Northrop Grumman (NOC) 10-K 3 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Jan. 30, 2014	Jun. 28, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'NORTHROP GRUMMAN CORP /DE/	'	'
Entity Central Index Key	'0001133421	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'2013	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Period Focus	'FY	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Public Float	'	'	$15.80
Entity Common Stock, Shares Outstanding	'	216,737,248	'

Consolidated_Statements_of_Ear

Consolidated Statements of Earnings and Comprehensive Income (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Sales	'	'	'
Product	$14,033	$13,838	$15,073
Service	10,628	11,380	11,339
Total sales	24,661	25,218	26,412
Operating costs and expenses	'	'	'
Product	10,623	10,415	11,491
Service	8,659	9,223	9,295
General and administrative expenses	2,256	2,450	2,350
Operating income	3,123	3,130	3,276
Other (expense) income	'	'	'
Interest expense	-257	-212	-221
Other, net	-3	47	28
Earnings from continuing operations before income taxes	2,863	2,965	3,083
Federal and foreign income tax expense	911	987	997
Earnings from continuing operations	1,952	1,978	2,086
Earnings from discontinued operations, net of tax	0	0	32
Net earnings	1,952	1,978	2,118
Basic earnings per share	'	'	'
Continuing operations (in dollars per share)	$8.50	$7.96	$7.54
Discontinued operations (in dollars per share)	$0	$0	$0.11
Basic earnings per share (in dollars per share)	$8.50	$7.96	$7.65
Weighted-average common shares outstanding, in millions	229.6	248.6	276.8
Diluted earnings per share	'	'	'
Continuing operations (in dollars per share)	$8.35	$7.81	$7.41
Discontinued operations (in dollars per share)	$0	$0	$0.11
Diluted earnings per share (in dollars per share)	$8.35	$7.81	$7.52
Weighted-average diluted shares outstanding, in millions	233.9	253.4	281.6
Net earnings (from above)	1,952	1,978	2,118
Other comprehensive income	'	'	'
Change in unamortized benefit plan costs, net of tax (expense) benefit of ($1,177) in 2013, $860 in 2012 and $823 in 2011	1,790	-1,303	-1,249
Change in cumulative translation adjustment	14	8	-4
Change in unrealized loss on marketable securities and cash flow hedges, net of tax benefit of $1 in 2013, $0 in 2012 and $2 in 2011	-1	-2	-4
Other comprehensive income (loss), net of tax	1,803	-1,297	-1,257
Comprehensive income	$3,755	$681	$861

Consolidated_Statements_of_Ear1

Consolidated Statements of Earnings and Comprehensive Income (Parenthetical) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]	'	'	'
Tax benefit on the change in unrealized loss on marketable securities and cash flow hedges	$1	$0	$2
Tax (expense) benefit on the change in unamortized benefit plan costs	($1,177)	$860	$823

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Position (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Assets	'	'
Cash and cash equivalents	$5,150	$3,862
Accounts receivable, net	2,685	2,858
Inventoried costs, net	698	798
Deferred tax assets	605	574
Prepaid expenses and other current assets	350	300
Total current assets	9,488	8,392
Property, plant and equipment, net of accumulated depreciation of $4,337 in 2013 and $4,146 in 2012	2,806	2,887
Goodwill	12,438	12,431
Non-current deferred tax assets	209	1,542
Other non-current assets	1,440	1,291
Total assets	26,381	26,543
Liabilities	'	'
Trade accounts payable	1,229	1,392
Accrued employee compensation	1,169	1,173
Advance payments and amounts in excess of costs incurred	1,722	1,759
Other current liabilities	1,695	1,732
Total current liabilities	5,815	6,056
Long-term debt, net of current portion of $2 in 2013 and $5 in 2012	5,928	3,930
Pension and other post-retirement benefit plan liabilities	2,954	6,085
Other non-current liabilities	1,064	958
Total liabilities	15,761	17,029
Commitments and contingencies (Note 12)	'	'
Shareholders’ equity	'	'
Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $1 par value; 800,000,000 shares authorized; issued and outstanding: 2013—217,599,230 and 2012—239,209,812	218	239
Paid-in capital	848	2,924
Retained earnings	12,538	11,138
Accumulated other comprehensive loss	-2,984	-4,787
Total shareholders’ equity	10,620	9,514
Total liabilities and shareholders’ equity	$26,381	$26,543

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Position (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Accumulated depreciation	$4,337	$4,146
Long-term Debt, current portion	$2	$5
Preferred Stock, par value	$1	$1
Preferred Stock, shares authorized	10,000,000	10,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common stock, par value	$1	$1
Common stock, shares authorized	800,000,000	800,000,000
Common stock, shares issued	217,599,230	239,209,812
Common stock, shares outstanding	217,599,230	239,209,812

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Sources of cash—continuing operations	'	'	'
Cash received from customers	$24,631	$25,364	$26,431
Other cash receipts	99	99	149
Total sources of cash—continuing operations	24,730	25,463	26,580
Uses of cash—continuing operations	'	'	'
Cash paid to suppliers and employees	-20,473	-21,074	-22,059
Pension contributions	-579	-367	-1,084
Interest paid, net of interest received	-234	-200	-227
Income taxes paid, net of refunds received	-880	-1,119	-810
Other cash payments	-81	-63	-53
Total uses of cash—continuing operations	-22,247	-22,823	-24,233
Cash provided by continuing operations	2,483	2,640	2,347
Cash used in discontinued operations	0	0	-232
Net cash provided by operating activities	2,483	2,640	2,115
Continuing operations	'	'	'
Capital expenditures	-364	-331	-492
Maturities of short-term investments	0	250	200
Contribution received from the spin-off of shipbuilding business	0	0	1,429
Purchases of short-term investments	0	0	-450
Other investing activities, net	18	-3	56
Cash (used in) provided by investing activities from continuing operations	-346	-84	743
Cash used in investing activities from discontinued operations	0	0	-63
Net cash (used in) provided by investing activities	-346	-84	680
Financing activities	'	'	'
Net proceeds from issuance of long-term debt	2,841	0	0
Common stock repurchases	-2,371	-1,316	-2,295
Payments of long-term debt	-877	0	-768
Cash dividends paid	-545	-535	-543
Proceeds from exercises of stock options	184	188	101
Other financing activities, net	-81	-33	11
Net cash used in financing activities	-849	-1,696	-3,494
Increase (decrease) in cash and cash equivalents	1,288	860	-699
Cash and cash equivalents, beginning of year	3,862	3,002	3,701
Cash and cash equivalents, end of year	$5,150	$3,862	$3,002

Consolidated_Statements_of_Cas1

Consolidated Statements of Cash Flows Indirect Method (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of net earnings to net cash provided by operating activities	'	'	'
Net earnings	$1,952	$1,978	$2,118
Net earnings from discontinued operations	0	0	32
Adjustments to reconcile to net cash provided by operating activities:	'	'	'
Depreciation and amortization	495	510	544
Stock-based compensation	144	183	140
Excess tax benefits from stock-based compensation	-43	-45	-17
Deferred income taxes	128	78	441
(Increase) decrease in assets:	'	'	'
Accounts receivable, net	171	90	350
Inventoried costs, net	101	46	-2
Prepaid expenses and other assets	-51	-65	16
Increase (decrease) in liabilities:	'	'	'
Accounts payable and accruals	-169	23	-341
Income taxes payable	2	-75	-32
Retiree benefits	-281	-71	-904
Other, net	34	-12	66
Cash provided by continuing operations	2,483	2,640	2,347
Cash used in discontinued operations	0	0	-232
Net cash provided by operating activities	$2,483	$2,640	$2,115

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Shareholders' Equity (USD $)	Total	Common stock	Paid-in capital	Retained earnings	Accumulated other comprehensive loss
In Millions, except Per Share data
Beginning of year at Dec. 31, 2010	'	$291	$7,778	$8,124	($2,757)
Common stock repurchased	'	-40	-2,264	'	'
Shares issued for stock awards and options	'	3	236	'	'
Other comprehensive income, net of tax	-1,257	'	'	'	-1,257
Shipbuilding spin-off adjustment	'	'	-1,877	'	524
Net earnings	2,118	'	'	2,118	'
Dividends declared	'	'	'	-543	'
Cash dividends declared per share	$1.97	'	'	'	'
End of year at Dec. 31, 2011	10,336	254	3,873	9,699	-3,490
Common stock repurchased	'	-21	-1,310	'	'
Shares issued for stock awards and options	'	6	359	'	'
Other comprehensive income, net of tax	-1,297	'	'	'	-1,297
Shipbuilding spin-off adjustment	'	'	2	'	0
Net earnings	1,978	'	'	1,978	'
Dividends declared	'	'	'	-539	'
Cash dividends declared per share	$2.15	'	'	'	'
End of year at Dec. 31, 2012	9,514	239	2,924	11,138	-4,787
Common stock repurchased	'	-27	-2,345	'	'
Shares issued for stock awards and options	'	6	274	'	'
Other comprehensive income, net of tax	1,803	'	'	'	1,803
Shipbuilding spin-off adjustment	'	'	-5	'	0
Net earnings	1,952	'	'	1,952	'
Dividends declared	'	'	'	-552	'
Cash dividends declared per share	$2.38	'	'	'	'
End of year at Dec. 31, 2013	$10,620	$218	$848	$12,538	($2,984)

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Summary of Significant Accounting Policies	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Nature of Operations
	Northrop Grumman Corporation (herein referred to as “Northrop Grumman,” the “company,” “we,” “us,” or “our”) is a leading global security company providing innovative systems, products and solutions in unmanned systems, cybersecurity, C4ISR, and logistics and modernization to government and commercial customers worldwide through four segments: Aerospace Systems, Electronic Systems, Information Systems and Technical Services. We participate in many high-priority defense and government services programs in the United States (U.S.) and abroad as a prime contractor, principal subcontractor, partner, or preferred supplier. We conduct the majority of our business with the U.S. Government, principally the Department of Defense (DoD) and intelligence community. We also conduct business with foreign, state, and local governments, as well as domestic and international commercial customers.
	Principles of Consolidation
	The consolidated financial statements include the accounts of Northrop Grumman and its subsidiaries. All material intercompany accounts, transactions, and profits are eliminated in consolidation. Investments in equity securities and joint ventures where the company has significant influence, but not control, are accounted for using the equity method.
	Accounting Estimates
	The company’s financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (GAAP). The preparation thereof requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Estimates have been prepared using the most current and best available information; however, actual results could differ materially from those estimates.
	Related Party Transactions
	For all periods presented, the company had no material related party transactions.
	Revenue Recognition
	The majority of our business results are derived from long-term contracts with the U.S. Government for the production of goods, the provision of services, or in some cases, a combination of both. In accounting for these contracts, we utilize either the cost-to-cost or the units-of-delivery method of percentage-of-completion accounting. Generally, sales under cost-reimbursement contracts and construction-type contracts that provide for deliveries at lower volume rates per year or a small number of units are accounted for using the cost-to-cost method. Under this method, sales, including estimated profits, are recorded as costs are incurred. Generally, sales under contracts that provide for deliveries at higher volume rates per year or a large number of units are accounted for using the units-of-delivery method. Under this method, sales are recognized as units are delivered to the customer. The company estimates profit on contracts as the difference between total estimated revenue and total estimated cost of a contract at completion and recognizes that profit either as costs are incurred (cost-to-cost) or as units are delivered (units-of-delivery). The company classifies revenue as product or service depending upon the predominant attributes of the contract.
	Contract revenues may include estimated amounts not contractually agreed to by the customer, including price redetermination, cost or performance incentives (such as award and incentive fees), un-priced change orders, claims, and requests for equitable adjustment. Amounts pertaining to provisions for price redetermination or for cost and/or performance incentives are included in sales when they are reasonably estimable. Further, as contracts are performed, change orders can be a regular occurrence and may be un-priced until negotiated with the customer. Un-priced change orders are included in revenue when they are probable of recovery in an amount at least equal to the cost. Amounts representing claims (including change orders unapproved as to both scope and price) and requests for equitable adjustment are included in estimated contract revenue only when they are reliably estimable and realization is probable. As of December 31, 2013, the recognized amounts related to claims and requests for equitable adjustment are not material individually or in the aggregate.
	The company's U.S. Government contracts generally contain provisions that enable the customer to terminate a contract for default, or for the convenience of the government. If a contract is terminated for default, the contractor may not be entitled to recover any of its costs on partially completed work and may be liable to the government for re-procurement costs of acquiring similar products or services from another contractor, and for certain other damages. Termination of a contract for the convenience of the government may occur when the government concludes it is in the best interests of the government that the contract be terminated. Under a termination for convenience, the contractor is typically entitled to be paid in accordance with the contract’s terms for costs incurred prior to the effective date of termination, plus a reasonable profit and settlement expenses. At December 31, 2013, the company does not have any contract terminations in process that would have a material effect on our consolidated financial position, annual results of operations and/or cash flows.
	Changes in estimates of contract sales, costs, or profits are recognized using the cumulative catch-up method of accounting. This method recognizes, in the current period, the cumulative effect of the changes on current and prior periods. Revenue and profit on future periods of contract performance are recognized as if the revised estimate had been used since contract inception. If it is determined that a loss will result from the performance of a contract, the entire amount of the estimable future loss is charged against income in the period the loss is identifiable. Loss provisions are first offset against costs that are included in unbilled accounts receivable or inventoried costs, and any remaining amount is reflected in liabilities.
	Changes in contract estimates occur for a variety of reasons, including changes in contract scope, estimated revenue and cost estimates. These changes are often driven by events such as changes in estimated incentive fees, unanticipated risks affecting contract costs, the resolution of risk at lower or higher cost than anticipated, and changes in indirect cost allocations, such as overhead and general and administrative expenses. We employ an extensive contract management process involving several functional organizations and numerous personnel who are skilled at managing contract activities. Changes in estimates are frequent; the company performs on a broad portfolio of long-term contracts, many of which include complex and customized aerospace and electronic equipment and software, that often include technology at the forefront of science.
	Significant changes in estimates on a single contract could have a material effect on the company's consolidated financial position or annual results of operations, and where such changes occur, separate disclosure is made of the nature, underlying conditions and financial impact of the change. Aggregate net changes in contract estimates recognized using the cumulative catch-up method of accounting increased operating income by $753 million ($2.09 per diluted share) in 2013, $985 million ($2.53 per diluted share) in 2012 and $738 million ($1.70 per diluted share) in 2011. No discrete event or adjustments to an individual contract were material to the consolidated statements of earnings and comprehensive income for any of these periods.
	General and Administrative Expenses
	In accordance with industry practice and regulations that govern the cost accounting requirements for government contracts, most general and administrative expenses incurred at both the segment and corporate locations are considered allowable and allocable costs on government contracts. These costs are allocated to contracts in progress on a systematic basis and are included as a component of total contract costs, including any provision for loss contracts.
	Research and Development
	Company-sponsored research and development activities primarily include independent research and development (IR&D) efforts related to government programs. Company-sponsored IR&D expenses are included in general and administrative expenses in the consolidated statements of earnings and comprehensive income and are generally allocated to government contracts. Company-sponsored IR&D expenses totaled $507 million, $520 million and $543 million, in 2013, 2012 and 2011, respectively. Expenses for research and development funded by the customer are charged directly to the related contracts.
	Environmental Costs
	Environmental liabilities are accrued when the company determines that, based on the facts and circumstances known to the company, such amounts are reasonably estimable and it is probable a liability will be found to have been incurred. When only a range of amounts is established and no amount within the range is more probable than another, the low end of the range is recorded. The company typically projects environmental costs for up to 30 years and records environmental liabilities on an undiscounted basis, and does not include legal costs or asset retirement obligations. At sites involving multiple parties, the company accrues environmental liabilities based upon our expected share of liability, taking into account the financial viability of other jointly liable parties. Environmental expenditures are capitalized or expensed, as appropriate. As a portion of environmental remediation costs is expected to be recoverable through overhead charges on government contracts, such amounts are deferred in inventoried costs (current portion) and other non-current assets. Certain capitalized expenditures relate to long-lived improvements in currently operating facilities. The portion of environmental expenditures not expected to be recoverable is expensed. The company does not record insurance recoveries before collection is probable. At December 31, 2013 and 2012, the company did not have any accrued receivables related to insurance reimbursements.
	Fair Value of Financial Instruments
	The company utilizes fair value measurement guidance prescribed by GAAP to value its financial instruments. The guidance includes a definition of fair value, prescribes methods for measuring fair value, establishes a fair value hierarchy based on the inputs used to measure fair value and expands disclosures about the use of fair value measurements.
	The valuation techniques utilized are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect internal market assumptions.
	These two types of inputs create the following fair value hierarchy:
	Level 1 - Quoted prices for identical instruments in active markets.
	Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.
	Level 3 - Significant inputs to the valuation model are unobservable.
	Marketable securities accounted for as trading and available-for-sale are recorded at fair value. For available-for-sale securities, any changes in unrealized gains and losses are reported as a component of other comprehensive income. Changes in unrealized gains and losses on trading securities are included in other, net in the consolidated statements of earnings and comprehensive income. In addition, investments in held-to-maturity instruments with original maturities greater than three months are recorded at amortized cost.
	Derivative financial instruments are recognized as assets or liabilities in the financial statements and measured at fair value. Changes in the fair value of derivative financial instruments that qualify and are designated as fair value hedges are recorded in earnings from continuing operations, while the effective portion of the changes in the fair value of derivative financial instruments that qualify and are designated as cash flow hedges are recorded as a component of other comprehensive income. The company may use derivative financial instruments to manage its exposure to interest rate and foreign currency exchange risks and to balance its fixed and variable rate long-term debt portfolio. The company does not use derivative financial instruments for trading or speculative purposes, nor does it use leveraged financial instruments. Credit risk related to derivative financial instruments is considered minimal and is managed by requiring high credit standards for counterparties and through periodic settlements of positions. For derivative financial instruments not designated as cash flow hedging instruments, gains or losses resulting from changes in the fair value are reported in other, net in the consolidated statements of earnings and comprehensive income.
	Income Taxes
	Provisions for federal and foreign income taxes are calculated on reported financial statement pre-tax income based on current tax law and include the cumulative effect of any changes in tax rates from those used previously in determining deferred tax assets and liabilities. Such provisions differ from the amounts currently payable because certain items of income and expense are recognized in different periods for financial reporting purposes than for income tax purposes. The company recognizes federal interest accrued related to unrecognized tax benefits in income tax expense. Federal penalties are recognized as a component of income tax expense. In accordance with industry practice and regulations that govern the cost accounting requirements for government contracts, state and local income and franchise taxes are considered allowable and allocable costs on government contracts and are therefore recorded in operating costs and expenses. The company recognizes state interest accrued related to unrecognized tax benefits in unallowable operating costs and expenses.
	Uncertain tax position represents the company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return or claim, that has not been reflected in measuring income tax expense for financial reporting purposes. Until these positions are sustained by the taxing authorities or the statute of limitations concerning such issues lapses, the company does not recognize the tax benefits resulting from such positions and reports the tax effects as a liability for uncertain tax positions in its consolidated statements of financial position.
	Cash and Cash Equivalents
	Cash and cash equivalents are comprised of cash in banks and highly liquid instruments with original maturities of three months or less, primarily consisting of bank time deposits and investments in institutional money market funds. The company does not invest in high yield or high risk securities. Cash in bank accounts at times may exceed federally insured limits.
	Accounts Receivable and Inventoried Costs
	Accounts receivable include amounts billed and currently due from customers, as well as amounts currently due but unbilled (primarily related to costs incurred on contracts accounted for under the cost-to-cost method of percentage-of-completion accounting). Accounts receivable also include certain estimated contract change amounts, claims or requests for equitable adjustment in negotiation that are probable of recovery and amounts retained by the customer pending contract completion.
	Accumulated contract costs in unbilled accounts receivable and inventoried costs include direct production costs, factory and engineering overhead, production tooling costs, and, for government contracts, allowable general and administrative expenses. According to the provisions of U.S. Government contracts, the customer asserts title to, or a security interest in, inventories related to such contracts as a result of contract advances, performance-based payments, and progress payments. In accordance with industry practice, unbilled accounts receivable and inventoried costs are classified as current assets and include amounts related to contracts having production cycles longer than one year. Payments received in excess of inventoried costs and unbilled accounts receivable amounts on a contract by contract basis are recorded as advance payments and amounts in excess of costs incurred in the consolidated statements of financial position.
	Inventoried costs primarily relate to work in process on contracts accounted for under the units-of-delivery method of percentage-of-completion accounting. These costs represent accumulated contract costs less the portion of such costs allocated to delivered items. Product inventory primarily consists of raw materials and is stated at the lower of cost or market, generally using the average cost method.
	Property, Plant and Equipment
	Property, plant and equipment are depreciated over the estimated useful lives of individual assets. Most of these assets are depreciated using declining-balance methods, with the remainder using the straight-line method. Major classes of property, plant and equipment and their useful lives are as follows:
					December 31
	Useful life in years, $ in millions		Useful Life		2013				2012
	Land and land improvements		Up to 40(1)			$373				$373
	Buildings and improvements		Up to 45		1,450				1,421
	Machinery and other equipment		Up to 20		4,243				4,233
	Capitalized software costs		5-Mar		418				413
	Leasehold improvements		Length of Lease(1)		659				593
	Property, plant and equipment, at cost				7,143				7,033
	Accumulated depreciation				(4,337		)		(4,146		)
	Property, plant and equipment, net					$2,806				$2,887
	-1	Land is not a depreciable asset. Leasehold improvements are depreciated over the useful life of the asset if it is shorter than the length of the lease.
	Leases
	The company uses its incremental borrowing rate in the assessment of lease classification as capital or operating and defines the initial lease term to include renewal options determined to be reasonably assured. The majority of our leases are operating leases.
	Many of the company’s real property lease agreements contain incentives for tenant improvements, rent holidays, or rent escalation clauses. For tenant improvement incentives, the company records a deferred rent liability and amortizes the deferred rent over the term of the lease as a reduction to rent expense. For rent holidays and rent escalation clauses during the lease term, the company records rental expenses on a straight-line basis over the term of the lease. For purposes of recognizing lease incentives, the company uses the date of initial possession as the commencement date, which is generally when the company is given the right of access to the space and begins to make improvements in preparation of intended use.
	Goodwill and Other Purchased Intangible Assets
	The company performs impairment tests for goodwill annually or when the company believes a potential impairment exists. When it is determined that impairment has occurred, a charge to operations is recorded. Goodwill and other purchased intangible asset balances are included in the identifiable assets of the business segment to which they have been assigned. Purchased intangible assets are generally amortized on a straight-line basis over their estimated useful lives. In the fourth quarter of 2013, the company changed the date of its annual goodwill impairment test from November 30 to December 31. This change in accounting principle is preferable as it aligns the timing of our annual goodwill impairment test with our year-end financial reporting process. This change did not result in the acceleration, delay or avoidance of an impairment charge. The company applied the change in the annual impairment date retrospectively to January 1, 2011; it is impracticable to objectively determine valuation estimates necessary to apply the change in periods prior to that date. There were no changes in previously reported amounts as a result of retrospectively applying the change in the annual impairment testing date. As a result of this change, during 2013, we performed an annual goodwill impairment test as of November 30 and as of December 31.
	Cash Surrender Value of Life Insurance Policies
	The company maintains whole life insurance policies on a group of executives, which are recorded at their cash surrender value as determined by the insurance carrier. The company also has split-dollar life insurance policies on former officers and executives from acquired businesses, which are recorded at the lesser of their cash surrender value or premiums paid. These policies are utilized as a partial funding source for deferred compensation and other non-qualified employee retirement plans. As of December 31, 2013 and 2012, the carrying values associated with these policies are $287 million and $271 million, respectively, and are recorded in other non-current assets in the consolidated statements of financial position.
	Litigation, Commitments and Contingencies
	Amounts associated with litigation, commitments, and contingencies are recorded as charges to earnings when management, after taking into consideration the facts and circumstances of each matter as then known to management, including any settlement offers, has determined it is probable a liability will be found to have been incurred and the amount of the loss can be reasonably estimated. When only a range of amounts is established and no amount within the range is more likely than another, the low end of the range is recorded. Legal fees are expensed as incurred.
	Retirement Benefits
The company sponsors various pension plans covering substantially all employees. The company also provides post-retirement benefit plans other than pensions, consisting principally of health care and life insurance benefits, to eligible retirees and qualifying dependents. The liabilities, unamortized benefit plan costs and annual income or expense of the company’s pension and other post-retirement benefit plans are determined using methodologies that involve several actuarial assumptions, the most significant of which are the discount rate, the expected long-term rate of return on plan assets, and the cash balance crediting rate. Unamortized benefit plan costs consist primarily of accumulated net after-tax actuarial losses.
Because U.S. Government regulations require that the costs of pension and other post-retirement plans be charged to our contracts with customers in accordance with the Federal Acquisition Regulation and the related CAS (U.S. Government Cost Accounting Standards) that govern such plans, we calculate retiree benefit plan costs under both CAS and FAS (GAAP Financial Accounting Standards) methods. While both FAS and CAS recognize a normal service cost component in measuring periodic pension cost, there are differences in the way the remaining components of annual pension costs are calculated under each method. Measuring plan obligations under FAS and CAS methods utilize different assumptions and models, such as in estimating earnings on plan assets and calculating interest expense. In addition, the periods over which gains/losses related to pension assets and actuarial changes are amortized are different under each FAS/CAS method. As a result, annual retiree benefit plan expense amounts for FAS are different from the amounts for CAS even though the ultimate cost of providing benefits is the same under either method. CAS retiree benefit plan costs are charged to contracts and are included in segment operating income, and the difference between CAS and FAS expense is recorded in operating income at the consolidated company level.
Net actuarial gains or losses are amortized to expense on a plan-by-plan basis when they exceed the accounting corridor. The accounting corridor is a defined range within which amortization of net gains and losses is not required and is equal to 10 percent of the greater of the plan assets or benefit obligations. Gains or losses outside of the corridor are subject to amortization over our average employee future service period of approximately nine years. The fair values of plan assets are determined based on prevailing market prices or estimated fair value for investments with no available quoted prices. Not all net periodic pension expense is recognized in net earnings in the year incurred because it is allocated as production costs and a portion remains in inventory at the end of a reporting period. The company’s funding policy for the qualified pension plans is to contribute, at a minimum, the statutorily required amount to an irrevocable trust.
Stock Compensation
The company’s stock compensation plans are classified as equity plans and compensation expense is recognized over the vesting period (generally three years), net of estimated forfeitures. The company issues stock awards in the form of restricted performance stock rights and restricted stock rights under its existing plans. The fair value of stock awards is determined based on the closing market price of the company’s common stock on the grant date. At each reporting date, the number of shares is adjusted to equal the number ultimately expected to vest.
Foreign Currency Translation
For operations outside the U.S. that have functional currencies other than the U.S. dollar, results of operations and cash flows are translated at average exchange rates during the period, and assets and liabilities are translated at end-of-period exchange rates. Translation adjustments are generally included as a component of other comprehensive income in the consolidated statements of earnings and comprehensive income.
Accounting Standards Updates
Accounting standards updates effective after December 31, 2013, are not expected to have a material effect on the company’s financial position, annual results of operations and/or cash flows.
Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss are as follows:
		December 31
$ in millions		2013				2012
Unamortized benefit plan costs, net of tax benefit of $1,972 in 2013 and $3,149 in 2012			($3,000	)			($4,790	)
Cumulative translation adjustment		18				4
Net unrealized loss on marketable securities and cash flow hedges, net of tax benefit of $1 in 2013 and $0 in 2012		(2		)		(1		)
Total accumulated other comprehensive loss			($2,984	)			($4,787	)
Unamortized benefit plan costs consist primarily of net after-tax actuarial losses totaling $3.3 billion and $5.1 billion as of December 31, 2013 and 2012, respectively. Net actuarial gains or losses are re-determined annually and principally arise from changes in the rate used to discount our benefit obligations, as well as differences in expected and actual returns on plan assets.
Reclassifications from other comprehensive income to net earnings related to the amortization of benefit plan costs were losses of $319 million, $204 million and $91 million, net of taxes, for the years ended December 31, 2013, 2012 and 2011, respectively. The reclassifications represent the amortization of net actuarial losses and prior service credits for the company's retirement benefit plans, and are included in the computation of net periodic pension cost (See Note 13 for further information).
Reclassifications from other comprehensive income to net earnings, relating to cumulative translation adjustments, marketable securities and effective cash flow hedges for the years ended December 31, 2013, 2012 and 2011, respectively, were not material. Reclassifications for cumulative translation adjustments and marketable securities are recorded in other income, and reclassifications for effective cash flow hedges are recorded in operating income.

