion of the environmental remediation costs is expected to be recoverable through overhead charges on government contracts and, accordingly, such amounts are deferred in inventoried costs and other non-current assets. As of June 30, 2013, $62 million is deferred in inventoried costs and $122 million is deferred in other non-current assets. These amounts are evaluated for recoverability on a routine basis. Although management cannot predict whether new information gained as projects progress or changes in facts and circumstances will materially affect the estimated liability accrued, management does not anticipate future remediation expenditures will have a material adverse effect on the company's consolidated financial position as of June 30, 2013, or its annual results of operations or cash flows. Financial Arrangements In the ordinary course of business, the company uses stand-by letters of credit and guarantees issued by commercial banks and surety bonds issued principally by insurance companies to guarantee the performance on certain obligations. At June 30, 2013, there were $203 million of stand-by letters of credit, $251 million of bank guarantees, and $166 million of surety bonds outstanding. Indemnifications The company has retained certain warranty, environmental, income tax, and other potential liabilities in connection with certain of its divestitures. The settlement of these liabilities is not expected to have a material adverse effect on the company’s consolidated financial position as of June 30, 2013, or its annual results of operations or cash flows. Operating Leases Rental expense for operating leases for the three and six months ended June 30, 2013, was $74 million and $148 million, respectively, and was $97 million and $181 million for the three and six months ended June 30, 2012, respectively. These amounts are net of immaterial amounts of sublease rental income.

COMMITMENTS AND CONTINGENCIES

Guarantees of Subsidiary Performance Obligations

From time to time in the ordinary course of business, the company guarantees obligations of its subsidiaries under certain contracts. Generally, the company is liable under such an arrangement only if its subsidiary is unable to perform under its contract. Historically, the company has not incurred any substantial liabilities resulting from these guarantees.

In addition, the company’s subsidiaries may enter into joint ventures, teaming and other business arrangements (collectively, Business Arrangements) to support the company’s products and services in domestic and international markets. The company generally strives to limit its exposure under these arrangements to its subsidiary’s investment in the Business Arrangements or to the extent of such subsidiary’s obligations under the applicable contract. In some cases, however, the company may be required to guarantee the performance of the Business Arrangements and, in such cases, the company generally obtains cross-indemnification from the other members of the Business Arrangements.

At June 30, 2013, the company is not aware of any significant existing event of default that would require it to satisfy any of these guarantees.

U.S. Government Cost Claims

From time to time, the company is advised of claims by the U.S. Government concerning certain potential disallowed costs, plus, at times, penalties and interest. When such findings are presented, the company and the U.S. Government representatives engage in discussions to enable the company to evaluate the merits of these claims, as well as to assess the amounts being claimed. Where appropriate, provisions are made to reflect the company’s estimated exposure for matters raised by the U.S. Government. Such provisions are reviewed on a quarterly basis using the most recent information available. The company believes that it has adequately reserved for any disputed amounts and that the outcome of any such matters would not have a material adverse effect on its consolidated financial position as of June 30, 2013, or its annual results of operations or cash flows.

Environmental Matters

The company has been named a Potentially Responsible Party by the Environmental Protection Agency or similarly designated state or local agencies at certain current or formerly owned or leased sites. The estimated cost to complete remediation has been accrued where the company believes, based on the facts and circumstances known to the company, it is probable the company will incur costs to address environmental impacts. As of June 30, 2013, management estimates the range of reasonably possible future costs for environmental remediation is between $325 million and $779 million, before considering the amount recoverable through overhead charges on U.S. Government contracts. At June 30, 2013, the amount accrued for probable environmental remediation costs was $347 million, of which $98 million is accrued in other current liabilities and $249 million is accrued in other non-current liabilities. A portion of the environmental remediation costs is expected to be recoverable through overhead charges on government contracts and, accordingly, such amounts are deferred in inventoried costs and other non-current assets. As of June 30, 2013, $62 million is deferred in inventoried costs and $122 million is deferred in other non-current assets. These amounts are evaluated for recoverability on a routine basis. Although management cannot predict whether new information gained as projects progress or changes in facts and circumstances will materially affect the estimated liability accrued, management does not anticipate future remediation expenditures will have a material adverse effect on the company's consolidated financial position as of June 30, 2013, or its annual results of operations or cash flows.

Financial Arrangements

In the ordinary course of business, the company uses stand-by letters of credit and guarantees issued by commercial banks and surety bonds issued principally by insurance companies to guarantee the performance on certain obligations. At June 30, 2013, there were $203 million of stand-by letters of credit, $251 million of bank guarantees, and $166 million of surety bonds outstanding.

Indemnifications

The company has retained certain warranty, environmental, income tax, and other potential liabilities in connection with certain of its divestitures. The settlement of these liabilities is not expected to have a material adverse effect on the company’s consolidated financial position as of June 30, 2013, or its annual results of operations or cash flows.

Operating Leases

Rental expense for operating leases for the three and six months ended June 30, 2013, was $74 million and $148 million, respectively, and was $97 million and $181 million for the three and six months ended June 30, 2012, respectively. These amounts are net of immaterial amounts of sublease rental income.