Earnings_Per_Share_Share_Repur

Earnings Per Share, Share Repurchases and Dividends on Common Stock	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share, Share Repurchases and Dividends on Common Stock	'
	EARNINGS PER SHARE, SHARE REPURCHASES AND DIVIDENDS ON COMMON STOCK
	Basic Earnings Per Share
	Basic earnings per share from both continuing and discontinued operations are calculated by dividing the respective earnings by the weighted-average number of shares of common stock outstanding during each period.
	Diluted Earnings Per Share
	Diluted earnings per share includes the dilutive effect of awards granted to employees under stock-based compensation plans. The dilutive effect of these securities totaled 4.3 million, 4.8 million and 4.8 million shares for the years ended December 31, 2013, 2012 and 2011, respectively. The weighted-average diluted shares outstanding for the years ended December 31, 2012 and 2011, excludes anti-dilutive stock options to purchase approximately 1.8 million and 2.8 million shares, respectively, because such options have exercise prices in excess of the average market price of the company’s common stock during the year. We had no anti-dilutive stock options outstanding for the year ended December 31, 2013.
	Share Repurchases
	The table below summarizes the company’s share repurchases:
	Repurchase Program		Amount		Total Shares Retired (in millions)	Average		Date Completed	Shares Repurchased
	Authorization Date		Authorized			Price			(in millions)
			(in millions)			Per Share(2)			Year Ended December 31
									2013	2012	2011
	16-Jun-10			$5,350	83.7		$63.86	Sep-13	18.6	20.9	40.2
	May 15, 2013(1)			$4,000	8.7		$103.37		8.7	—	—
									27.3	20.9	40.2
	-1	On May 15, 2013, the company's board of directors authorized a share repurchase program of up to $4.0 billion of the company’s common stock. Repurchases under this program commenced in September 2013 upon the completion of the company's 2010 repurchase program. As of December 31, 2013, repurchases under the program totaled $895 million, and $3.1 billion remained under this share repurchase authorization. The repurchase program is expected to expire when we have used all authorized funds for repurchase.
	-2	Includes commissions paid.
	Share repurchases take place from time to time, subject to market conditions and management's discretion, in the open market or in privately negotiated transactions. The company retires its common stock upon repurchase and has not made any purchases of common stock other than in connection with these publicly announced repurchase program authorizations.
	In connection with the spin-off of our former shipbuilding business, we obtained a Private Letter Ruling from the Internal Revenue Service (IRS) that generally limited our share repurchases to approximately 88 million shares within two years of the spin-off. The limitation expired on March 31, 2013. During this two year period, we repurchased approximately 67 million shares of our common stock.
	Dividends on Common Stock
	In May 2013, the company increased the quarterly common stock dividend 11 percent to $0.61 per share from the previous amount of $0.55 per share.
	In May 2012, the company increased the quarterly common stock dividend 10 percent to $0.55 per share from the previous amount of $0.50 per share.
	In May 2011, the company increased the quarterly common stock dividend 6 percent to $0.50 per share from the previous amount of $0.47 per share.

Business_Dispositions

Business Dispositions	12 Months Ended
	Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
Business Dispositions	'
	BUSINESS DISPOSITIONS
	There were no material dispositions in 2013 and 2012.
	Huntington Ingalls Industries, Inc. (HII)
	Effective March 31, 2011, the company completed the spin-off to its shareholders of HII. HII was formed to operate the company's former shipbuilding business. The company made a pro rata distribution to its shareholders of one share of HII common stock for every six shares of the company’s common stock held on the record date of March 30, 2011, or 48.8 million shares of HII common stock. HII paid a $1.4 billion cash contribution to the company. There was no gain or loss recognized as a result of the spin-off transaction.
	Prior to the completion of the spin-off, the company and HII entered into a Separation and Distribution Agreement dated March 29, 2011, and several other agreements that govern the post-separation relationship. These agreements generally provide that each party is responsible for its respective assets, liabilities and obligations following the spin-off, including employee benefits, intellectual property, information technology, insurance and tax-related assets and liabilities.
	In connection with the spin-off, the company incurred $28 million of non-deductible transaction costs for the year ended December 31, 2011, which were included in discontinued operations.
	Discontinued Operations
	Earnings for the former shipbuilding business and an adjustment to the gain from a previous divestiture, are reported as discontinued operations, as presented in the following table:
		Year Ended December 31,
	$ in millions	2011
	Sales		$1,646
	Earnings from discontinued operations	59
	Income tax expense	(28		)
	Earnings, net of tax	31
	Gain on divestiture, net of income tax expense of $1	1
	Earnings from discontinued operations, net of tax		$32
	Tax rates on discontinued operations vary from the company’s effective tax rate generally due to the non-deductibility of goodwill for tax purposes and the effects, if any, of capital loss carryforwards.
	There were no assets or liabilities related to these discontinued operations included in the consolidated statements of financial position as of December 31, 2013, 2012 or 2011.

Segment_Information

Segment Information	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Information	'
	SEGMENT INFORMATION
	The company is aligned into four segments: Aerospace Systems, Electronic Systems, Information Systems, and Technical Services.
	The company, from time to time, acquires or disposes of businesses and realigns contracts, programs or business areas among and within its operating segments. Portfolio shaping and internal realignments are designed to more fully leverage existing capabilities and enhance development and delivery of products and services.
	U.S. Government Sales
	Sales to the U.S. Government include sales from contracts for which Northrop Grumman is the prime contractor, as well as those for which the company is a subcontractor and the ultimate customer is the U.S. Government. Each of the company’s segments derives substantial revenue from the U.S. Government. Sales to the U.S. Government amounted to $21.3 billion, $22.3 billion and $23.4 billion, or 86 percent, 88 percent and 89 percent, of total sales for the years ended December 31, 2013, 2012 and 2011, respectively.
	International Sales
	International sales (which include foreign military sales) amounted to $2.5 billion, $2.1 billion and $2.1 billion, or 10 percent, 8 percent and 8 percent, of total sales for the years ended December 31, 2013, 2012 and 2011, respectively.
	Discontinued Operations
	The company’s discontinued operations are excluded from the amounts in the following tables.
	Assets
	Substantially all of the company’s operating assets are located or maintained in the U.S.
	Results of Operations By Segment
	The following table presents sales and operating income by segment:
			Year Ended December 31
	$ in millions		2013				2012			2011
	Sales
	Aerospace Systems			$10,014				$9,977			$9,964
	Electronic Systems		7,149				6,950			7,372
	Information Systems		6,596				7,356			7,921
	Technical Services		2,843				3,019			3,193
	Intersegment eliminations		(1,941		)		(2,084		)	(2,038		)
	Total sales		24,661				25,218			26,412
	Operating income
	Aerospace Systems		1,215				1,218			1,217
	Electronic Systems		1,226				1,187			1,070
	Information Systems		633				761			766
	Technical Services		262				268			260
	Intersegment eliminations		(256		)		(258		)	(258		)
	Total segment operating income		3,080				3,176			3,055
	Reconciliation to operating income:
	Net FAS/CAS pension adjustment		168				132			400
	Unallocated corporate expenses		(119		)		(168		)	(166		)
	Other		(6		)		(10		)	(13		)
	Total operating income			$3,123				$3,130			$3,276
	Net FAS/CAS Pension Adjustment
	The net FAS/CAS pension adjustment is the difference between pension expense determined in accordance with GAAP and pension expense allocated to the operating segments determined in accordance with CAS. The increase in net FAS/CAS pension adjustment for 2013, as compared to 2012, reflects an update for actual demographic experience as of January 1, 2013, which resulted in an increase to the company's 2013 CAS pension expense. The decrease in the 2012 net FAS/CAS pension adjustment, as compared to 2011, is primarily due to increased GAAP pension expense resulting from amortization of prior year actuarial losses and reduced CAS pension expense resulting from a plan amendment in 2011.
	Unallocated Corporate Expenses
	Unallocated corporate expenses include the portion of corporate expenses not considered allowable or allocable under applicable CAS regulations and the Federal Acquisition Regulation, and are therefore not allocated to the segments. Such costs consist of a portion of management and administration, legal, environmental, compensation costs, retiree benefits, and certain unallowable costs such as lobbying activities, among others. The decrease in unallocated corporate expenses for 2013, as compared to 2012, is primarily due to lower year-over-year provisions for disallowed costs and litigation matters and the favorable settlement of overhead claims, partially offset by changes in deferred tax assets due to lower blended state income tax rates.
	Intersegment Sales and Operating Income
	Sales between segments are recorded at values that include hypothetical operating income for the performing segment based on that segment’s estimated operating margin rate for external sales. Such hypothetical operating income is eliminated in consolidation. Intersegment sales and operating income before eliminations were as follows:
			Year Ended December 31
	$ in millions		2013							2012						2011
			Sales			Operating				Sales			Operating			Sales		Operating
						Income							Income					Income
	Intersegment sales and operating income
	Aerospace Systems			$149				$18			$171				$20		$134		$	18
	Electronic Systems		629				125			607				110		649			131
	Information Systems		504				63			682				78		687			68
	Technical Services		659				50			624				50		568			41
	Total			$1,941				$256			$2,084				$258		$2,038			$258
	Other Financial Information
			December 31
	$ in millions		2013				2012
	Assets
	Aerospace Systems			$6,490				$6,657
	Electronic Systems		4,400				4,551
	Information Systems		6,887				6,940
	Technical Services		1,367				1,313
	Segment assets		19,144				19,461
	Corporate assets (1)		7,237				7,082
	Total assets			$26,381				$26,543
	-1	Corporate assets principally consist of cash and cash equivalents and deferred tax assets.
			Capital Expenditures											Depreciation and Amortization
$ in millions		2013				2012			2011				2013		2012			2011
Aerospace Systems			$198				$154			$184				$210		$196			$200
Electronic Systems		76				84			121				134		139			144
Information Systems		27				40			45				81		100			121
Technical Services		3				3			1				4		4			4
Corporate		60				50			141				66		71			75
Total from continuing operations			$364				$331			$492				$495		$510			$544
The depreciation and amortization expense above includes amortization of purchased intangible assets, as well as amortization of deferred and other outsourcing costs.

Accounts_Receivable_Net

Accounts Receivable, Net	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Accounts Receivable, Net	'
	ACCOUNTS RECEIVABLE, NET
	Unbilled amounts represent sales for which billings have not been presented to customers by period-end. These amounts are usually billed and collected within one year. Substantially all accounts receivable at December 31, 2013, are expected to be collected in 2014. The company does not believe it has significant exposure to credit risk, as accounts receivable and the related unbilled amounts are primarily from contracts where the U.S. Government is the primary customer.
	Accounts receivable consisted of the following:
		December 31
	$ in millions	2013			2012
	Due from U.S. Government
	Billed		$596			$783
	Unbilled	5,801			5,284
	Progress and performance-based payments received	(4,385		)	(3,907		)
		2,012			2,160
	Due from Other Customers (inclusive of foreign military sales)
	Billed	296			325
	Unbilled	2,830			1,992
	Progress and performance-based payments received	(2,384		)	(1,559		)
		742			758
	Total accounts receivable	2,754			2,918
	Allowance for doubtful accounts	(69		)	(60		)
	Total accounts receivable, net		$2,685			$2,858

Inventoried_Costs_Net

Inventoried Costs, Net	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventoried Costs, Net	'
	INVENTORIED COSTS, NET
	Inventoried costs consisted of the following:
		December 31
	$ in millions	2013			2012
	Production costs of contracts in process		$1,342			$1,593
	General and administrative expenses	259			262
		1,601			1,855
	Progress and performance-based payments received	(1,005		)	(1,167		)
		596			688
	Product inventory	102			110
	Total inventoried costs, net		$698			$798

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	INCOME TAXES
	Federal and foreign income tax expense consisted of the following:
		Year Ended December 31
	$ in millions	2013			2012			2011
	Income Taxes on Continuing Operations
	Currently payable
	Federal income taxes		$803			$912			$592
	Foreign income taxes	28			15			18
	Total federal and foreign income taxes currently payable	831			927			610
	Deferred federal and foreign income taxes	80			60			387
	Total federal and foreign income taxes		$911			$987			$997
	Earnings from foreign continuing operations before income taxes are not material for all periods presented.
	Income tax expense differs from the amount computed by multiplying the statutory federal income tax rate times the earnings from continuing operations before income taxes due to the following:
		Year Ended December 31
	$ in millions	2013			2012			2011
	Income tax expense on continuing operations at statutory rate		$1,002			$1,038			$1,079
	Manufacturing deduction	(63		)	(42		)	(32		)
	Research tax credit	(37		)	—			(17		)
	Other, net	9			(9		)	(33		)
	Total federal and foreign income taxes		$911			$987			$997
	The company’s effective tax rate on earnings from continuing operations for the year ended December 31, 2013, was 31.8 percent, as compared with 33.3 percent and 32.3 percent for the years ended December 31, 2012 and 2011, respectively. The American Taxpayer Relief Act, enacted in January 2013, reinstated research tax credits for tax years 2012 and 2013, which the company recognized in 2013.
	Uncertain Tax Positions
	The company files income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. The IRS is currently conducting an examination of the company's tax returns for the years 2007 through 2011. With respect to the tax years 2007 through 2009, the company has reached a tentative resolution with the IRS subject to final review by the U.S. Congressional Joint Committee on Taxation, which has returned one issue to the IRS examination team for further development. It is reasonably possible that during the next twelve months, we will record a reduction in our unrecognized tax benefits up to $80 million and a reduction of our income tax expense up to $50 million. Open tax years related to state and foreign jurisdictions remain subject to examination, but are not considered material.
	Although the company believes that it has adequately provided for all of its tax positions, amounts asserted by taxing authorities in future years could be greater than the company’s accrued positions. Accordingly, additional provisions on income tax related matters could be recorded in the future due to revised estimates, settlement or other resolution of the underlying tax matters.
	The change in unrecognized tax benefits during 2013, 2012 and 2011, excluding interest, is as follows:
		December 31
	$ in millions	2013			2012			2011
	Unrecognized tax benefits at beginning of the year		$156			$118			$126
	Additions based on tax positions related to the current year	56			12			11
	Additions for tax positions of prior years	44			28			31
	Other, net	(15		)	(2		)	(50		)
	Net change in unrecognized tax benefits	85			38			(8		)
	Unrecognized tax benefits at end of the year		$241			$156			$118
	These liabilities, along with $31 million of accrued interest and penalties, are included in other non-current liabilities in the consolidated statements of financial position. If the income tax benefits from these tax positions are ultimately realized, $190 million of federal and foreign benefits would reduce the company’s effective tax rate.
	Net interest expense within the company's federal, foreign and state income tax provisions were not material for the years ended December 31, 2013, 2012 and 2011.
	Deferred Income Taxes
	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and tax purposes. Such amounts are classified in the consolidated statements of financial position as current or non-current assets or liabilities, based upon the classification of the related assets and liabilities.
	The tax effects of significant temporary differences and carryforwards that gave rise to year-end deferred federal, state and foreign tax balances, as presented in the consolidated statements of financial position, are as follows:
		December 31
	$ in millions	2013			2012
	Deferred Tax Assets
	Retirement benefits		$1,308			$2,710
	Provisions for accrued liabilities	646			675
	Stock-based compensation	109			146
	Other	144			151
	Gross deferred tax assets	2,207			3,682
	Less valuation allowance	(55		)	(52		)
	Net deferred tax assets	2,152			3,630
	Deferred Tax Liabilities
	Goodwill	806			804
	Property, plant, and equipment, net	348			376
	Contract accounting differences	134			199
	Other	50			135
	Gross deferred tax liabilities	1,338			1,514
	Total net deferred tax assets		$814			$2,116
	Realization of deferred tax assets is primarily dependent on generating sufficient taxable income in future periods. The company believes it is more-likely-than-not all deferred tax assets will be realized, net of any valuation allowances currently established.
	At December 31, 2013, the company has available unused net operating losses of $189 million that may be applied against future taxable income, primarily in the United Kingdom that may be used indefinitely. A valuation allowance of $55 million has been recorded against certain deferred tax assets due to the uncertainty of the realization of these net operating losses and other deferred tax assets, principally in foreign jurisdictions.
	Undistributed Foreign Earnings
	As of December 31, 2013, the company has accumulated undistributed earnings generated by its foreign subsidiaries. No deferred tax liability has been recorded on these earnings since the company intends to permanently reinvest these earnings. Should these earnings be distributed in the form of dividends or otherwise, the distributions would be subject to U.S. federal income tax at the statutory rate of 35 percent, less foreign tax credits available to offset such distributions, if any. In addition, such distributions may be subject to withholding taxes in the various tax jurisdictions.

Goodwill_and_Other_Purchased_I

Goodwill and Other Purchased Intangible Assets	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Other Purchased Intangible Assets	'
	GOODWILL AND OTHER PURCHASED INTANGIBLE ASSETS
	Goodwill
	Goodwill and other purchased intangible assets are included in the identifiable assets of the segment to which the operations of the acquired entity have been assigned. Impairment tests are performed at least annually and more often as circumstances require. Any goodwill impairment, as well as the amortization of other purchased intangible assets, is charged against the respective segment’s operating income. Historically, our annual goodwill impairment test has been performed as of November 30. As discussed in Note 1, during the fourth quarter of 2013, the company changed the date of its annual goodwill impairment test from November 30 to December 31. As a result of this change, during 2013, we performed an annual goodwill impairment test as of November 30 and as of December 31. In performing the goodwill impairment tests, the company uses a discounted cash flow approach corroborated by comparative market multiples, where appropriate, to determine the fair value of its businesses. Accumulated goodwill impairment losses at December 31, 2013 and 2012, totaled $570 million at the Aerospace Systems segment.
	The changes in the carrying amounts of goodwill for the years ended December 31, 2013 and 2012, were as follows:
	$ in millions	Aerospace			Electronic			Information		Technical		Total
		Systems			Systems			Systems		Services
	Balance as of December 31, 2011		$3,801			$2,400			$5,248		$925		$12,374
	Businesses acquired, sold and other	(43		)	10			39		51		57
	Balance as of December 31, 2012		$3,758			$2,410			$5,287		$976		$12,431
	Businesses acquired	—			—			7		—		7
	Balance as of December 31, 2013		$3,758			$2,410			$5,294		$976		$12,438
	Purchased Intangible Assets
	Net contract, program, and other intangible assets were comprised of the following:
		31-Dec
	$ in millions	2013			2012
	Gross contract, program and other intangible assets		$1,812			$1,819
	Less accumulated amortization	(1,708		)	(1,682		)
	Net contract, program and other intangible assets	$104				$137
	Amortization expense for 2013, 2012 and 2011, was $26 million, $36 million and $37 million, respectively. The company’s purchased intangible assets are being amortized on a straight-line basis over an aggregate weighted-average period of 21 years and are included in other non-current assets in the consolidated statements of financial position. As of December 31, 2013, the expected future amortization of purchased intangibles for each of the next five years is as follows:
	$ in millions
	Year Ending December 31
	2014		$20
	2015	18
	2016	12
	2017	10
	2018	9

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	FAIR VALUE OF FINANCIAL INSTRUMENTS
	The following table presents the fair value information for those assets and liabilities measured at fair value on a recurring basis:
		December 31, 2013							December 31, 2012
	$ in millions	Carrying				Fair			Carrying				Fair
		Value				Value			Value				Value
	Financial Assets (Liabilities)
	Marketable securities
	Trading			$308			$308				$259			$259
	Available-for-sale		2			2				3			3
	Derivatives		(2		)	(2		)		(1		)	(1		)
	Long-term debt, including current portion		(5,930		)	(6,227		)		(3,935		)	(4,834		)
	There were no transfers of financial instruments between the three levels of fair value hierarchy during the years ended December 31, 2013 and 2012.
	The carrying value of cash and cash equivalents approximate fair value.
	Investments in Marketable Securities
	The company holds a portfolio of marketable securities to partially fund long-term deferred compensation programs, consisting of equity securities that are classified as either trading or available-for-sale, which can be liquidated without restriction. These assets are recorded at fair value and substantially all of these instruments are valued using Level 1 inputs, with an immaterial amount valued using Level 2 inputs. As of December 31, 2013 and 2012, marketable securities of $310 million and $261 million, respectively, were included in other non-current assets in the consolidated statements of financial position.
	Derivative Financial Instruments and Hedging Activities
	The company's derivative portfolio consists primarily of foreign currency forward contracts, which are used to manage foreign currency exchange risk related to receipts from customers and payments to suppliers denominated in foreign currencies. The notional values for the company's derivative portfolio at December 31, 2013 and 2012, were $161 million and $164 million, respectively. The portion of the notional values designated as cash flow hedges at December 31, 2013 and 2012, were $77 million and $110 million, respectively.
	Derivative financial instruments are recognized as assets or liabilities in the financial statements and measured at fair value. Substantially all of these instruments are valued using Level 2 inputs. Where model-derived valuations are appropriate, the company utilizes the income approach to determine the fair value and uses the applicable London Interbank Offered Rate (LIBOR) swap rates.
	Unrealized gains or losses on the effective portion of cash flow hedges are reclassified from other comprehensive income to operating income upon the settlement of the underlying transactions. The derivative fair values and related unrealized gains/losses at December 31, 2013 and 2012, were not material. Hedge contracts not designated for hedge accounting and the ineffective portion of cash flow hedges are recorded in other income.
	Long-Term Debt
	The fair value of long-term debt is calculated using Level 2 inputs, based on interest rates available for debt with terms and maturities similar to the company’s existing debt arrangements.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	LONG-TERM DEBT
	Lines of Credit
	The company has available uncommitted short term credit lines in the form of money market facilities with several banks. The amount and conditions for borrowing under these credit lines depend on the availability and terms prevailing in the marketplace. No fees or compensating balances are required for these credit facilities.
	Credit Facility
	In August 2013, the company entered into a new five-year senior unsecured credit facility in an aggregate principal amount of $1.775 billion (the Credit Agreement). The Credit Agreement replaced the company’s prior five-year revolving credit facility in an aggregate principal amount of $1.5 billion entered into on September 8, 2011, and its 364-day revolving credit facility in an aggregate principal amount of $500 million entered into on September 4, 2012.
	The Credit Agreement contains customary terms and conditions, including covenants restricting the company's ability to sell all or substantially all of its assets, merge or consolidate with another entity or undertake other fundamental changes and incur liens. The company also cannot permit the ratio of its debt to capitalization (as set forth in the Credit Agreement) to exceed 65 percent. The company is in compliance with all covenants under the Credit Agreement. At December 31, 2013, there was no balance outstanding under this facility.
	Issuance and Redemption
	In May 2013, the company issued $2.85 billion of unsecured senior notes consisting of $850 million due June 1, 2018, with a fixed interest rate of 1.75 percent; $1.05 billion due August 1, 2023, with a fixed interest rate of 3.25 percent; and $950 million due June 1, 2043, with a fixed interest rate of 4.75 percent (collectively, the Notes). Interest on the Notes is payable semi-annually in arrears. The Notes are subject to redemption at the company's discretion at any time, or from time to time, prior to maturity in whole or in part at the greater of the principal amount of the Notes or a "make-whole" amount, plus accrued and unpaid interest. The company used a portion of the net proceeds to fund the redemption of $350 million of the company's 3.70 percent unsecured senior notes due August 1, 2014, and $500 million of 1.85 percent unsecured senior notes due November 15, 2015. The company recorded a pre-tax charge of $30 million principally related to the premiums paid on the redemptions, which was recorded in other, net in the consolidated statements of earnings and comprehensive income.
	Long-term debt consists of the following:
	$ in millions			December 31
				2013		2012
	Fixed-rate notes and debentures, maturing in		Interest rate
	2014		3.70%		$—		$350
	2015		1.85%	—		500
	2016		7.75%	107		107
	2018		1.75% - 6.75%	1,050		200
	2019		5.05%	500		500
	2021		3.50%	700		700
	2023		3.25%	1,050		—
	2026		7.75% - 7.88%	527		527
	2031		7.75%	466		466
	2040		5.05%	300		300
	2043		4.75%	950		—
	Capital leases		Various	35		32
	Other		Various	245		253
	Total long-term debt			5,930		3,935
	Less: current portion			2		5
	Long-term debt, net of current portion				$5,928		$3,930
	Indentures underlying long-term debt issued by the company or its subsidiaries contain various restrictions with respect to the issuer, including one or more restrictions relating to limitations on liens, sale-leaseback arrangements, and funded debt of subsidiaries. The majority of these fixed rate notes and debentures are subject to redemption at the company’s discretion at any time prior to maturity in whole or in part at the principal amount plus any make-whole premium and accrued and unpaid interest. Interest on these fixed rate notes and debentures are payable semi-annually in arrears.
	Maturities of long-term debt as of December 31, 2013, are as follows:
	$ in millions
	Year Ending December 31
	2014		$2
	2015	3
	2016	110
	2017	3
	2018	1,053
	Thereafter	4,757
	Total principal payments	5,928
	Unamortized premium on long-term debt, net of discount	2
	Total long-term debt		$5,930
	The premium on long-term debt primarily represents non-cash fair market value adjustments resulting from acquisitions, which are amortized over the life of the related debt.

Investigations_Claims_and_Liti

Investigations, Claims and Litigation	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Investigations, Claims and Litigation	'
	INVESTIGATIONS, CLAIMS AND LITIGATION
	Litigation
	The company is one of several defendants in litigation brought by the Orange County Water District in Orange County Superior Court in California on December 17, 2004, for alleged contribution to volatile organic chemical contamination of the County's shallow groundwater. The lawsuit includes counts against the defendants for violation of the Orange County Water District Act, the California Super Fund Act, negligence, nuisance, trespass and declaratory relief. Among other things, the lawsuit seeks unspecified damages for the cost of remediation, payment of attorney fees and costs, and punitive damages. Trial on the statutory claims (those based on the Orange County Water District Act, the California Super Fund Act and declaratory relief) concluded on September 25, 2012. On December 11, 2012, the court issued a tentative decision on these claims in favor of the company and the other remaining defendants. On May 10, 2013, the court issued a supplemental tentative decision, which included additional findings supporting its earlier tentative decision in favor of the company and the other remaining defendants on the statutory causes of action tried in 2012. On October 29, 2013, the court incorporated its two tentative decisions into a final decision, which it issued in favor of the defendants on the statutory claims. The court has scheduled an April 22, 2014, hearing on defendants' dispositive motions on the remaining tort causes of action.
	On May 4, 2012, the company commenced an action, Northrop Grumman Systems Corp. v. United States, in the U.S. Court of Federal Claims. This lawsuit relates to an approximately $875 million firm fixed price contract awarded to the company in 2007 by the U.S. Postal Service (USPS) for the construction and delivery of flats sequencing systems (FSS) as part of the postal automation program. The FSS have been delivered. The company's lawsuit is based on various theories of liability. The complaint seeks approximately $63 million for unpaid portions of the contract price, and approximately $115 million based on the company's assertions that, through various acts and omissions over the life of the contract, the USPS adversely affected the cost and schedule of performance and materially altered the company's obligations under the contract. The United States responded to the company's complaint with an answer, denying most of the company's claims, and counterclaims, seeking approximately $410 million, less certain amounts outstanding under the contract. The principal counterclaim alleges that the company delayed its performance and caused damages to the USPS because USPS did not realize certain costs savings as early as it had expected. On April 2, 2013, the U.S. Department of Justice informed the company of a False Claims Act complaint relating to the FSS contract that was filed under seal by a relator in June 2011, in the U.S. District Court for the Eastern District of Virginia. On June 3, 2013, the United States filed a Notice informing the Court that the United States had decided not to intervene in this case. On August 26, 2013, the relator filed a corrected First Amended Complaint. The relator alleged that the company violated the False Claims Act in a number of ways with respect to the FSS contract, alleged damage to the USPS in an amount of at least approximately $179 million annually, and sought an unspecified partial refund of the contract purchase price, penalties, attorney's fees and other costs of suit. Damages under the False Claims Act may be trebled upon a finding of liability. The relator also alleged he was improperly discharged in retaliation. On November 22, 2013, the company filed a motion to dismiss the First Amended Complaint. By Order dated December 11, 2013, based on the relator's stipulation, the court dismissed the relator's retaliation claim. By Order dated December 13, 2013, the court dismissed the remaining allegations without prejudice and granted the relator leave to file an Amended Complaint. On January 3, 2014, the relator filed a Second Amended Complaint that, with the exception of the retaliation claim which is now the subject of an arbitration demand, includes the same allegations as the First Amended Complaint. Although the ultimate outcome of this matter, including any possible loss, cannot be predicted or estimated at this time, the company intends vigorously to pursue and defend this matter.
	On August 8, 2013, the company received a court-appointed expert's report in litigation pending in the Second Federal Court of the Federal District in Brazil brought by the Brazilian Post and Telegraph Corporation (ECT) a Brazilian state-owned entity, against Solystic SAS (Solystic), a French subsidiary of the company, and two of its consortium partners. In this suit, commenced on December 17, 2004, and relatively inactive for some period of time, ECT alleges the consortium breached its contract with ECT and seeks damages of approximately R$111 million (the equivalent of approximately $47 million as of December 31, 2013), plus interest, inflation adjustments, and attorneys’ fees, as authorized by Brazilian law, which amounts could be significant over time. The original suit sought R$89 million (the equivalent of approximately $38 million as of December 31, 2013) in damages. In October 2013, ECT asserted an additional damage claim of R$22 million (the equivalent of approximately $9 million as of December 31, 2013). In its counterclaim, Solystic alleges ECT breached the contract by wrongfully refusing to accept the equipment Solystic had designed and built and seeks damages of approximately €31 million (the equivalent of approximately $43 million as of December 31, 2013), plus interest, inflation adjustments, and attorneys’ fees, as authorized by Brazilian law. The Brazilian court retained an expert to consider certain issues pending before it. On August 8, 2013, the company received a report from the expert, which contains some recommended findings relating to liability and the damages calculations put forth by ECT. Some of the expert's findings were favorable to the company and others were favorable to ECT. On November 14, 2013, the court requested the expert to prepare a supplemental report addressing responses filed by the parties in October 2013. At some point after the supplemental report is filed, the court is expected to issue a decision that could accept or reject the expert’s recommended findings.
	The company is a party to various investigations, lawsuits, claims and other legal proceedings, including government investigations and claims, that arise in the ordinary course of our business. The nature of legal proceedings is such that we cannot assure the outcome of any particular matter. However, based on information available to the company to date, and other than with respect to the FSS matters discussed separately above, the company does not believe that the outcome of any matter pending against the company is likely to have a material adverse effect on the company's consolidated financial position as of December 31, 2013, its annual results of operations and/or cash flows.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 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 performance by the Business Arrangements and, in such cases, the company generally obtains cross-indemnification from the other members of the Business Arrangements.
	At December 31, 2013, the company is not aware of any 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 it has adequately reserved for disputed amounts that are probable and estimable, and the outcome of any such matters would not have a material adverse effect on its consolidated financial position as of December 31, 2013, or its annual results of operations and/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 December 31, 2013, management estimates that the range of reasonably possible future costs for environmental remediation is between $319 million and $806 million, before considering the amount recoverable through overhead charges on U.S. Government contracts. At December 31, 2013, the amount accrued for probable environmental remediation costs was $338 million, of which $100 million is accrued in other current liabilities and $238 million is accrued in other non-current liabilities. A portion of the environmental remediation costs is expected to be recoverable through overhead charges on U.S. government contracts and, accordingly, such amounts are deferred in inventoried costs and other non-current assets. As of December 31, 2013, $51 million is deferred in inventoried costs and $128 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 as changes in facts and circumstances occur, will materially affect the estimated liability accrued, management does not anticipate that future remediation expenditures will have a material adverse effect on the company's consolidated financial position as of December 31, 2013, or its annual results of operations and/or cash flows.
	Financial Arrangements
	In the ordinary course of business, the company uses standby 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 December 31, 2013, there were $345 million of stand-by letters of credit and guarantees, and $157 million of surety bonds outstanding.
	Indemnifications
	The company has retained certain 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 December 31, 2013, or its annual results of operations and/or cash flows.
	Operating Leases
	Rental expense for operating leases, excluding discontinued operations, was $298 million in 2013, $347 million in 2012, and $420 million in 2011. These amounts are net of immaterial amounts of sublease rental income. Minimum rental commitments under long-term non-cancelable operating leases as of December 31, 2013, are payable as follows:
	$ in millions
	Year Ending December 31
	2014		$277
	2015	232
	2016	176
	2017	107
	2018	61
	Thereafter	90
	Total Minimum Lease Payments		$943

Retirement_Benefits

Retirement Benefits	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Retirement Benefits	'
	RETIREMENT BENEFITS
	Plan Descriptions
	Defined Benefit Pension Plans – The company sponsors several defined benefit pension plans in the U.S. covering the majority of its employees. Pension benefits for most employees are based on the employee’s years of service, age and compensation. It is the policy of the company to fund at least the minimum amount required for all qualified plans, using actuarial cost methods and assumptions acceptable under U.S. Government regulations, by making payments into benefit trusts separate from the company.
	Defined Contribution Plans – The company also sponsors 401(k) defined contribution plans in which most employees are eligible to participate, including certain employees covered under collective bargaining agreements. Company contributions for most plans are based on a cash matching of employee contributions up to 4 percent of compensation. In addition to the 401(k) defined contribution benefit, certain employees hired after June 30, 2008, are eligible to participate in a defined contribution program in lieu of a defined benefit pension plan. The company’s contributions to these defined contribution plans for the years ended December 31, 2013, 2012 and 2011, were $285 million, $293 million and $297 million, respectively.
	Non-U.S. Benefit Plans – The company sponsors several benefit plans for non-U.S. employees. These plans are designed to provide benefits appropriate to local practice and in accordance with local regulations. Some of these plans are funded using benefit trusts that are separate from the company.
	Medical and Life Benefits – The company provides a portion of the costs for certain health care and life insurance benefits for a substantial number of its active and retired employees. Certain covered employees achieve eligibility to participate in these contributory plans upon retirement from active service if they meet specified age and years of service requirements. Qualifying dependents are also eligible for medical coverage. Approximately 62 percent of the company’s current pension retirees participate in the medical plans. The company reserves the right to amend or terminate the plans at any time. The company has capped the amount of its contributions to substantially all of its remaining post retirement medical and life benefit plans.
	In addition to a company and employee cost-sharing feature, the plans also have provisions for deductibles, co-payments, coinsurance percentages, out-of-pocket limits, conformance to a schedule of reasonable fees, the use of managed care providers, and coordination of benefits with other plans. The plans also provide for a Medicare carve-out. Subsequent to January 1, 2005 (or earlier at some segments), newly hired employees are not eligible for post retirement medical and life benefits.
	Summary Plan Results
	The cost to the company of its retirement benefit plans in each of the three years ended December 31 is shown in the following table:
			Year Ended December 31
			Pension Benefits												Medical and
															Life Benefits
	$ in millions		2013				2012				2011				2013			2012			2011
	Components of net periodic benefit cost
	Service cost			$516				$522				$520				$36			$34			$32
	Interest cost		1,117				1,184				1,223				96			109			114
	Expected return on plan assets		(1,809		)		(1,708		)		(1,690		)		(75		)	(68		)	(62		)
	Amortization of:
	Prior service (credit) cost		(58		)		(58		)		23				(51		)	(51		)	(51		)
	Net loss from previous years		608				427				162				30			21			17
	Other		—				7				—				—			—			(6		)
	Net periodic benefit cost			$374				$374				$238				$36			$45			$44
	The table below summarizes the components of changes in unamortized benefit plan costs for the years ended December 31, 2013, 2012 and 2011:
		Pension					Medical and
	$ in millions	Benefits					Life Benefits				Total
	Changes in unamortized benefit plan costs
	Change in net actuarial loss			$2,687				$138				$2,825
	Change in prior service cost		(608		)		6				(602		)
	Amortization of:
	Prior service (cost) credit		(23		)		51				28
	Net loss from previous years		(162		)		(17		)		(179		)
	Tax benefit related to above items		(752		)		(71		)		(823		)
	Change in unamortized benefit plan costs – 2011			$1,142				$107				$1,249
	Change in net actuarial loss			$2,353				$151				$2,504
	Change in prior service cost		(2		)		—				(2		)
	Amortization of:
	Prior service credit		58				51				109
	Net loss from previous years		(427		)		(21		)		(448		)
	Tax benefit related to above items		(788		)		(72		)		(860		)
	Change in unamortized benefit plan costs – 2012			$1,194				$109				$1,303
	Change in net actuarial loss			($2,158	)			($280	)			($2,438	)
	Amortization of:
	Prior service credit		58				51				109
	Net loss from previous years		(608		)		(30		)		(638		)
	Tax expense related to above items		1,075				102				1,177
	Change in unamortized benefit plan costs – 2013			($1,633	)			($157	)			($1,790	)
	Unamortized benefit plan costs consist primarily of accumulated actuarial losses totaling $3.3 billion and $5.1 billion, both after tax, as of December 31, 2013 and 2012, respectively. The change in net actuarial loss from pension benefits in 2013 was primarily due to the increase in the discount rate assumption to 4.99 percent at December 31, 2013, from 4.12 percent at December 31, 2012.
	In December 2011, the company adopted certain changes in its defined benefit pension plans designed to enable the company to remain competitive within its marketplace and provide the affordability its customers require. These changes represent modifications to the defined benefits available to employees hired prior to July 1, 2008, who retire beginning after December 31, 2012. As a result of these changes, the company recognized a reduction of approximately $640 million in its projected benefit obligations for the affected employee groups as of December 31, 2011. Due to these changes, certain nonqualified benefit plans experienced curtailments, however the net impact of these curtailment events was not material.
			Pension							Medical and Life
			Benefits							Benefits
	$ in millions		2013			2012				2013			2012
	Amounts recorded in accumulated other comprehensive loss
	Net actuarial loss		($5,291	)			($8,057	)		($151	)		($461	)
	Prior service credit		423			481				47			98
	Income tax benefits related to above items		1,928			3,003				44			146
	Unamortized benefit plan costs		($2,940	)			($4,573	)		($ 60	)		($217	)
	The following tables set forth the funded status and amounts recognized in the consolidated statements of financial position for the company’s defined benefit pension and retiree health care and life insurance benefit plans. Pension benefits data includes the qualified plans, foreign plans, as well as 11 domestic unfunded non-qualified plans for benefits provided to directors, officers and certain employees. The company uses a December 31 measurement date for all of its plans.
			Pension Benefits						Medical and
									Life Benefits
	$ in millions		2013			2012			2013			2012
	Change in projected benefit obligation
	Projected benefit obligation at beginning of year		$27,746			$24,129			$2,448			$2,235
	Service cost		516			522			36			34
Interest cost		1,117			1,184			96			109
Participant contributions		12			12			77			81
Plan amendments		—			(1	)		—			—
Actuarial (gain) loss		(2,063	)		3,114			(219	)		202
Benefits paid		(1,365	)		(1,220	)		(227	)		(227	)
Other		9			6			13			14
Projected benefit obligation at end of year		$25,972			$27,746			$2,224			$2,448
		Pension Benefits								Medical and
										Life Benefits
$ in millions		2013				2012				2013				2012
Change in plan assets
Fair value of plan assets at beginning of year		$22,962				$21,340				$1,062					$946
Gain on plan assets		1,907				2,463				137				119
Employer contributions		579				366				114				129
Participant contributions		12				12				77				81
Benefits paid		(1,365		)		(1,220		)		(227		)		(227		)
Other		3				1				12				14
Fair value of plan assets at end of year		24,098				22,962				1,175				1,062
Funded status		($ 1,874		)			($4,784	)		($1,049		)		($1,386		)
Amounts recognized in the Consolidated Statements of Financial Position
Non-current assets			$117				$7				$72				$49
Current liability		(122		)		(111		)		(36		)		(30		)
Non-current liability		(1,869		)		(4,680		)		(1,085		)		(1,405		)
The following table shows those amounts expected to be recognized in net periodic benefit cost in 2014:
$ in millions	Pension Benefits				Medical and
					Life Benefits
Amounts expected to be recognized in 2014 net periodic benefit cost
Net actuarial loss		$327				$9
Prior service credit		(59	)			(30	)
The accumulated benefit obligation for all defined benefit pension plans was $25.7 billion and $27.2 billion at December 31, 2013 and 2012, respectively.
Amounts for pension plans with accumulated benefit obligations in excess of fair value of plan assets are as follows:
		December 31
$ in millions		2013				2012
Projected benefit obligation			$24,129				$27,645
Accumulated benefit obligation		23,830				27,146
Fair value of plan assets		22,138				22,853
Plan Assumptions
On a weighted-average basis, the following assumptions were used to determine the benefit obligations and the net periodic benefit cost:
		Pension Benefits						Medical and
								Life Benefits
		2013			2012			2013			2012
Assumptions used to determine benefit obligation at December 31
Discount rate		4.99	%		4.12	%		4.9	%		4.02	%
Initial cash balance crediting rate assumed for the next year		3.9	%		3	%
Rate to which the cash balance crediting rate is assumed to increase (the ultimate rate)		4.7	%		4.25	%
Year that the cash balance crediting rate reaches the ultimate rate		2019			2018
Rate of compensation increase		3	%		2.75	%
Initial health care cost trend rate assumed for the next year								6.5	%		7	%
Rate to which the health care cost trend rate is assumed to decline (the ultimate trend rate)								5	%		5	%
Year that the health care cost trend rate reaches the ultimate trend rate								2017			2017
Assumptions used to determine benefit cost for the year ended December 31
Discount rate		4.12	%		5.03	%		4.02	%		5.02	%
Initial cash balance crediting rate assumed for the next year		3	%		3.25	%
Rate to which the cash balance crediting rate is assumed to increase (the ultimate rate)		4.25	%		4.5	%
Year that the cash balance crediting rate reaches the ultimate rate		2018			2017
Expected long-term return on plan assets		8	%		8.25	%		7.33	%		7.44	%
Rate of compensation increase		2.75	%		2.75	%
Initial health care cost trend rate assumed for the next year								7	%		7.5	%
Rate to which the health care cost trend rate is assumed to decline (the ultimate trend rate)								5	%		5	%
Year that the health care cost trend rate reaches the ultimate trend rate								2017			2017
The discount rate is generally based on the yield of high-quality corporate fixed-income investments. At the end of each year, the discount rate is primarily determined using a portfolio of high-quality bonds matching the notional cash inflows with the expected benefit payments for each significant benefit plan.
Through consultation with investment advisors, expected long-term returns for each of the plans’ strategic asset classes were developed. Several factors were considered, including current market data such as yields/price-earnings ratios, historical market returns over long periods and periodic surveys of investment managers’ expectations. Using policy target allocation percentages and the asset class expected returns, a weighted-average expected return was calculated.
The assumptions used for pension benefits are consistent with those used for retiree medical and life insurance benefits. The long-term rate of return on plan assets used for medical and life benefits is reduced to allow for the impact of tax on expected returns as the earnings of certain Voluntary Employee Beneficiary Association (VEBA) trusts are taxable, unlike the pension trust.
A one-percentage-point change in the initial through the ultimate health care cost trend rates would have had the following estimated effect on 2013 other post-retirement benefit results:
$ in millions	1-Percentage-					1-Percentage-
	Point Decrease					Point Increase
Increase (decrease) from change in health care cost trend rates to
Total service and interest cost		$	(5	)			$	4
Other post-retirement benefit liability		(81		)			67
Plan Assets and Investment Policy
Plan assets are invested in various asset classes that are expected to produce a sufficient level of diversification and investment return over the long term. The investment goal is to exceed the assumed rate of return over the long term within reasonable and prudent levels of risk. Liability studies are conducted on a regular basis to provide guidance in setting investment goals with an objective to balance risk. Risk targets are established and monitored against acceptable ranges.
Our investment policies and procedures are designed to ensure the plans’ investments are in compliance with ERISA (Employee Retirement Income Security Act). Guidelines are established defining permitted investments within each asset class. Derivatives are used for transitioning assets, asset class rebalancing, managing currency risk and for management of fixed income and alternative investments.
For the majority of the plans’ assets, the investment policies require that the asset allocation be maintained within the following ranges as of December 31, 2013:
		Asset Allocation Ranges
Domestic equities		10% - 30%
International equities		5% - 25%
Fixed income securities		30% - 50%
Alternative investments		15% - 30%
The table below provides the fair values of the company’s pension and VEBA trust plan assets at December 31, 2013, and 2012, by asset category. The table also identifies the level of inputs used to determine the fair value of assets in each category (see Note 1 for definition of levels). The significant amount of Level 2 investments in the table results from including in this category investments in pooled funds that contain investments with values based on quoted market prices, but for which the funds are not valued on a quoted market basis, and fixed income securities valued using model-based pricing services.
		Level 1								Level 2							Level 3						Total
$ in millions		2013				2012				2013				2012			2013			2012			2013		2012
Asset category
Cash and cash equivalents(1)			$32				$92				$1,467				$1,748									$1,499		$1,840
Domestic equities		4,163				3,657				287				318			2				$2		4,452		3,977
International equities		2,473				1,700				1,741				2,319									4,214		4,019
Fixed income securities
U.S. Treasuries										1,602				1,780									1,602		1,780
U.S. Government Agency										974				968									974		968
Non-U.S. Government										422				401									422		401
Corporate debt										4,744				4,123									4,744		4,123
Asset backed										545				528			4			4			549		532
High yield debt										922				1,139			1			28			923		1,167
Bank loans										185				223									185		223
Alternative Investments
Hedge funds																	821			758			821		758
Private equities																	2,075			1,980			2,075		1,980
Real estate																	2,767			2,256			2,767		2,256
Other		26				(5		)		20				5									46		—
Fair value of plan assets at the end of the year			$6,694				$5,444				$12,909				$13,552			$5,670			$5,028			$25,273		$24,024
-1	Cash and cash equivalents are predominantly held in money market funds.
The changes in the fair value of the pension and VEBA plan trust assets measured using Level 3 significant unobservable inputs during 2013 and 2012, are as follows:
$ in millions		Hedge funds and High-yield debt				Private equities				Real Estate				Other			Total
Balance as of December 31, 2011			$1,446				$2,098				$1,788				$6			$5,338
Actual return on plan assets:
Unrealized gains (losses), net		23				(122		)		68				5			(26		)
Realized gains (losses), net		47				—				—				(5		)	42
Purchases		—				259				846				—			1,105
Sales		(730		)		(255		)		(446		)		—			(1,431		)
Balance as of December 31, 2012			$786				$1,980				$2,256				$6			$5,028
Actual return on plan assets:
Unrealized gains (losses), net		(16		)		112				262				—			358
Realized gains (losses), net		43				—				—				—			43
Purchases		200				666				763				—			1,629
Sales		(191		)		(683		)		(514		)		—			(1,388		)
Balance as of December 31, 2013			$822				$2,075				$2,767				$6			$5,670
Generally, investments are valued based on information in financial publications of general circulation, statistical and valuation services, records of security exchanges, appraisal by qualified persons, transactions and bona fide offers. Domestic and international equities consist primarily of common stocks and institutional common trust funds. Investments in common and preferred shares are valued at the last reported sales price of the stock on the last business day of the reporting period. Units in common trust funds and hedge funds are valued based on the redemption price of units owned by the trusts at year-end. Fair value for real estate and private equity partnerships is primarily based on valuation methodologies that include third party appraisals, comparable transactions, discounted cash flow valuation models and public market data.
Non-government fixed income securities are invested across various industry sectors and credit quality ratings. Generally, investment guidelines are written to limit securities, for example, to no more than 5 percent of each trust account, and to exclude the purchase of securities issued by the company. The number of real estate and private equity partnerships is 163 and the unfunded commitments are $899 million and $810 million as of December 31, 2013 and 2012, respectively. For alternative investments that cannot be redeemed, such as limited partnerships, the typical investment term is ten years. For alternative investments that permit redemptions, such redemptions are generally made quarterly and require a 90-day notice. The company is generally unable to determine the final redemption date and amount until the request is processed by the investment fund and therefore categorizes such alternative investments as Level 3 assets.
For the years ended December 31, 2013 and 2012, the defined benefit pension and VEBA trusts did not hold any Northrop Grumman common stock.
Benefit Payments
The following table reflects estimated future benefit payments for the next ten years, based upon the same assumptions used to measure the benefit obligation, and includes expected future employee service, as of December 31, 2013:
$ in millions		Pension Plans				Medical and
						Life Plans
Year Ending December 31
2014			$1,341				$148
2015		1,394				154
2016		1,446				160
2017		1,500				165
2018		1,557				169
2019 through 2023		8,556				860
In 2014, the company expects to contribute the required minimum funding level of approximately $74 million to its pension plans and approximately $90 million to its other post-retirement benefit plans, with no expected additional voluntary pension contributions. During the years ended December 31, 2013 and 2012, the company made voluntary pension contributions of $500 million and $300 million, respectively.

Stock_Compensation_Plans_and_O

Stock Compensation Plans and Other Compensation Arrangements	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock Compensation Plans and Other Compensation Arrangements	'
	STOCK COMPENSATION PLANS AND OTHER COMPENSATION ARRANGEMENTS
	Stock Compensation Plans
	At December 31, 2013, Northrop Grumman had stock-based compensation awards outstanding under the following plans: the 2001 Long-Term Incentive Stock Plan (2001 Plan) and the 2011 Long-Term Incentive Stock Plan (2011 Plan), both applicable to employees, and the 1993 Stock Plan for Non-Employee Directors (1993 SPND) and the 1995 Stock Plan for Non-Employee Directors (1995 SPND) as amended. All of these plans were approved by the company’s shareholders. The company has historically issued new shares to satisfy award grants.
	Employee Plans – In May 2011, the shareholders of the company approved the company’s new 2011 Plan, which replaced the expired 2001 Plan. The 2011 Plan permit grants to key employees of three general types of stock incentive awards: stock options, stock appreciation rights (SARs), and stock awards. Each stock option grant is made with an exercise price either at the closing price of the stock on the date of grant (market options) or at a premium over the closing price of the stock on the date of grant (premium options). Outstanding stock options granted prior to 2008 generally vest in 25 percent increments over four years from the grant date, and grants outstanding expire ten years after the grant date. Stock options granted after January 1, 2008, vest in 33 percent increments over three years from the grant date, and grants outstanding expire seven years after the grant date. No SARs have been granted under either plan. Stock awards in the form of restricted performance stock rights and restricted stock rights are granted to key employees without payment to the company. The 2011 Plan also provides equity-based award grants to non-employee directors.
	Under the 2011 Plan, the company is authorized to issue or transfer shares of common stock pursuant to the types of awards mentioned above. The 2011 Plan authorized 39.1 million new shares plus 6.9 million shares from the 2001 LTISP that were previously authorized and available to be issued at the date the 2001 Plan expired. Under the terms of the 2011 Plan, in the event that outstanding awards under the 2001 Plan expire or terminate without being exercised or paid, as the case may be, such shares (the Forfeited Shares) will become available for award under the 2011 Plan.
	Recipients of restricted performance stock rights earn shares of stock, based on financial metrics determined by the board of directors in accordance with the plan. Depending on whether performance objectives are met, recipients could forfeit up to 100 percent of the original grant or could earn up to 200 percent of the original grant. Restricted performance stock rights and restricted stock rights issued under either plan generally vest after three or four years. Termination of employment can result in forfeiture of some or all of the benefits extended. Shares issued under the 2011 Plan, other than for stock options, stock appreciation rights and the Forfeited Shares, will be counted against the 2011 Plan’s aggregate share limit as 4.5 shares for every one share actually issued in connection with the award; any shares issued for stock options, stock appreciation rights and the Forfeited Shares will be counted against the remaining shares on a one-for-one basis.
	As of December 31, 2013, 28 million shares are available for grant under the 2011 Plan.
	Non-Employee Director Plans – Under the 2011 Plan, each non-employee director must defer a portion of their compensation into a stock unit account (Automatic Stock Units). The Automatic Stock Units accrued under the 2011 Plan and the 1993 SPND are paid out in the form of common stock at the conclusion of the director's board service, or earlier, as specified by the director, if he or she has five or more years of service. In addition, each director may elect to defer payment of all or a portion of his or her remaining cash retainer or committee retainer fees into a stock unit account (Elective Stock Units). The Elective Stock Units are paid at the conclusion of board service or earlier as specified by the director, regardless of years of service. Directors are credited with dividend equivalents in connection with the accumulated stock units until shares of common stock related to such stock units are issued.  Since all directors are eligible to receive awards under the 2011 LTISP, shares from this plan are available for future director awards following the same share counting limits as described for the employee plans. Awards under the 2011 Plan are made pursuant to the Northrop Grumman Corporation Equity Grant Program for Non-Employee Directors under the 2011 Plan, which sets forth the terms and conditions for the awards of stock units as described above.
	The 1995 SPND provided for an annual grant of nonqualified stock options to each non-employee director. Since June 2005, no new grants have been issued under that 1995 SPND. Each grant of stock options under the 1995 SPND was made at the closing market price on the date of the grant and expires ten years from the date of grant. As of December 31, 2013, three non-employee directors held unexercised stock options.
	Compensation Expense
	Stock-based compensation expense and the related tax benefits for the years ended December 31, 2013, 2012 and 2011, were as follows:
		Year Ended December 31
	$ in millions	2013			2012		2011
	Stock-based compensation expense:
	Stock options		$4			$10		$14
	Stock awards	140			173		125
	Total stock-based compensation expense	144			183		139
	Tax benefits from the exercise of stock options	25			26		18
	Tax benefits from the issuance of stock awards	16			19		37
	Total tax benefits recognized for stock-based compensation		$41			$45		$55
	At December 31, 2013, there was $102 million of unrecognized compensation expense related to unvested awards granted under the company’s stock-based compensation plans, predominantly related to stock awards. These amounts are expected to be charged to expense over a weighted-average period of 1.3 years.
	Stock Options
	There were no stock options issued in 2013 or 2012. Stock option activity for the year ended December 31, 2013, was as follows:
			Shares		Weighted-		Weighted-		Aggregate
			under Option		Average		Average		Intrinsic
			(in thousands)		Exercise		Remaining		Value
					Price		Contractual		($ in millions)
							Term
	Outstanding at January 1, 2013		6,271			$58	2.9 years			$66
	Exercised		(4,522	)	59
	Cancelled and forfeited		(29	)	60
	Outstanding at December 31, 2013		1,720		56		2.6 years		101
	Vested and expected to vest in the future at December 31, 2013		1,716		56		2.6 years		101
	Exercisable at December 31, 2013		1,343			$55	2.2 years			$80
	The total intrinsic value of exercised stock options during the years ended December 31, 2013, 2012 and 2011, was $118 million, $97 million and $46 million, respectively. Intrinsic value is measured using the fair market value at the date of exercise (for options exercised) or at December 31, 2013 (for outstanding options), less the applicable exercise price.
	Stock Awards
	Compensation expense for stock awards is measured at the grant date based on the fair value of the award and is recognized over the vesting period (generally three years). The fair value of stock awards and performance stock awards is determined based on the closing market price of the company’s common stock on the grant date. The fair value of market-based stock awards is determined at the grant date using a Monte Carlo simulation model. For purposes of measuring compensation expense for performance awards, the number of shares ultimately expected to vest is estimated at each reporting date based on management’s expectations regarding the relevant performance criteria.
	Stock award activity for the years ended December 31, 2013, 2012 and 2011, is presented in the table below. Vested awards do not include any adjustments to reflect the final performance measure for issued shares.
			Stock		Weighted-		Weighted-
			Awards		Average		Average
			(in thousands)		Grant Date		Remaining
					Fair Value		Contractual
							Term (in years)
	Outstanding at January 1, 2011		4,300			$53	1.5
	Granted		1,748		63
	Vested		(1,824	)	42
	Forfeited		(350	)	50
	Shipbuilding spin-off adjustment		(252	)	47
	Outstanding at December 31, 2011		3,622			$58	1.6
	Granted		1,860		60
	Vested		(1,800	)	55
	Forfeited		(204	)	59
	Outstanding at December 31, 2012		3,478			$61	1.6
	Granted		1,577		64
	Vested		(1,323	)	60
	Forfeited		(312	)	62
	Outstanding at December 31, 2013		3,420			$61	1.5
	The company issued 3.4 million, 2.8 million and 1.4 million shares to employees in settlement of fully vested stock awards, which had total fair values at issuance of $226 million, $172 million and $87 million and grant date fair values of $105 million, $75 million and $101 million during the years ended December 31, 2013, 2012 and 2011, respectively. The differences between the fair values at issuance and the grant date fair values reflect the effects of the performance adjustments and changes in the fair market value of the company’s common stock.
	In 2013, the company granted certain employees 0.5 million restricted stock rights (RSRs) and 1.1 million restricted performance stocks rights (RPSRs) under the company's long-term incentive stock plan, with a grant date aggregate fair value of $101 million. The majority of stock awards were granted on February 20, 2013. The RSRs will typically vest on the third anniversary of the grant date, while the RPSRs will vest and pay out based on the achievement of financial metrics for the three-year period ending December 31, 2015.
	In 2014, the company expects to issue to employees approximately 2.5 million shares of common stock with a grant date fair value of $80 million, principally related to the 2011 RPSR awards that vested as of December 31, 2013. The ultimate amount of shares to be paid out is subject to approval by the Compensation Committee of the Board of Directors and may vary from this estimate.
	Cash Awards
	In 2013, the company granted certain employees cash units (CUs) and cash performance units (CPUs) with a minimum aggregate payout amount of $32 million and a maximum aggregate payout amount of $173 million. The majority of cash awards were granted on February 20, 2013. The CUs will vest and settle in cash on the third anniversary of the grant date, while the CPUs will vest and settle in cash based on the achievement of financial metrics for the three-year period ending December 31, 2015. At December 31, 2013, there was $108 million of unrecognized compensation expense related to cash awards.

Unaudited_Selected_Quarterly_D

Unaudited Selected Quarterly Data	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Unaudited Selected Quarterly Data	'
	UNAUDITED SELECTED QUARTERLY DATA
	Unaudited quarterly financial results are set forth in the following tables. It is the company’s long-standing practice to establish actual interim closing dates using a “fiscal” calendar, which requires the businesses to close their books on a Friday, in order to normalize the potentially disruptive effects of quarterly close on business processes. The effects of this practice only exist within a reporting year.
	2013
	In millions, except per share amounts	1st Qtr		2nd Qtr		3rd Qtr		4th Qtr
	Sales		$6,104		$6,294		$6,106		$6,157
	Operating income	759		806		790		768
	Net earnings	489		488		497		478
	Basic earnings per share	2.07		2.09		2.18		2.17
	Diluted earnings per share	2.03		2.05		2.14		2.12
	Weighted-average common shares outstanding	236.4		234		228.2		220.5
	Weighted-average diluted shares outstanding	241		237.5		232.6		225.2
	Significant 2013 Fourth Quarter Events – In the fourth quarter of 2013, the company repurchased 6.6 million shares of common stock for $699 million.
	2012
	In millions, except per share amounts	1st Qtr		2nd Qtr		3rd Qtr		4th Qtr
	Sales		$6,198		$6,274		$6,270		$6,476
	Operating income	796		774		736		824
	Net earnings	506		480		459		533
	Basic earnings per share	2		1.91		1.86		2.19
	Diluted earnings per share	1.96		1.88		1.82		2.14
	Weighted-average common shares outstanding	253.1		250.8		247.2		243.4
	Weighted-average diluted shares outstanding	258		254.7		252.1		248.9
	Significant 2012 Fourth Quarter Events – In the fourth quarter of 2012, the company repurchased 7.3 million shares of common stock for $487 million.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of Northrop Grumman and its subsidiaries. All material intercompany accounts, transactions, and profits are eliminated in consolidation. Investments in equity securities and joint ventures where the company has significant influence, but not control, are accounted for using the equity method.
	Sales between segments are recorded at values that include hypothetical operating income for the performing segment based on that segment’s estimated operating margin rate for external sales. Such hypothetical operating income is eliminated in consolidation
Accounting Estimates	'
	Accounting Estimates
	The company’s financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (GAAP). The preparation thereof requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Estimates have been prepared using the most current and best available information; however, actual results could differ materially from those estimates.
Revenue Recognition	'
	Revenue Recognition
	The majority of our business results are derived from long-term contracts with the U.S. Government for the production of goods, the provision of services, or in some cases, a combination of both. In accounting for these contracts, we utilize either the cost-to-cost or the units-of-delivery method of percentage-of-completion accounting. Generally, sales under cost-reimbursement contracts and construction-type contracts that provide for deliveries at lower volume rates per year or a small number of units are accounted for using the cost-to-cost method. Under this method, sales, including estimated profits, are recorded as costs are incurred. Generally, sales under contracts that provide for deliveries at higher volume rates per year or a large number of units are accounted for using the units-of-delivery method. Under this method, sales are recognized as units are delivered to the customer. The company estimates profit on contracts as the difference between total estimated revenue and total estimated cost of a contract at completion and recognizes that profit either as costs are incurred (cost-to-cost) or as units are delivered (units-of-delivery). The company classifies revenue as product or service depending upon the predominant attributes of the contract.
	Contract revenues may include estimated amounts not contractually agreed to by the customer, including price redetermination, cost or performance incentives (such as award and incentive fees), un-priced change orders, claims, and requests for equitable adjustment. Amounts pertaining to provisions for price redetermination or for cost and/or performance incentives are included in sales when they are reasonably estimable. Further, as contracts are performed, change orders can be a regular occurrence and may be un-priced until negotiated with the customer. Un-priced change orders are included in revenue when they are probable of recovery in an amount at least equal to the cost. Amounts representing claims (including change orders unapproved as to both scope and price) and requests for equitable adjustment are included in estimated contract revenue only when they are reliably estimable and realization is probable.
	The company's U.S. Government contracts generally contain provisions that enable the customer to terminate a contract for default, or for the convenience of the government. If a contract is terminated for default, the contractor may not be entitled to recover any of its costs on partially completed work and may be liable to the government for re-procurement costs of acquiring similar products or services from another contractor, and for certain other damages. Termination of a contract for the convenience of the government may occur when the government concludes it is in the best interests of the government that the contract be terminated. Under a termination for convenience, the contractor is typically entitled to be paid in accordance with the contract’s terms for costs incurred prior to the effective date of termination, plus a reasonable profit and settlement expenses.
	Changes in estimates of contract sales, costs, or profits are recognized using the cumulative catch-up method of accounting. This method recognizes, in the current period, the cumulative effect of the changes on current and prior periods. Revenue and profit on future periods of contract performance are recognized as if the revised estimate had been used since contract inception. If it is determined that a loss will result from the performance of a contract, the entire amount of the estimable future loss is charged against income in the period the loss is identifiable. Loss provisions are first offset against costs that are included in unbilled accounts receivable or inventoried costs, and any remaining amount is reflected in liabilities.
	Changes in contract estimates occur for a variety of reasons, including changes in contract scope, estimated revenue and cost estimates. These changes are often driven by events such as changes in estimated incentive fees, unanticipated risks affecting contract costs, the resolution of risk at lower or higher cost than anticipated, and changes in indirect cost allocations, such as overhead and general and administrative expenses. We employ an extensive contract management process involving several functional organizations and numerous personnel who are skilled at managing contract activities. Changes in estimates are frequent; the company performs on a broad portfolio of long-term contracts, many of which include complex and customized aerospace and electronic equipment and software, that often include technology at the forefront of science.
	Significant changes in estimates on a single contract could have a material effect on the company's consolidated financial position or annual results of operations, and where such changes occur, separate disclosure is made of the nature, underlying conditions and financial impact of the change.
General and Administrative Expenses	'
	General and Administrative Expenses
	In accordance with industry practice and regulations that govern the cost accounting requirements for government contracts, most general and administrative expenses incurred at both the segment and corporate locations are considered allowable and allocable costs on government contracts. These costs are allocated to contracts in progress on a systematic basis and are included as a component of total contract costs, including any provision for loss contracts.
Research and Development	'
	Research and Development
	Company-sponsored research and development activities primarily include independent research and development (IR&D) efforts related to government programs. Company-sponsored IR&D expenses are included in general and administrative expenses in the consolidated statements of earnings and comprehensive income and are generally allocated to government contracts.
	Expenses for research and development funded by the customer are charged directly to the related contracts.
Environmental costs	'
	Environmental Costs
	Environmental liabilities are accrued when the company determines that, based on the facts and circumstances known to the company, such amounts are reasonably estimable and it is probable a liability will be found to have been incurred. When only a range of amounts is established and no amount within the range is more probable than another, the low end of the range is recorded. The company typically projects environmental costs for up to 30 years and records environmental liabilities on an undiscounted basis, and does not include legal costs or asset retirement obligations. At sites involving multiple parties, the company accrues environmental liabilities based upon our expected share of liability, taking into account the financial viability of other jointly liable parties. Environmental expenditures are capitalized or expensed, as appropriate. As a portion of environmental remediation costs is expected to be recoverable through overhead charges on government contracts, such amounts are deferred in inventoried costs (current portion) and other non-current assets. Certain capitalized expenditures relate to long-lived improvements in currently operating facilities. The portion of environmental expenditures not expected to be recoverable is expensed. The company does not record insurance recoveries before collection is probable.
	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.
	A portion of the environmental remediation costs is expected to be recoverable through overhead charges on U.S. government contracts and, accordingly, such amounts are deferred in inventoried costs and other non-current assets.
	These amounts are evaluated for recoverability on a routine basis.
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	The company utilizes fair value measurement guidance prescribed by GAAP to value its financial instruments. The guidance includes a definition of fair value, prescribes methods for measuring fair value, establishes a fair value hierarchy based on the inputs used to measure fair value and expands disclosures about the use of fair value measurements.
	The valuation techniques utilized are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect internal market assumptions.
	These two types of inputs create the following fair value hierarchy:
	Level 1 - Quoted prices for identical instruments in active markets.
	Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.
	Level 3 - Significant inputs to the valuation model are unobservable.
Marketable Securities	'
	Marketable securities accounted for as trading and available-for-sale are recorded at fair value. For available-for-sale securities, any changes in unrealized gains and losses are reported as a component of other comprehensive income. Changes in unrealized gains and losses on trading securities are included in other, net in the consolidated statements of earnings and comprehensive income. In addition, investments in held-to-maturity instruments with original maturities greater than three months are recorded at amortized cost.
	The company holds a portfolio of marketable securities to partially fund long-term deferred compensation programs, consisting of equity securities that are classified as either trading or available-for-sale, which can be liquidated without restriction. These assets are recorded at fair value and substantially all of these instruments are valued using Level 1 inputs, with an immaterial amount valued using Level 2 inputs.
Derivative Financial Instruments	'
	Derivative financial instruments are recognized as assets or liabilities in the financial statements and measured at fair value. Changes in the fair value of derivative financial instruments that qualify and are designated as fair value hedges are recorded in earnings from continuing operations, while the effective portion of the changes in the fair value of derivative financial instruments that qualify and are designated as cash flow hedges are recorded as a component of other comprehensive income. The company may use derivative financial instruments to manage its exposure to interest rate and foreign currency exchange risks and to balance its fixed and variable rate long-term debt portfolio. The company does not use derivative financial instruments for trading or speculative purposes, nor does it use leveraged financial instruments. Credit risk related to derivative financial instruments is considered minimal and is managed by requiring high credit standards for counterparties and through periodic settlements of positions. For derivative financial instruments not designated as cash flow hedging instruments, gains or losses resulting from changes in the fair value are reported in other, net in the consolidated statements of earnings and comprehensive income.
	The company's derivative portfolio consists primarily of foreign currency forward contracts, which are used to manage foreign currency exchange risk related to receipts from customers and payments to suppliers denominated in foreign currencies.
	Derivative financial instruments are recognized as assets or liabilities in the financial statements and measured at fair value. Substantially all of these instruments are valued using Level 2 inputs. Where model-derived valuations are appropriate, the company utilizes the income approach to determine the fair value and uses the applicable London Interbank Offered Rate (LIBOR) swap rates.
	Unrealized gains or losses on the effective portion of cash flow hedges are reclassified from other comprehensive income to operating income upon the settlement of the underlying transactions.
Income Taxes	'
	Income Taxes
	Provisions for federal and foreign income taxes are calculated on reported financial statement pre-tax income based on current tax law and include the cumulative effect of any changes in tax rates from those used previously in determining deferred tax assets and liabilities. Such provisions differ from the amounts currently payable because certain items of income and expense are recognized in different periods for financial reporting purposes than for income tax purposes. The company recognizes federal interest accrued related to unrecognized tax benefits in income tax expense. Federal penalties are recognized as a component of income tax expense. In accordance with industry practice and regulations that govern the cost accounting requirements for government contracts, state and local income and franchise taxes are considered allowable and allocable costs on government contracts and are therefore recorded in operating costs and expenses. The company recognizes state interest accrued related to unrecognized tax benefits in unallowable operating costs and expenses.
	Uncertain tax position represents the company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return or claim, that has not been reflected in measuring income tax expense for financial reporting purposes. Until these positions are sustained by the taxing authorities or the statute of limitations concerning such issues lapses, the company does not recognize the tax benefits resulting from such positions and reports the tax effects as a liability for uncertain tax positions in its consolidated statements of financial position.
	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and tax purposes. Such amounts are classified in the consolidated statements of financial position as current or non-current assets or liabilities, based upon the classification of the related assets and liabilities.
Cash and cash equivalents	'
	Cash and Cash Equivalents
	Cash and cash equivalents are comprised of cash in banks and highly liquid instruments with original maturities of three months or less, primarily consisting of bank time deposits and investments in institutional money market funds. The company does not invest in high yield or high risk securities. Cash in bank accounts at times may exceed federally insured limits.
Accounts Receivable	'
	Accounts Receivable and Inventoried Costs
	Accounts receivable include amounts billed and currently due from customers, as well as amounts currently due but unbilled (primarily related to costs incurred on contracts accounted for under the cost-to-cost method of percentage-of-completion accounting). Accounts receivable also include certain estimated contract change amounts, claims or requests for equitable adjustment in negotiation that are probable of recovery and amounts retained by the customer pending contract completion.
	Accumulated contract costs in unbilled accounts receivable and inventoried costs include direct production costs, factory and engineering overhead, production tooling costs, and, for government contracts, allowable general and administrative expenses. According to the provisions of U.S. Government contracts, the customer asserts title to, or a security interest in, inventories related to such contracts as a result of contract advances, performance-based payments, and progress payments. In accordance with industry practice, unbilled accounts receivable and inventoried costs are classified as current assets and include amounts related to contracts having production cycles longer than one year. Payments received in excess of inventoried costs and unbilled accounts receivable amounts on a contract by contract basis are recorded as advance payments and amounts in excess of costs incurred in the consolidated statements of financial position.
Inventoried Costs	'
	Inventoried costs primarily relate to work in process on contracts accounted for under the units-of-delivery method of percentage-of-completion accounting. These costs represent accumulated contract costs less the portion of such costs allocated to delivered items. Product inventory primarily consists of raw materials and is stated at the lower of cost or market, generally using the average cost method.
Property, Plant and Equipment	'
	Property, Plant and Equipment
	Property, plant and equipment are depreciated over the estimated useful lives of individual assets. Most of these assets are depreciated using declining-balance methods, with the remainder using the straight-line method. Major classes of property, plant and equipment and their useful lives are as follows:
				December 31
	Useful life in years, $ in millions		Useful Life	2013			2012
	Land and land improvements		Up to 40(1)		$373			$373
	Buildings and improvements		Up to 45	1,450			1,421
	Machinery and other equipment		Up to 20	4,243			4,233
	Capitalized software costs		5-Mar	418			413
	Leasehold improvements		Length of Lease(1)	659			593
	Property, plant and equipment, at cost			7,143			7,033
	Accumulated depreciation			(4,337		)	(4,146		)
	Property, plant and equipment, net				$2,806			$2,887
	-1	Land is not a depreciable asset. Leasehold improvements are depreciated over the useful life of the asset if it is shorter than the length of the lease.
Leases	'
	Leases
	The company uses its incremental borrowing rate in the assessment of lease classification as capital or operating and defines the initial lease term to include renewal options determined to be reasonably assured. The majority of our leases are operating leases.
	Many of the company’s real property lease agreements contain incentives for tenant improvements, rent holidays, or rent escalation clauses. For tenant improvement incentives, the company records a deferred rent liability and amortizes the deferred rent over the term of the lease as a reduction to rent expense. For rent holidays and rent escalation clauses during the lease term, the company records rental expenses on a straight-line basis over the term of the lease. For purposes of recognizing lease incentives, the company uses the date of initial possession as the commencement date, which is generally when the company is given the right of access to the space and begins to make improvements in preparation of intended use.
Goodwill and Other Purchased Intangible Assets	'
	Goodwill and Other Purchased Intangible Assets
	The company performs impairment tests for goodwill annually or when the company believes a potential impairment exists. When it is determined that impairment has occurred, a charge to operations is recorded. Goodwill and other purchased intangible asset balances are included in the identifiable assets of the business segment to which they have been assigned. Purchased intangible assets are generally amortized on a straight-line basis over their estimated useful lives. In the fourth quarter of 2013, the company changed the date of its annual goodwill impairment test from November 30 to December 31. This change in accounting principle is preferable as it aligns the timing of our annual goodwill impairment test with our year-end financial reporting process. This change did not result in the acceleration, delay or avoidance of an impairment charge. The company applied the change in the annual impairment date retrospectively to January 1, 2011; it is impracticable to objectively determine valuation estimates necessary to apply the change in periods prior to that date. There were no changes in previously reported amounts as a result of retrospectively applying the change in the annual impairment testing date. As a result of this change, during 2013, we performed an annual goodwill impairment test as of November 30 and as of December 31.
	The company’s purchased intangible assets are being amortized on a straight-line basis over an aggregate weighted-average period of 21 years and are included in other non-current assets in the consolidated statements of financial position.
	In performing the goodwill impairment tests, the company uses a discounted cash flow approach corroborated by comparative market multiples, where appropriate, to determine the fair value of its businesses.
	Goodwill and other purchased intangible assets are included in the identifiable assets of the segment to which the operations of the acquired entity have been assigned. Impairment tests are performed at least annually and more often as circumstances require. Any goodwill impairment, as well as the amortization of other purchased intangible assets, is charged against the respective segment’s operating income. Historically, our annual goodwill impairment test has been performed as of November 30.
Cash Surrender Value of Life Insurance Policies	'
	Cash Surrender Value of Life Insurance Policies
	The company maintains whole life insurance policies on a group of executives, which are recorded at their cash surrender value as determined by the insurance carrier. The company also has split-dollar life insurance policies on former officers and executives from acquired businesses, which are recorded at the lesser of their cash surrender value or premiums paid. These policies are utilized as a partial funding source for deferred compensation and other non-qualified employee retirement plans.
Litigation, Commitments, and Contingencies	'
	Litigation, Commitments and Contingencies
	Amounts associated with litigation, commitments, and contingencies are recorded as charges to earnings when management, after taking into consideration the facts and circumstances of each matter as then known to management, including any settlement offers, has determined it is probable a liability will be found to have been incurred and the amount of the loss can be reasonably estimated. When only a range of amounts is established and no amount within the range is more likely than another, the low end of the range is recorded. Legal fees are expensed as incurred.
	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.
Retirement Benefits	'
	Retirement Benefits
	The company sponsors various pension plans covering substantially all employees. The company also provides post-retirement benefit plans other than pensions, consisting principally of health care and life insurance benefits, to eligible retirees and qualifying dependents. The liabilities, unamortized benefit plan costs and annual income or expense of the company’s pension and other post-retirement benefit plans are determined using methodologies that involve several actuarial assumptions, the most significant of which are the discount rate, the expected long-term rate of return on plan assets, and the cash balance crediting rate. Unamortized benefit plan costs consist primarily of accumulated net after-tax actuarial losses.
	Because U.S. Government regulations require that the costs of pension and other post-retirement plans be charged to our contracts with customers in accordance with the Federal Acquisition Regulation and the related CAS (U.S. Government Cost Accounting Standards) that govern such plans, we calculate retiree benefit plan costs under both CAS and FAS (GAAP Financial Accounting Standards) methods. While both FAS and CAS recognize a normal service cost component in measuring periodic pension cost, there are differences in the way the remaining components of annual pension costs are calculated under each method. Measuring plan obligations under FAS and CAS methods utilize different assumptions and models, such as in estimating earnings on plan assets and calculating interest expense. In addition, the periods over which gains/losses related to pension assets and actuarial changes are amortized are different under each FAS/CAS method. As a result, annual retiree benefit plan expense amounts for FAS are different from the amounts for CAS even though the ultimate cost of providing benefits is the same under either method. CAS retiree benefit plan costs are charged to contracts and are included in segment operating income, and the difference between CAS and FAS expense is recorded in operating income at the consolidated company level.
	Net actuarial gains or losses are amortized to expense on a plan-by-plan basis when they exceed the accounting corridor. The accounting corridor is a defined range within which amortization of net gains and losses is not required and is equal to 10 percent of the greater of the plan assets or benefit obligations. Gains or losses outside of the corridor are subject to amortization over our average employee future service period of approximately nine years. The fair values of plan assets are determined based on prevailing market prices or estimated fair value for investments with no available quoted prices. Not all net periodic pension expense is recognized in net earnings in the year incurred because it is allocated as production costs and a portion remains in inventory at the end of a reporting period. The company’s funding policy for the qualified pension plans is to contribute, at a minimum, the statutorily required amount to an irrevocable trust.
	For alternative investments that permit redemptions, such redemptions are generally made quarterly and require a 90-day notice. The company is generally unable to determine the final redemption date and amount until the request is processed by the investment fund and therefore categorizes such alternative investments as Level 3 assets.
	The discount rate is generally based on the yield of high-quality corporate fixed-income investments. At the end of each year, the discount rate is primarily determined using a portfolio of high-quality bonds matching the notional cash inflows with the expected benefit payments for each significant benefit plan.
	Through consultation with investment advisors, expected long-term returns for each of the plans’ strategic asset classes were developed. Several factors were considered, including current market data such as yields/price-earnings ratios, historical market returns over long periods and periodic surveys of investment managers’ expectations. Using policy target allocation percentages and the asset class expected returns, a weighted-average expected return was calculated.
	The assumptions used for pension benefits are consistent with those used for retiree medical and life insurance benefits. The long-term rate of return on plan assets used for medical and life benefits is reduced to allow for the impact of tax on expected returns as the earnings of certain Voluntary Employee Beneficiary Association (VEBA) trusts are taxable, unlike the pension trust.
	Plan assets are invested in various asset classes that are expected to produce a sufficient level of diversification and investment return over the long term. The investment goal is to exceed the assumed rate of return over the long term within reasonable and prudent levels of risk. Liability studies are conducted on a regular basis to provide guidance in setting investment goals with an objective to balance risk. Risk targets are established and monitored against acceptable ranges.
	Our investment policies and procedures are designed to ensure the plans’ investments are in compliance with ERISA (Employee Retirement Income Security Act). Guidelines are established defining permitted investments within each asset class. Derivatives are used for transitioning assets, asset class rebalancing, managing currency risk and for management of fixed income and alternative investments.
	For the majority of the plans’ assets, the investment policies require that the asset allocation be maintained within the following ranges as of December 31, 2013:
			Asset Allocation Ranges
	Domestic equities		10% - 30%
	International equities		5% - 25%
	Fixed income securities		30% - 50%
	Alternative investments		15% - 30%
	Generally, investments are valued based on information in financial publications of general circulation, statistical and valuation services, records of security exchanges, appraisal by qualified persons, transactions and bona fide offers. Domestic and international equities consist primarily of common stocks and institutional common trust funds. Investments in common and preferred shares are valued at the last reported sales price of the stock on the last business day of the reporting period. Units in common trust funds and hedge funds are valued based on the redemption price of units owned by the trusts at year-end. Fair value for real estate and private equity partnerships is primarily based on valuation methodologies that include third party appraisals, comparable transactions, discounted cash flow valuation models and public market data.
	Non-government fixed income securities are invested across various industry sectors and credit quality ratings. Generally, investment guidelines are written to limit securities, for example, to no more than 5 percent of each trust account, and to exclude the purchase of securities issued by the company.
Stock Compensation	'
	Stock Compensation
	The company’s stock compensation plans are classified as equity plans and compensation expense is recognized over the vesting period (generally three years), net of estimated forfeitures. The company issues stock awards in the form of restricted performance stock rights and restricted stock rights under its existing plans. The fair value of stock awards is determined based on the closing market price of the company’s common stock on the grant date. At each reporting date, the number of shares is adjusted to equal the number ultimately expected to vest.
	Compensation expense for stock awards is measured at the grant date based on the fair value of the award and is recognized over the vesting period (generally three years). The fair value of stock awards and performance stock awards is determined based on the closing market price of the company’s common stock on the grant date. The fair value of market-based stock awards is determined at the grant date using a Monte Carlo simulation model. For purposes of measuring compensation expense for performance awards, the number of shares ultimately expected to vest is estimated at each reporting date based on management’s expectations regarding the relevant performance criteria.
Foreign Currency Translation	'
	Foreign Currency Translation
	For operations outside the U.S. that have functional currencies other than the U.S. dollar, results of operations and cash flows are translated at average exchange rates during the period, and assets and liabilities are translated at end-of-period exchange rates. Translation adjustments are generally included as a component of other comprehensive income in the consolidated statements of earnings and comprehensive income.
Accumulated Other Comprehensive Loss	'
	Net actuarial gains or losses are re-determined annually and principally arise from changes in the rate used to discount our benefit obligations, as well as differences in expected and actual returns on plan assets.
	The reclassifications represent the amortization of net actuarial losses and prior service credits for the company's retirement benefit plans, and are included in the computation of net periodic pension cost (See Note 13 for further information).
	Reclassifications for cumulative translation adjustments and marketable securities are recorded in other income, and reclassifications for effective cash flow hedges are recorded in operating income.
Earnings Per Share	'
	Basic earnings per share from both continuing and discontinued operations are calculated by dividing the respective earnings by the weighted-average number of shares of common stock outstanding during each period.
Long-Term Debt	'
	The premium on long-term debt primarily represents non-cash fair market value adjustments resulting from acquisitions, which are amortized over the life of the related debt.
Long-Term Debt, Fair Value	'
	The fair value of long-term debt is calculated using Level 2 inputs, based on interest rates available for debt with terms and maturities similar to the company’s existing debt arrangements.
Fiscal Month Accounting Convention	'
	It is the company’s long-standing practice to establish actual interim closing dates using a “fiscal” calendar, which requires the businesses to close their books on a Friday, in order to normalize the potentially disruptive effects of quarterly close on business processes. The effects of this practice only exist within a reporting year.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
	Major classes of property, plant and equipment and their useful lives are as follows:
					December 31
	Useful life in years, $ in millions		Useful Life		2013				2012
	Land and land improvements		Up to 40(1)			$373				$373
	Buildings and improvements		Up to 45		1,450				1,421
	Machinery and other equipment		Up to 20		4,243				4,233
	Capitalized software costs		5-Mar		418				413
	Leasehold improvements		Length of Lease(1)		659				593
	Property, plant and equipment, at cost				7,143				7,033
	Accumulated depreciation				(4,337		)		(4,146		)
	Property, plant and equipment, net					$2,806				$2,887
	-1	Land is not a depreciable asset. Leasehold improvements are depreciated over the useful life of the asset if it is shorter than the length of the lease.
Accumulated Other Comprehensive Loss	'
	The components of accumulated other comprehensive loss are as follows:
			December 31
	$ in millions		2013				2012
	Unamortized benefit plan costs, net of tax benefit of $1,972 in 2013 and $3,149 in 2012			($3,000	)			($4,790	)
	Cumulative translation adjustment		18				4
	Net unrealized loss on marketable securities and cash flow hedges, net of tax benefit of $1 in 2013 and $0 in 2012		(2		)		(1		)
	Total accumulated other comprehensive loss			($2,984	)			($4,787	)

Earnings_Per_Share_Share_Repur1

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Share Repurchases	'
	The table below summarizes the company’s share repurchases:
	Repurchase Program		Amount		Total Shares Retired (in millions)	Average		Date Completed	Shares Repurchased
	Authorization Date		Authorized			Price			(in millions)
			(in millions)			Per Share(2)			Year Ended December 31
									2013	2012	2011
	16-Jun-10			$5,350	83.7		$63.86	Sep-13	18.6	20.9	40.2
	May 15, 2013(1)			$4,000	8.7		$103.37		8.7	—	—
									27.3	20.9	40.2
	-1	On May 15, 2013, the company's board of directors authorized a share repurchase program of up to $4.0 billion of the company’s common stock. Repurchases under this program commenced in September 2013 upon the completion of the company's 2010 repurchase program. As of December 31, 2013, repurchases under the program totaled $895 million, and $3.1 billion remained under this share repurchase authorization. The repurchase program is expected to expire when we have used all authorized funds for repurchase.
	-2	Includes commissions paid.

Business_Dispositions_Tables

Business Dispositions (Tables)	12 Months Ended
	Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
Discontinued Operations, Income Statement Disclosures	'
	Earnings for the former shipbuilding business and an adjustment to the gain from a previous divestiture, are reported as discontinued operations, as presented in the following table:
		Year Ended December 31,
	$ in millions	2011
	Sales		$1,646
	Earnings from discontinued operations	59
	Income tax expense	(28		)
	Earnings, net of tax	31
	Gain on divestiture, net of income tax expense of $1	1
	Earnings from discontinued operations, net of tax		$32

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Sales and service revenues by segment	'
	The following table presents sales and operating income by segment:
			Year Ended December 31
	$ in millions		2013				2012			2011
	Sales
	Aerospace Systems			$10,014				$9,977			$9,964
	Electronic Systems		7,149				6,950			7,372
	Information Systems		6,596				7,356			7,921
	Technical Services		2,843				3,019			3,193
	Intersegment eliminations		(1,941		)		(2,084		)	(2,038		)
	Total sales		24,661				25,218			26,412
	Operating income
	Aerospace Systems		1,215				1,218			1,217
	Electronic Systems		1,226				1,187			1,070
	Information Systems		633				761			766
	Technical Services		262				268			260
	Intersegment eliminations		(256		)		(258		)	(258		)
	Total segment operating income		3,080				3,176			3,055
	Reconciliation to operating income:
	Net FAS/CAS pension adjustment		168				132			400
	Unallocated corporate expenses		(119		)		(168		)	(166		)
	Other		(6		)		(10		)	(13		)
	Total operating income			$3,123				$3,130			$3,276
Intersegment sales and operating income	'
	Intersegment sales and operating income before eliminations were as follows:
			Year Ended December 31
	$ in millions		2013							2012						2011
			Sales			Operating				Sales			Operating			Sales		Operating
						Income							Income					Income
	Intersegment sales and operating income
	Aerospace Systems			$149				$18			$171				$20		$134		$	18
	Electronic Systems		629				125			607				110		649			131
	Information Systems		504				63			682				78		687			68
	Technical Services		659				50			624				50		568			41
	Total			$1,941				$256			$2,084				$258		$2,038			$258
Total assets by segment	'
			December 31
	$ in millions		2013				2012
	Assets
	Aerospace Systems			$6,490				$6,657
	Electronic Systems		4,400				4,551
	Information Systems		6,887				6,940
	Technical Services		1,367				1,313
	Segment assets		19,144				19,461
	Corporate assets (1)		7,237				7,082
	Total assets			$26,381				$26,543
	-1	Corporate assets principally consist of cash and cash equivalents and deferred tax assets.
Additional information by segment	'
			Capital Expenditures											Depreciation and Amortization
	$ in millions		2013				2012			2011				2013		2012			2011
	Aerospace Systems			$198				$154			$184				$210		$196			$200
	Electronic Systems		76				84			121				134		139			144
	Information Systems		27				40			45				81		100			121
	Technical Services		3				3			1				4		4			4
	Corporate		60				50			141				66		71			75
	Total from continuing operations			$364				$331			$492				$495		$510			$544

Accounts_Receivable_Net_Tables

Accounts Receivable, Net (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Accounts receivable	'
	Accounts receivable consisted of the following:
		December 31
	$ in millions	2013			2012
	Due from U.S. Government
	Billed		$596			$783
	Unbilled	5,801			5,284
	Progress and performance-based payments received	(4,385		)	(3,907		)
		2,012			2,160
	Due from Other Customers (inclusive of foreign military sales)
	Billed	296			325
	Unbilled	2,830			1,992
	Progress and performance-based payments received	(2,384		)	(1,559		)
		742			758
	Total accounts receivable	2,754			2,918
	Allowance for doubtful accounts	(69		)	(60		)
	Total accounts receivable, net		$2,685			$2,858

Inventoried_Costs_Net_Tables

Inventoried Costs, Net (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventoried Costs	'
	Inventoried costs consisted of the following:
		December 31
	$ in millions	2013			2012
	Production costs of contracts in process		$1,342			$1,593
	General and administrative expenses	259			262
		1,601			1,855
	Progress and performance-based payments received	(1,005		)	(1,167		)
		596			688
	Product inventory	102			110
	Total inventoried costs, net		$698			$798

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income tax expense	'
	Federal and foreign income tax expense consisted of the following:
		Year Ended December 31
	$ in millions	2013			2012			2011
	Income Taxes on Continuing Operations
	Currently payable
	Federal income taxes		$803			$912			$592
	Foreign income taxes	28			15			18
	Total federal and foreign income taxes currently payable	831			927			610
	Deferred federal and foreign income taxes	80			60			387
	Total federal and foreign income taxes		$911			$987			$997
Income tax reconciliation	'
	Income tax expense differs from the amount computed by multiplying the statutory federal income tax rate times the earnings from continuing operations before income taxes due to the following:
		Year Ended December 31
	$ in millions	2013			2012			2011
	Income tax expense on continuing operations at statutory rate		$1,002			$1,038			$1,079
	Manufacturing deduction	(63		)	(42		)	(32		)
	Research tax credit	(37		)	—			(17		)
	Other, net	9			(9		)	(33		)
	Total federal and foreign income taxes		$911			$987			$997
Unrecognized tax benefit rollforward	'
	The change in unrecognized tax benefits during 2013, 2012 and 2011, excluding interest, is as follows:
		December 31
	$ in millions	2013			2012			2011
	Unrecognized tax benefits at beginning of the year		$156			$118			$126
	Additions based on tax positions related to the current year	56			12			11
	Additions for tax positions of prior years	44			28			31
	Other, net	(15		)	(2		)	(50		)
	Net change in unrecognized tax benefits	85			38			(8		)
	Unrecognized tax benefits at end of the year		$241			$156			$118
Components of deferred tax assets and liabilities	'
	The tax effects of significant temporary differences and carryforwards that gave rise to year-end deferred federal, state and foreign tax balances, as presented in the consolidated statements of financial position, are as follows:
		December 31
	$ in millions	2013			2012
	Deferred Tax Assets
	Retirement benefits		$1,308			$2,710
	Provisions for accrued liabilities	646			675
	Stock-based compensation	109			146
	Other	144			151
	Gross deferred tax assets	2,207			3,682
	Less valuation allowance	(55		)	(52		)
	Net deferred tax assets	2,152			3,630
	Deferred Tax Liabilities
	Goodwill	806			804
	Property, plant, and equipment, net	348			376
	Contract accounting differences	134			199
	Other	50			135
	Gross deferred tax liabilities	1,338			1,514
	Total net deferred tax assets		$814			$2,116

Goodwill_and_Other_Purchased_I1

Goodwill and Other Purchased Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill	'
	The changes in the carrying amounts of goodwill for the years ended December 31, 2013 and 2012, were as follows:
	$ in millions	Aerospace			Electronic			Information		Technical		Total
		Systems			Systems			Systems		Services
	Balance as of December 31, 2011		$3,801			$2,400			$5,248		$925		$12,374
	Businesses acquired, sold and other	(43		)	10			39		51		57
	Balance as of December 31, 2012		$3,758			$2,410			$5,287		$976		$12,431
	Businesses acquired	—			—			7		—		7
	Balance as of December 31, 2013		$3,758			$2,410			$5,294		$976		$12,438
Schedule of Purchased Intangible Assets	'
	Net contract, program, and other intangible assets were comprised of the following:
		31-Dec
	$ in millions	2013			2012
	Gross contract, program and other intangible assets		$1,812			$1,819
	Less accumulated amortization	(1,708		)	(1,682		)
	Net contract, program and other intangible assets	$104				$137
Expected Future Amortization of Purchased Intangibles	'
	As of December 31, 2013, the expected future amortization of purchased intangibles for each of the next five years is as follows:
	$ in millions
	Year Ending December 31
	2014		$20
	2015	18
	2016	12
	2017	10
	2018	9

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair value of assets and liabilities measured on a recurring basis	'
	The following table presents the fair value information for those assets and liabilities measured at fair value on a recurring basis:
		December 31, 2013							December 31, 2012
	$ in millions	Carrying				Fair			Carrying				Fair
		Value				Value			Value				Value
	Financial Assets (Liabilities)
	Marketable securities
	Trading			$308			$308				$259			$259
	Available-for-sale		2			2				3			3
	Derivatives		(2		)	(2		)		(1		)	(1		)
	Long-term debt, including current portion		(5,930		)	(6,227		)		(3,935		)	(4,834		)

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-term debt	'
	Long-term debt consists of the following:
	$ in millions			December 31
				2013		2012
	Fixed-rate notes and debentures, maturing in		Interest rate
	2014		3.70%		$—		$350
	2015		1.85%	—		500
	2016		7.75%	107		107
	2018		1.75% - 6.75%	1,050		200
	2019		5.05%	500		500
	2021		3.50%	700		700
	2023		3.25%	1,050		—
	2026		7.75% - 7.88%	527		527
	2031		7.75%	466		466
	2040		5.05%	300		300
	2043		4.75%	950		—
	Capital leases		Various	35		32
	Other		Various	245		253
	Total long-term debt			5,930		3,935
	Less: current portion			2		5
	Long-term debt, net of current portion				$5,928		$3,930
Long-term debt maturities	'
	Maturities of long-term debt as of December 31, 2013, are as follows:
	$ in millions
	Year Ending December 31
	2014		$2
	2015	3
	2016	110
	2017	3
	2018	1,053
	Thereafter	4,757
	Total principal payments	5,928
	Unamortized premium on long-term debt, net of discount	2
	Total long-term debt		$5,930

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Rental Payments for Operating Leases	'
	Minimum rental commitments under long-term non-cancelable operating leases as of December 31, 2013, are payable as follows:
	$ in millions
	Year Ending December 31
	2014		$277
	2015	232
	2016	176
	2017	107
	2018	61
	Thereafter	90
	Total Minimum Lease Payments		$943

Retirement_Benefits_Tables

Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Components of net periodic benefit cost	'
	The cost to the company of its retirement benefit plans in each of the three years ended December 31 is shown in the following table:
			Year Ended December 31
			Pension Benefits												Medical and
															Life Benefits
	$ in millions		2013				2012				2011				2013			2012			2011
	Components of net periodic benefit cost
	Service cost			$516				$522				$520				$36			$34			$32
	Interest cost		1,117				1,184				1,223				96			109			114
	Expected return on plan assets		(1,809		)		(1,708		)		(1,690		)		(75		)	(68		)	(62		)
	Amortization of:
	Prior service (credit) cost		(58		)		(58		)		23				(51		)	(51		)	(51		)
	Net loss from previous years		608				427				162				30			21			17
	Other		—				7				—				—			—			(6		)
	Net periodic benefit cost			$374				$374				$238				$36			$45			$44
Changes in unamortized benefit plan costs	'
	The table below summarizes the components of changes in unamortized benefit plan costs for the years ended December 31, 2013, 2012 and 2011:
		Pension					Medical and
	$ in millions	Benefits					Life Benefits				Total
	Changes in unamortized benefit plan costs
	Change in net actuarial loss			$2,687				$138				$2,825
	Change in prior service cost		(608		)		6				(602		)
	Amortization of:
	Prior service (cost) credit		(23		)		51				28
	Net loss from previous years		(162		)		(17		)		(179		)
	Tax benefit related to above items		(752		)		(71		)		(823		)
	Change in unamortized benefit plan costs – 2011			$1,142				$107				$1,249
	Change in net actuarial loss			$2,353				$151				$2,504
	Change in prior service cost		(2		)		—				(2		)
	Amortization of:
	Prior service credit		58				51				109
	Net loss from previous years		(427		)		(21		)		(448		)
	Tax benefit related to above items		(788		)		(72		)		(860		)
	Change in unamortized benefit plan costs – 2012			$1,194				$109				$1,303
	Change in net actuarial loss			($2,158	)			($280	)			($2,438	)
	Amortization of:
	Prior service credit		58				51				109
	Net loss from previous years		(608		)		(30		)		(638		)
	Tax expense related to above items		1,075				102				1,177
	Change in unamortized benefit plan costs – 2013			($1,633	)			($157	)			($1,790	)
Amounts recorded in accumulated other comprehensive loss	'
			Pension							Medical and Life
			Benefits							Benefits
	$ in millions		2013			2012				2013			2012
	Amounts recorded in accumulated other comprehensive loss
	Net actuarial loss		($5,291	)			($8,057	)		($151	)		($461	)
	Prior service credit		423			481				47			98
	Income tax benefits related to above items		1,928			3,003				44			146
	Unamortized benefit plan costs		($2,940	)			($4,573	)		($ 60	)		($217	)
Change in projected benefit obligation	'
			Pension Benefits						Medical and
									Life Benefits
	$ in millions		2013			2012			2013			2012
	Change in projected benefit obligation
	Projected benefit obligation at beginning of year		$27,746			$24,129			$2,448			$2,235
	Service cost		516			522			36			34
	Interest cost		1,117			1,184			96			109
	Participant contributions		12			12			77			81
	Plan amendments		—			(1	)		—			—
	Actuarial (gain) loss		(2,063	)		3,114			(219	)		202
	Benefits paid		(1,365	)		(1,220	)		(227	)		(227	)
	Other		9			6			13			14
	Projected benefit obligation at end of year		$25,972			$27,746			$2,224			$2,448
Change in plan assets and amounts recognized in the consolidated statements of financial position	'
			Pension Benefits								Medical and
											Life Benefits
	$ in millions		2013				2012				2013				2012
	Change in plan assets
	Fair value of plan assets at beginning of year		$22,962				$21,340				$1,062					$946
	Gain on plan assets		1,907				2,463				137				119
	Employer contributions		579				366				114				129
	Participant contributions		12				12				77				81
	Benefits paid		(1,365		)		(1,220		)		(227		)		(227		)
	Other		3				1				12				14
	Fair value of plan assets at end of year		24,098				22,962				1,175				1,062
	Funded status		($ 1,874		)			($4,784	)		($1,049		)		($1,386		)
	Amounts recognized in the Consolidated Statements of Financial Position
	Non-current assets			$117				$7				$72				$49
	Current liability		(122		)		(111		)		(36		)		(30		)
	Non-current liability		(1,869		)		(4,680		)		(1,085		)		(1,405		)
Amounts expected to be Recognized in 2013 Net Periodic Benefit Cost	'
	The following table shows those amounts expected to be recognized in net periodic benefit cost in 2014:
	$ in millions	Pension Benefits				Medical and
						Life Benefits
	Amounts expected to be recognized in 2014 net periodic benefit cost
	Net actuarial loss		$327				$9
	Prior service credit		(59	)			(30	)
Pension plans with accumulated benefit obligations in excess of fair value of plan assets	'
	Amounts for pension plans with accumulated benefit obligations in excess of fair value of plan assets are as follows:
			December 31
	$ in millions		2013				2012
	Projected benefit obligation			$24,129				$27,645
	Accumulated benefit obligation		23,830				27,146
	Fair value of plan assets		22,138				22,853
Weighted-average plan assumptions	'
	On a weighted-average basis, the following assumptions were used to determine the benefit obligations and the net periodic benefit cost:
			Pension Benefits						Medical and
									Life Benefits
			2013			2012			2013			2012
	Assumptions used to determine benefit obligation at December 31
	Discount rate		4.99	%		4.12	%		4.9	%		4.02	%
	Initial cash balance crediting rate assumed for the next year		3.9	%		3	%
	Rate to which the cash balance crediting rate is assumed to increase (the ultimate rate)		4.7	%		4.25	%
	Year that the cash balance crediting rate reaches the ultimate rate		2019			2018
	Rate of compensation increase		3	%		2.75	%
	Initial health care cost trend rate assumed for the next year								6.5	%		7	%
	Rate to which the health care cost trend rate is assumed to decline (the ultimate trend rate)								5	%		5	%
	Year that the health care cost trend rate reaches the ultimate trend rate								2017			2017
	Assumptions used to determine benefit cost for the year ended December 31
	Discount rate		4.12	%		5.03	%		4.02	%		5.02	%
	Initial cash balance crediting rate assumed for the next year		3	%		3.25	%
	Rate to which the cash balance crediting rate is assumed to increase (the ultimate rate)		4.25	%		4.5	%
	Year that the cash balance crediting rate reaches the ultimate rate		2018			2017
	Expected long-term return on plan assets		8	%		8.25	%		7.33	%		7.44	%
	Rate of compensation increase		2.75	%		2.75	%
	Initial health care cost trend rate assumed for the next year								7	%		7.5	%
	Rate to which the health care cost trend rate is assumed to decline (the ultimate trend rate)								5	%		5	%
	Year that the health care cost trend rate reaches the ultimate trend rate								2017			2017
Effect of one-percentage point change in assumed health care cost trend rates	'
	A one-percentage-point change in the initial through the ultimate health care cost trend rates would have had the following estimated effect on 2013 other post-retirement benefit results:
	$ in millions	1-Percentage-					1-Percentage-
		Point Decrease					Point Increase
	Increase (decrease) from change in health care cost trend rates to
	Total service and interest cost		$	(5	)			$	4
	Other post-retirement benefit liability		(81		)			67
Plan asset allocation ranges	'
			Level 1								Level 2							Level 3						Total
	$ in millions		2013				2012				2013				2012			2013			2012			2013		2012
	Asset category
	Cash and cash equivalents(1)			$32				$92				$1,467				$1,748									$1,499		$1,840
	Domestic equities		4,163				3,657				287				318			2				$2		4,452		3,977
	International equities		2,473				1,700				1,741				2,319									4,214		4,019
	Fixed income securities
	U.S. Treasuries										1,602				1,780									1,602		1,780
	U.S. Government Agency										974				968									974		968
	Non-U.S. Government										422				401									422		401
	Corporate debt										4,744				4,123									4,744		4,123
	Asset backed										545				528			4			4			549		532
	High yield debt										922				1,139			1			28			923		1,167
	Bank loans										185				223									185		223
	Alternative Investments
	Hedge funds																	821			758			821		758
	Private equities																	2,075			1,980			2,075		1,980
	Real estate																	2,767			2,256			2,767		2,256
	Other		26				(5		)		20				5									46		—
	Fair value of plan assets at the end of the year			$6,694				$5,444				$12,909				$13,552			$5,670			$5,028			$25,273		$24,024
	-1	Cash and cash equivalents are predominantly held in money market funds.
	For the majority of the plans’ assets, the investment policies require that the asset allocation be maintained within the following ranges as of December 31, 2013:
			Asset Allocation Ranges
	Domestic equities		10% - 30%
	International equities		5% - 25%
	Fixed income securities		30% - 50%
	Alternative investments		15% - 30%
Changes in fair value of plan assets, significant unobservable inputs	'
	The changes in the fair value of the pension and VEBA plan trust assets measured using Level 3 significant unobservable inputs during 2013 and 2012, are as follows:
	$ in millions		Hedge funds and High-yield debt				Private equities				Real Estate				Other			Total
	Balance as of December 31, 2011			$1,446				$2,098				$1,788				$6			$5,338
	Actual return on plan assets:
	Unrealized gains (losses), net		23				(122		)		68				5			(26		)
	Realized gains (losses), net		47				—				—				(5		)	42
	Purchases		—				259				846				—			1,105
	Sales		(730		)		(255		)		(446		)		—			(1,431		)
	Balance as of December 31, 2012			$786				$1,980				$2,256				$6			$5,028
	Actual return on plan assets:
	Unrealized gains (losses), net		(16		)		112				262				—			358
	Realized gains (losses), net		43				—				—				—			43
	Purchases		200				666				763				—			1,629
	Sales		(191		)		(683		)		(514		)		—			(1,388		)
	Balance as of December 31, 2013			$822				$2,075				$2,767				$6			$5,670
Estimated benefit payments	'
	The following table reflects estimated future benefit payments for the next ten years, based upon the same assumptions used to measure the benefit obligation, and includes expected future employee service, as of December 31, 2013:
	$ in millions		Pension Plans				Medical and
							Life Plans
	Year Ending December 31
	2014			$1,341				$148
	2015		1,394				154
	2016		1,446				160
	2017		1,500				165
	2018		1,557				169
	2019 through 2023		8,556				860

Stock_Compensation_Plans_and_O1

Stock Compensation Plans and Other Compensation Arrangements (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Allocation of Stock-based Compensation Expense by Plan	'
	Stock-based compensation expense and the related tax benefits for the years ended December 31, 2013, 2012 and 2011, were as follows:
		Year Ended December 31
	$ in millions	2013			2012		2011
	Stock-based compensation expense:
	Stock options		$4			$10		$14
	Stock awards	140			173		125
	Total stock-based compensation expense	144			183		139
	Tax benefits from the exercise of stock options	25			26		18
	Tax benefits from the issuance of stock awards	16			19		37
	Total tax benefits recognized for stock-based compensation		$41			$45		$55
Stock Option Rollforward Activity	'
	Stock option activity for the year ended December 31, 2013, was as follows:
			Shares		Weighted-		Weighted-		Aggregate
			under Option		Average		Average		Intrinsic
			(in thousands)		Exercise		Remaining		Value
					Price		Contractual		($ in millions)
							Term
	Outstanding at January 1, 2013		6,271			$58	2.9 years			$66
	Exercised		(4,522	)	59
	Cancelled and forfeited		(29	)	60
	Outstanding at December 31, 2013		1,720		56		2.6 years		101
	Vested and expected to vest in the future at December 31, 2013		1,716		56		2.6 years		101
	Exercisable at December 31, 2013		1,343			$55	2.2 years			$80
Stock Award Rollforward Activity	'
			Stock		Weighted-		Weighted-
			Awards		Average		Average
			(in thousands)		Grant Date		Remaining
					Fair Value		Contractual
							Term (in years)
	Outstanding at January 1, 2011		4,300			$53	1.5
	Granted		1,748		63
	Vested		(1,824	)	42
	Forfeited		(350	)	50
	Shipbuilding spin-off adjustment		(252	)	47
	Outstanding at December 31, 2011		3,622			$58	1.6
	Granted		1,860		60
	Vested		(1,800	)	55
	Forfeited		(204	)	59
	Outstanding at December 31, 2012		3,478			$61	1.6
	Granted		1,577		64
	Vested		(1,323	)	60
	Forfeited		(312	)	62
	Outstanding at December 31, 2013		3,420			$61	1.5

Unaudited_Selected_Quarterly_D1

Unaudited Selected Quarterly Data (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Unaudited Selected Quarterly Data	'
	2013
	In millions, except per share amounts	1st Qtr		2nd Qtr		3rd Qtr		4th Qtr
	Sales		$6,104		$6,294		$6,106		$6,157
	Operating income	759		806		790		768
	Net earnings	489		488		497		478
	Basic earnings per share	2.07		2.09		2.18		2.17
	Diluted earnings per share	2.03		2.05		2.14		2.12
	Weighted-average common shares outstanding	236.4		234		228.2		220.5
	Weighted-average diluted shares outstanding	241		237.5		232.6		225.2
	2012
	In millions, except per share amounts	1st Qtr		2nd Qtr		3rd Qtr		4th Qtr
	Sales		$6,198		$6,274		$6,270		$6,476
	Operating income	796		774		736		824
	Net earnings	506		480		459		533
	Basic earnings per share	2		1.91		1.86		2.19
	Diluted earnings per share	1.96		1.88		1.82		2.14
	Weighted-average common shares outstanding	253.1		250.8		247.2		243.4
	Weighted-average diluted shares outstanding	258		254.7		252.1		248.9

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details 1) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	segment
Summary of Significant Accounting Policies (Amounts in paragraphs)	'	'	'
Number of reportable segments	4	'	'
Aggregate net changes in contract estimates leading an increase in earnings from continuing operations	$753	$985	$738
Aggregate net changes in contract estimates leading an increase in earnings from continuing operations (in dollars per diluted share)	$2.09	$2.53	$1.70
Research and development expenses	507	520	543
Cash surrender value of life insurance	$287	$271	'
Percentage Threshold Net Actuarial Gains Losses Subject To Amortization	10.00%	'	'
Average future service period of employees	'9 years	'	'
Stock plans, vesting period	'3 years	'	'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details 2) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Millions, unless otherwise specified

Land and land improvements

Land and land improvements

Buildings and improvements

Buildings and improvements

Machinery and other equipment

Machinery and other equipment

Capitalized software costs

Capitalized software costs

Leasehold improvements

Leasehold improvements

Minimum

Maximum

Maximum

Maximum

Maximum

Capitalized software costs

Land and land improvements

Buildings and improvements

Machinery and other equipment

Capitalized software costs

Property, Plant and Equipment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, plant and equipment, at cost

$7,143

$7,033

$373

[1]

$373

[1]

$1,450

$1,421

$4,243

$4,233

$418

$413

$659

[1]

$593

[1]

'

'

'

'

'

Accumulated depreciation

-4,337

-4,146

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, plant, and equipment, net

$2,806

$2,887

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, plant and equipment, estimated useful life

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'40 years

'45 years

'20 years

'5 years

[1]

Land is not a depreciable asset. Leasehold improvements are depreciated over the useful life of the asset if it is shorter than the length of the lease.

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Loss	'	'	'
Unamortized benefit plan costs, net of tax benefit of $1,972 in 2013 and $3,149 in 2012	($3,000)	($4,790)	'
Cumulative translation adjustment	18	4	'
Net unrealized loss on marketable securities and cash flow hedges, net of tax benefit of $1 in 2013 and $0 in 2012	-2	-1	'
Total accumulated other comprehensive loss	-2,984	-4,787	'
Unamortized benefit plan costs - Tax Benefit	-1,972	-3,149	'
Net unrealized gain on marketable securities and cash flow hedges, tax	1	0	'
Unamortized benefit plan, actuarial loss, net of tax	3,300	5,100	'
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax	$319	$204	$91

Earnings_Per_Share_Share_Repur2

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Details) (USD $)

12 Months Ended

24 Months Ended

12 Months Ended

39 Months Ended

0 Months Ended

8 Months Ended

12 Months Ended

Share data in Millions, except Per Share data, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Sep. 30, 2013

15-May-13

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

IRS Private Letter Ruling

June 2010 Share Repurchase Program Original Authorization

June 2010 Share Repurchase Program Original Authorization

June 2010 Share Repurchase Program Original Authorization

June 2010 Share Repurchase Program Original Authorization

May 2013 Share Repurchase Program Original Authorization

May 2013 Share Repurchase Program Original Authorization

May 2013 Share Repurchase Program Original Authorization

May 2013 Share Repurchase Program Original Authorization

May 2013 Share Repurchase Program Original Authorization

Stock Repurchase [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount Authorized

'

'

'

'

'

'

'

$5,350,000,000

$4,000,000,000

$4,000,000,000

'

'

'

Total shares retired

'

'

'

'

'

'

'

83.7

'

8.7

'

'

'

Treasury Stock Acquired, Average Cost Per Share

'

'

'

'

'

'

'

$63.86

'

$103.37

'

'

'

Share repurchase limit due to IRS action

'

'

'

88

'

'

'

'

'

'

'

'

'

Period of share repurchase limit

'

'

'

'2 years

'

'

'

'

'

'

'

'

'

Shares repurchased

27.3

20.9

40.2

67

18.6

20.9

40.2

'

'

'

8.7

0

0

Share Repurchases-Notes to the Table

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount repurchased

'

'

'

'

'

'

'

'

'

895,000,000

895,000,000

'

'

Amount remaining under authorization for share repurchases

'

'

'

'

'

'

'

'

'

$3,100,000,000

$3,100,000,000

'

'

Earnings_Per_Share_Share_Repur3

Earnings Per Share, Share Repurchases and Dividends on Common Stock (Details 2) (USD $)	1 Months Ended				12 Months Ended
	31-May-13	31-May-12	31-May-11	31-May-10	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share, Basic and Diluted [Abstract]	'	'	'	'	'	'	'
Antidilutive stock options	'	'	'	'	0	1,800,000	2,800,000
Dilutive effect of stock options and other stock awards granted	'	'	'	'	4,300,000	4,800,000	4,800,000
Increase (Decrease) in Stock Dividend, Percentage	11.00%	10.00%	6.00%	'	'	'	'
Common stock dividend (in dollars per share)	$0.61	$0.55	$0.50	$0.47	$2.38	$2.15	$1.97

Business_Dispositions_Details_

Business Dispositions (Details 1) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operations Income Statement Disclosures (Table Amounts)	'	'	'
Earnings (loss) from discontinued operations, net of tax	$0	$0	$32
Shipbuilding Segment	'	'	'
Discontinued Operations Income Statement Disclosures (Table Amounts)	'	'	'
Sales	'	'	1,646
Earnings from discontinued operations	'	'	59
Income tax expense	'	'	-28
Earnings, net of tax	'	'	31
Gain on divestitures, net of income tax expense of $1	'	'	1
Earnings (loss) from discontinued operations, net of tax	'	'	32
Discontinued Operations, Gain (Loss) on Disposal of Discontinued Operation, Tax	'	'	$1

Business_Dispositions_Details_1

Business Dispositions (Details 2) (Shipbuilding Segment, USD $)	12 Months Ended
	Dec. 31, 2011
Shipbuilding Segment	'
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'
Pro rata shares	6
Total shares distributed	48,800,000
Cash contribution from shipbuilding business spin-off	$1,400,000,000
Non-deductible transaction costs incurred from spin-off Shipbuilding business	$28,000,000

Segment_Information_Details_1

Segment Information (Details 1) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
									segment
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Number of reportable segments	'	'	'	'	'	'	'	'	4	'	'
Total sales	$6,157	$6,106	$6,294	$6,104	$6,476	$6,270	$6,274	$6,198	$24,661	$25,218	$26,412
Net FAS/CAS pension adjustment	'	'	'	'	'	'	'	'	168	132	400
Unallocated Corporate Expenses	'	'	'	'	'	'	'	'	-119	-168	-166
Other Reconciling Expenses (Income)	'	'	'	'	'	'	'	'	-6	-10	-13
Operating income	768	790	806	759	824	736	774	796	3,123	3,130	3,276
Aerospace Systems	'	'	'	'	'	'	'	'	'	'	'
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total sales	'	'	'	'	'	'	'	'	10,014	9,977	9,964
Operating income	'	'	'	'	'	'	'	'	1,215	1,218	1,217
Electronic Systems	'	'	'	'	'	'	'	'	'	'	'
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total sales	'	'	'	'	'	'	'	'	7,149	6,950	7,372
Operating income	'	'	'	'	'	'	'	'	1,226	1,187	1,070
Information Systems	'	'	'	'	'	'	'	'	'	'	'
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total sales	'	'	'	'	'	'	'	'	6,596	7,356	7,921
Operating income	'	'	'	'	'	'	'	'	633	761	766
Technical Services	'	'	'	'	'	'	'	'	'	'	'
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total sales	'	'	'	'	'	'	'	'	2,843	3,019	3,193
Operating income	'	'	'	'	'	'	'	'	262	268	260
Intersegment eliminations	'	'	'	'	'	'	'	'	'	'	'
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total sales	'	'	'	'	'	'	'	'	-1,941	-2,084	-2,038
Operating income	'	'	'	'	'	'	'	'	-256	-258	-258
Total segment operating income	'	'	'	'	'	'	'	'	'	'	'
Sales and Service Revenues by Segment (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Operating income	'	'	'	'	'	'	'	'	$3,080	$3,176	$3,055

Segment_Information_Details_2

Segment Information (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Aerospace Systems	'	'	'
Intersegment sales and operating income (Table Amounts) [Abstract]	'	'	'
Sales	$149	$171	$134
Operating Income	18	20	18
Electronic Systems	'	'	'
Intersegment sales and operating income (Table Amounts) [Abstract]	'	'	'
Sales	629	607	649
Operating Income	125	110	131
Information Systems	'	'	'
Intersegment sales and operating income (Table Amounts) [Abstract]	'	'	'
Sales	504	682	687
Operating Income	63	78	68
Technical Services	'	'	'
Intersegment sales and operating income (Table Amounts) [Abstract]	'	'	'
Sales	659	624	568
Operating Income	50	50	41
Intersegment Eliminations [Member]	'	'	'
Intersegment sales and operating income (Table Amounts) [Abstract]	'	'	'
Sales	1,941	2,084	2,038
Operating Income	$256	$258	$258

Segment_Information_Details_3

Segment Information (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	$26,381	$26,543
Aerospace Systems	'	'
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	6,490	6,657
Electronic Systems	'	'
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	4,400	4,551
Information Systems	'	'
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	6,887	6,940
Technical Services	'	'
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	1,367	1,313
Total segment	'	'
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	19,144	19,461
Corporate	'	'
Total assets by segment (Table Amounts) [Abstract]	'	'
Total assets	$7,237	$7,082

Segment_Information_Details_4

Segment Information (Details 4) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Additional information by Segment (Table Amounts) [Abstract]	'	'	'
Capital Expenditures	$364	$331	$492
Depreciation and Amortization	495	510	544
Aerospace Systems	'	'	'
Additional information by Segment (Table Amounts) [Abstract]	'	'	'
Capital Expenditures	198	154	184
Depreciation and Amortization	210	196	200
Electronic Systems	'	'	'
Additional information by Segment (Table Amounts) [Abstract]	'	'	'
Capital Expenditures	76	84	121
Depreciation and Amortization	134	139	144
Information Systems	'	'	'
Additional information by Segment (Table Amounts) [Abstract]	'	'	'
Capital Expenditures	27	40	45
Depreciation and Amortization	81	100	121
Technical Services	'	'	'
Additional information by Segment (Table Amounts) [Abstract]	'	'	'
Capital Expenditures	3	3	1
Depreciation and Amortization	4	4	4
Corporate	'	'	'
Additional information by Segment (Table Amounts) [Abstract]	'	'	'
Capital Expenditures	60	50	141
Depreciation and Amortization	$66	$71	$75

Segment_Information_Details_5

Segment Information (Details 5) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Sales	$6,157	$6,106	$6,294	$6,104	$6,476	$6,270	$6,274	$6,198	$24,661	$25,218	$26,412
U.S. Government	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Sales	'	'	'	'	'	'	'	'	21,300	22,300	23,400
Percentage of total sales	'	'	'	'	'	'	'	'	86.00%	88.00%	89.00%
Direct Foreign	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Sales	'	'	'	'	'	'	'	'	$2,500	$2,100	$2,100
Percentage of total sales	'	'	'	'	'	'	'	'	10.00%	8.00%	8.00%

Accounts_Receivable_Net_Detail

Accounts Receivable, Net (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounts Receivable, Net [Abstract]	'	'
Total accounts receivable	$2,754	$2,918
Allowance for doubtful accounts	-69	-60
Total accounts receivable, net	2,685	2,858
U.S. Government Sales	'	'
Accounts Receivable, Net [Abstract]	'	'
Billed	596	783
Unbilled	5,801	5,284
Progress and performance-based payments received	-4,385	-3,907
Total accounts receivable	2,012	2,160
Other Customers	'	'
Accounts Receivable, Net [Abstract]	'	'
Billed	296	325
Unbilled	2,830	1,992
Progress and performance-based payments received	-2,384	-1,559
Total accounts receivable	$742	$758

Inventoried_Costs_Net_Details

Inventoried Costs, Net (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Production costs of contracts in process	$1,342	$1,593
General and administrative expenses	259	262
Inventoried costs	1,601	1,855
Progress and performance-based payments received	-1,005	-1,167
Inventoried costs, net of progress payments	596	688
Product inventory	102	110
Total inventoried costs, net	$698	$798

Income_Taxes_Details_1

Income Taxes (Details 1) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Currently payable	'	'	'
Federal income taxes	$803	$912	$592
Foreign income taxes	28	15	18
Total federal and foreign income taxes currently payable	831	927	610
Deferred federal and foreign income taxes	80	60	387
Total federal and foreign income taxes	$911	$987	$997

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Effective Income Tax Rate Reconciliation, Percent	31.80%	33.30%	32.30%
Income Tax Reconciliation (Table Amounts) [Abstract]	'	'	'
Income tax expense on continuing operations at statutory rate	$1,002	$1,038	$1,079
Manufacturing deduction	-63	-42	-32
Research tax credit	-37	0	-17
Other, net	9	-9	-33
Total federal and foreign income taxes	$911	$987	$997

Income_Taxes_Details_3

Income Taxes (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Unrecognized Tax Benefits Rollforward (Table Amounts) [Abstract]	'	'	'
Unrecognized tax benefits at beginning of the year	$156	$118	$126
Additions based on tax positions related to the current year	56	12	11
Additions for tax positions of prior years	44	28	31
Other, net	-15	-2	-50
Net change in unrecognized tax benefits	85	38	-8
Unrecognized tax benefits at end of the year	$241	$156	$118

Income_Taxes_Details_4

Income Taxes (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Deferred Tax Assets (Table Amounts)	'	'
Retirement benefits	$1,308	$2,710
Provisions for accrued liabilities	646	675
Stock-based compensation	109	146
Other	144	151
Gross deferred tax assets	2,207	3,682
Less valuation allowance	-55	-52
Net deferred tax assets	2,152	3,630
Deferred Tax Liabilities (Table Amounts)	'	'
Goodwill	806	804
Property, plant, and equipment, net	348	376
Contract accounting differences	134	199
Deferred Tax Liabilities, Other	50	135
Gross deferred tax liabilities	1,338	1,514
Total net deferred tax assets	$814	$2,116

Income_Taxes_Details_5

Income Taxes (Details 5) (USD $)	12 Months Ended		0 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013
			Forecast	UNITED KINGDOM
Deferred Tax Assets, Gross [Abstract]	'	'	'	'
Valuation allowance against tax assets	$55	$52	'	'
Effective Income Tax Rate Reconciliation, Percent [Abstract]	'	'	'	'
Federal income tax statutory rate	35.00%	'	'	'
Income Tax Contingency [Line Items]	'	'	'	'
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	'	'	80	'
Income Tax Expense Benefit, Period Increase (Decrease)	'	'	-50	'
Estimated value of uncertain tax positions - accrued interest and penalties	31	'	'	'
Federal and foreign income tax benefits that would impact the rate	190	'	'	'
Operating Loss Carryforwards	'	'	'	$189

Goodwill_and_Other_Purchased_I2

Goodwill and Other Purchased Intangible Assets (Details 1) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Goodwill (Table Amounts)	'	'
Beginning balance	$12,431	$12,374
Businesses acquired, sold and other	7	57
Ending balance	12,438	12,431
Aerospace Systems	'	'
Goodwill (Table Amounts)	'	'
Beginning balance	3,758	3,801
Businesses acquired, sold and other	0	-43
Ending balance	3,758	3,758
Electronic Systems	'	'
Goodwill (Table Amounts)	'	'
Beginning balance	2,410	2,400
Businesses acquired, sold and other	0	10
Ending balance	2,410	2,410
Information Systems	'	'
Goodwill (Table Amounts)	'	'
Beginning balance	5,287	5,248
Businesses acquired, sold and other	7	39
Ending balance	5,294	5,287
Technical Services	'	'
Goodwill (Table Amounts)	'	'
Beginning balance	976	925
Businesses acquired, sold and other	0	51
Ending balance	$976	$976

Goodwill_and_Other_Purchased_I3

Goodwill and Other Purchased Intangible Assets Goodwill and Other Purchased Intangible Assets (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
Gross contract, program and other intangible assets	$1,812	$1,819
Less accumulated amortization	-1,708	-1,682
Net contract, program and other intangible assets	$104	$137

Goodwill_and_Other_Purchased_I4

Goodwill and Other Purchased Intangible Assets Goodwill and Other Purchased Intangible Assets (Details 3) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]	'
2014	$20
2015	18
2016	12
2017	10
2018	$9

Goodwill_and_Other_Purchased_I5

Goodwill and Other Purchased Intangible Assets Goodwill and Other Purchased Intangible Assets (Details 4) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Line Items]	'	'	'
Amortization of Intangible Assets	$26	$36	$37
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	'21 years	'	'
Disclosure of Change of Date for Annual Goodwill Impairment Test	'the fourth quarter of 2013, the company changed the date of its annual goodwill impairment test from November 30 to December 31.	'	'
Aerospace Systems [Member]	'	'	'
Goodwill [Line Items]	'	'	'
Goodwill, Impaired, Accumulated Impairment Loss	$570	'	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details 1) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Financial Assets (Liabilities)	'	'
Debt and Capital Lease Obligations	($5,930)	($3,935)
Carrying Value	'	'
Financial Assets (Liabilities)	'	'
Trading securities	308	259
Available-for-sale	2	3
Derivative Assets (Liabilities), at Fair Value, Net	-2	-1
Long-term debt, including current portion, fair value	-5,930	-3,935
Fair Value	'	'
Financial Assets (Liabilities)	'	'
Trading securities	308	259
Available-for-sale	2	3
Derivative Assets (Liabilities), at Fair Value, Net	-2	-1
Long-term debt, including current portion, fair value	($6,227)	($4,834)

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Marketable Securities	'	'
Marketable Securities, Noncurrent	$310	$261
Derivative Instruments and Hedging Activities	'	'
Derivatives, notional amount	161	164
Cash Flow Hedges	'	'
Derivative Instruments and Hedging Activities	'	'
Derivatives, notional amount	$77	$110

LongTerm_Debt_Details_1

Long-Term Debt (Details 1) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Long-Term Debt (Table Amounts) [Abstract]	'	'
Long-term debt	$5,930	'
Capital leases	35	32
Other long-term debt	245	253
Debt and Capital Lease Obligations	5,930	3,935
Less: current portion	2	5
Long-term debt, net of current portion	5,928	3,930
2014	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	3.70%	'
Long-term debt	0	350
2015	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	1.85%	'
Long-term debt	0	500
2016	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	7.75%	'
Long-term debt	107	107
2018	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Long-term debt	1,050	200
2019	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	5.05%	'
Long-term debt	500	500
2021	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	3.50%	'
Long-term debt	700	700
2023	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	3.25%	'
Long-term debt	1,050	0
2026	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Long-term debt	527	527
2031	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	7.75%	'
Long-term debt	466	466
2040	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	5.05%	'
Long-term debt	300	300
2043	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	4.75%	'
Long-term debt	$950	$0
Minimum | 2018	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	1.75%	'
Minimum | 2026	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	7.75%	'
Maximum | 2018	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	6.75%	'
Maximum | 2026	'	'
Long-Term Debt (Table Amounts) [Abstract]	'	'
Debt Instrument, Interest Rate, Stated Percentage	7.88%	'

LongTerm_Debt_Details_2

Long-Term Debt (Details 2) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Maturities of Long-term Debt [Abstract]	'
2014	$2
2015	3
2016	110
2017	3
2018	1,053
Thereafter	4,757
Total principal payments	5,928
Unamortized premium on long-term debt, net of discount	2
Total long-term debt	$5,930

LongTerm_Debt_Details_3

Long-Term Debt (Details 3) (Revolving Credit Facility [Member], USD $)	5 Months Ended	24 Months Ended		12 Months Ended
	Dec. 31, 2013	Aug. 31, 2013	Sep. 08, 2011	Sep. 04, 2013	Sep. 04, 2012
	Five Year Term [Member]	Five Year Term [Member]	Five Year Term [Member]	364 Day [Member]	364 Day [Member]
Debt Instrument [Line Items]	'	'	'	'	'
Debt Instrument, Term	'5 years	'5 years	'	'364 days	'
Line of Credit Facility, Maximum Borrowing Capacity	'	$1,775,000,000	$1,500,000,000	'	$500,000,000
Credit Facility, Covenant Terms, Maximum Debt to Capitalization Ratio	65.00%	'	'	'	'
Line of Credit Facility, Amount Outstanding	$0	'	'	'	'

LongTerm_Debt_Details_4

Long-Term Debt (Details 4) (USD $)	12 Months Ended			1 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	31-May-13	31-May-13	31-May-13	31-May-13	31-May-13	31-May-13
				Senior Notes [Member]	June 2018 Maturity [Member]	August 2023 Maturity [Member]	June 2043 Maturity [Member]	August 2014 Maturity [Member]	November 2015 Maturity [Member]
					Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]	Senior Notes [Member]
					Five Year Term [Member]	Ten Year Term [Member]	Thirty Year Term [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'
Debt Instrument, Face Amount	'	'	'	$2,850	$850	$1,050	$950	'	'
Debt Instrument, Maturity Date	'	'	'	'	1-Jun-18	1-Aug-23	1-Jun-43	1-Aug-14	15-Nov-15
Debt Instrument, Interest Rate, Stated Percentage	'	'	'	'	1.75%	3.25%	4.75%	3.70%	1.85%
Payments of long-term debt	877	0	768	'	'	'	'	350	500
Gains (Losses) on Extinguishment of Debt	'	'	'	($30)	'	'	'	'	'

Investigations_Claims_and_Liti1

Investigations, Claims and Litigation Investigations, Claims and Litigation (Details)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2007

Dec. 31, 2013

4-May-12

4-May-12

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Aug. 08, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Millions, unless otherwise specified

USD ($)

USD ($)

United States Postal Service [Member]

United States Postal Service [Member]

United States Postal Service [Member]

United States Postal Service [Member]

Solystic Matter [Member]

Solystic Matter [Member]

United States Postal Service [Member]

Solystic Matter [Member]

Solystic Matter [Member]

Solystic Matter [Member]

Initial Claim [Member]

Initial Claim [Member]

Incremental claim [Member]

Incremental claim [Member]

USD ($)

USD ($)

Unpaid Portions of Contract Price and Direct Costs Incurred [Member]

Acts and Omissions with Adverse Affects on Performance and Obligations [Member]

USD ($)

EUR (€)

False Claims Act [Member]

Defendant

USD ($)

BRL

Solystic Matter [Member]

Solystic Matter [Member]

Solystic Matter [Member]

Solystic Matter [Member]

USD ($)

USD ($)

Threatened Litigation [Member]

USD ($)

BRL

USD ($)

BRL

USD ($)

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contract award

'

'

$875

'

'

'

'

'

'

'

'

'

'

'

'

'

Receivables, unpaid long-term contracts

2,685

2,858

'

'

63

'

'

'

'

'

'

'

'

'

'

'

Gain Contingency, Unrecorded Amount

'

'

'

'

'

115

43

31

'

'

'

'

'

'

'

'

Claims asserted, range of possible loss, maximum

'

'

'

410

'

'

'

'

'

'

'

'

'

'

'

'

Loss Contingency, Estimate of Possible Loss

'

'

'

'

'

'

'

'

$179

'

$47

111

$38

89

$9

22

Loss Contingency, Number of Defendants

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

'

Commitments_and_Contingencies_1

Commitments and Contingencies (Details 1) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Environmental Commitments and Contingencies (Amounts in Paragraphs)	'
Amounts accrued for probable environmental remediation costs	$338
Financial Arrangements (Amounts in Paragraph)	'
Unused standby letters of credit and bank guarantees	345
Surety Bond Outstanding	157
Other Current Liabilities [Member]	'
Environmental Commitments and Contingencies (Amounts in Paragraphs)	'
Amounts accrued for probable environmental remediation costs	100
Other Noncurrent Liabilities [Member]	'
Environmental Commitments and Contingencies (Amounts in Paragraphs)	'
Amounts accrued for probable environmental remediation costs	238
Inventory for Long Term Contracts or Programs, Gross [Member]	'
Environmental Commitments and Contingencies (Amounts in Paragraphs)	'
Amounts accrued for probable environmental remediation costs	51
Other Noncurrent Assets [Member]	'
Environmental Commitments and Contingencies (Amounts in Paragraphs)	'
Amounts accrued for probable environmental remediation costs	128
Environmental Issue [Member]	'
Environmental Commitments and Contingencies (Amounts in Paragraphs)	'
Low-end of the range of reasonably possible future costs for environmental remediation sites	319
High-end of the range of reasonably possible future costs for environmental remediation sites	$806

Commitments_and_Contingencies_2

Commitments and Contingencies (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]	'	'	'
Standby Unused Letters Of Credit and bank guarantees	$345	'	'
Rent expense for operating leases, excluding discontinued operations	298	347	420
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'	'	'
2014	277	'	'
2015	232	'	'
2016	176	'	'
2017	107	'	'
2018	61	'	'
Thereafter	90	'	'
Total Minimum Lease Payments	$943	'	'

Retirement_Benefits_Details_1

Retirement Benefits (Details 1) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits	'	'	'
Components of Net Periodic Benefit Cost (Table Amounts) [Abstract]	'	'	'
Service cost	$516	$522	$520
Interest cost	1,117	1,184	1,223
Expected return on plan assets	-1,809	-1,708	-1,690
Amortization of:	'	'	'
Prior service (credit) cost	-58	-58	23
Net loss from previous years	608	427	162
Other	0	7	0
Net periodic benefit cost	374	374	238
Medical and Life Benefits	'	'	'
Components of Net Periodic Benefit Cost (Table Amounts) [Abstract]	'	'	'
Service cost	36	34	32
Interest cost	96	109	114
Expected return on plan assets	-75	-68	-62
Amortization of:	'	'	'
Prior service (credit) cost	-51	-51	-51
Net loss from previous years	30	21	17
Other	0	0	-6
Net periodic benefit cost	$36	$45	$44

Retirement_Benefits_Details_2

Retirement Benefits (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Changes in Unamortized Benefit plan Costs (Table Amounts) [Abstract]	'	'	'
Change in net actuarial loss	($2,438)	$2,504	$2,825
Change in prior service cost	'	-2	-602
Amortization of:	'	'	'
Prior service (cost) credit	109	109	28
Net loss from previous years	-638	-448	-179
Tax expense (benefit) related to above items	1,177	-860	-823
Change in unamortized benefit plan costs	-1,790	1,303	1,249
Pension Benefits	'	'	'
Changes in Unamortized Benefit plan Costs (Table Amounts) [Abstract]	'	'	'
Change in net actuarial loss	-2,158	2,353	2,687
Change in prior service cost	'	-2	-608
Amortization of:	'	'	'
Prior service (cost) credit	58	58	-23
Net loss from previous years	-608	-427	-162
Tax expense (benefit) related to above items	1,075	-788	-752
Change in unamortized benefit plan costs	-1,633	1,194	1,142
Medical and Life Benefits	'	'	'
Changes in Unamortized Benefit plan Costs (Table Amounts) [Abstract]	'	'	'
Change in net actuarial loss	-280	151	138
Change in prior service cost	'	0	6
Amortization of:	'	'	'
Prior service (cost) credit	51	51	51
Net loss from previous years	-30	-21	-17
Tax expense (benefit) related to above items	102	-72	-71
Change in unamortized benefit plan costs	($157)	$109	$107

Retirement_Benefits_Details_3

Retirement Benefits (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Amounts recorded in accumulated other comprehensive loss (Table Amounts)	'	'
Unamortized benefit plan costs	$3,000	$4,790
Pension Benefits	'	'
Amounts recorded in accumulated other comprehensive loss (Table Amounts)	'	'
Net actuarial loss	-5,291	-8,057
Prior service credit	423	481
Income tax benefits related to above items	1,928	3,003
Unamortized benefit plan costs	-2,940	-4,573
Medical and Life Benefits	'	'
Amounts recorded in accumulated other comprehensive loss (Table Amounts)	'	'
Net actuarial loss	-151	-461
Prior service credit	47	98
Income tax benefits related to above items	44	146
Unamortized benefit plan costs	($60)	($217)

Retirement_Benefits_Details_4

Retirement Benefits (Details 4) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Change in plan assets	'	'	'
Fair value of plan assets at end of year	$25,273	$24,024	'
Amounts Recognized on the Balance Sheet	'	'	'
Non-current liability	-2,954	-6,085	'
Pension Benefits	'	'	'
Change in projected benefit obligation	'	'	'
Projected benefit obligation at beginning of year	27,746	24,129	'
Service cost	516	522	520
Interest cost	1,117	1,184	1,223
Plan participants’ contributions	12	12	'
Plan amendments	0	-1	640
Actuarial (gain) loss	-2,063	3,114	'
Benefits paid	-1,365	-1,220	'
Other	9	6	'
Projected benefit obligation at end of year	25,972	27,746	24,129
Change in plan assets	'	'	'
Fair value of plan assets at beginning of year	22,962	21,340	'
Gain on plan assets	1,907	2,463	'
Employer contributions	579	366	'
Plan participants’ contributions	12	12	'
Benefits paid	-1,365	-1,220	'
Other	3	1	'
Fair value of plan assets at end of year	24,098	22,962	21,340
Funded status	-1,874	-4,784	'
Amounts Recognized on the Balance Sheet	'	'	'
Non-current assets	117	7	'
Current liability	-122	-111	'
Non-current liability	-1,869	-4,680	'
Medical and Life Benefits	'	'	'
Change in projected benefit obligation	'	'	'
Projected benefit obligation at beginning of year	2,448	2,235	'
Service cost	36	34	32
Interest cost	96	109	114
Plan participants’ contributions	77	81	'
Plan amendments	0	0	'
Actuarial (gain) loss	-219	202	'
Benefits paid	-227	-227	'
Other	13	14	'
Projected benefit obligation at end of year	2,224	2,448	2,235
Change in plan assets	'	'	'
Fair value of plan assets at beginning of year	1,062	946	'
Gain on plan assets	137	119	'
Employer contributions	114	129	'
Plan participants’ contributions	77	81	'
Benefits paid	-227	-227	'
Other	12	14	'
Fair value of plan assets at end of year	1,175	1,062	946
Funded status	-1,049	-1,386	'
Amounts Recognized on the Balance Sheet	'	'	'
Non-current assets	72	49	'
Current liability	-36	-30	'
Non-current liability	($1,085)	($1,405)	'

Retirement_Benefits_Details_5

Retirement Benefits (Details 5) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Pension Benefits	'
Amounts expected to be recognized in 2014 net periodic benefit cost (Table Amounts)	'
Net actuarial loss	$327
Prior service credit	-59
Medical and Life Benefits	'
Amounts expected to be recognized in 2014 net periodic benefit cost (Table Amounts)	'
Net actuarial loss	9
Prior service credit	($30)

Retirement_Benefits_Details_6

Retirement Benefits (Details 6) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Pension plans with accumulated benefit obligations in excess of fair value of plan assets (Table Amounts) [Abstract]	'	'
Projected benefit obligation	$24,129	$27,645
Accumulated benefit obligation	23,830	27,146
Fair value of plan assets	$22,138	$22,853

Retirement_Benefits_Details_7

Retirement Benefits (Details 7)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Pension Benefits	'	'
Assumptions Used to Determine Benefit Obligation	'	'
Discount rate	4.99%	4.12%
Initial cash balance crediting rate assumed for the next year	3.90%	3.00%
Rate to which the cash balance crediting rate is assumed to increase (the ultimate rate)	4.70%	4.25%
Year that the cash balance crediting rate reaches the ultimate rate	'2019	'2018
Rate of compensation increase	3.00%	2.75%
Assumptions Used to Determine Benefit Cost	'	'
Discount rate	4.12%	5.03%
Initial cash balance crediting rate assumed for the next year	3.00%	3.25%
Rate to which the cash balance crediting rate is assumed to increase (the ultimate rate)	4.25%	4.50%
Year that the cash balance crediting rate reaches the ultimate rate	'2018	'2017
Expected long-term return on plan assets	8.00%	8.25%
Rate of compensation increase	2.75%	2.75%
Medical and Life Benefits	'	'
Assumptions Used to Determine Benefit Obligation	'	'
Discount rate	4.90%	4.02%
Assumptions Used to Determine Benefit Cost	'	'
Discount rate	4.02%	5.02%
Expected long-term return on plan assets	7.33%	7.44%
Benefit Obligation [Member] | Medical and Life Benefits	'	'
Defined Benefit Plan Disclosure (Table Amounts)	'	'
Initial health care cost trend rate assumed for the next year	6.50%	7.00%
Rate to which the health care cost trend rate is assumed to decline (the ultimate trend rate)	5.00%	5.00%
Year that the health care cost trend rate reaches the ultimate trend rate	'2017	'2017
Postretirement Benefit Costs [Member] | Medical and Life Benefits	'	'
Defined Benefit Plan Disclosure (Table Amounts)	'	'
Initial health care cost trend rate assumed for the next year	7.00%	7.50%
Rate to which the health care cost trend rate is assumed to decline (the ultimate trend rate)	5.00%	5.00%
Year that the health care cost trend rate reaches the ultimate trend rate	'2017	'2017

Retirement_Benefits_Details_8

Retirement Benefits (Details 8) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates	'
Effect of One Percentage Point Decrease on Service and Interest Cost Components	($5)
Effect of One Percentage Point Increase on Service and Interest Cost Components	4
Effect of One Percentage Point Decrease on Post-retirement Benefit Liability	-81
Effect of One Percentage Point Increase on Post-retirement Benefit Liability	$67

Retirement_Benefits_Details_9

Retirement Benefits (Details 9)	12 Months Ended
	Dec. 31, 2013
Minimum | Domestic Equity Securities	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, minimum	10.00%
Minimum | International equities	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, minimum	5.00%
Minimum | Fixed Income Securities	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, minimum	30.00%
Minimum | Alternative Investments	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, minimum	15.00%
Maximum | Domestic Equity Securities	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, maximum	30.00%
Maximum | International equities	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, maximum	25.00%
Maximum | Fixed Income Securities	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, maximum	50.00%
Maximum | Alternative Investments	'
Plan Asset Allocation Ranges (Table Amounts) [Abstract]	'
Asset allocation ranges, maximum	30.00%

Retirement_Benefits_Details_10

Retirement Benefits (Details 10) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	$25,273	$24,024	'
Cash & cash equivalents	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	1,499	1,840	'
Domestic equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	4,452	3,977	'
International equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	4,214	4,019	'
U.S. Treasuries	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	1,602	1,780	'
U.S. Government Agency	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	974	968	'
Non-U.S. Government	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	422	401	'
Corporate debt	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	4,744	4,123	'
Asset backed	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	549	532	'
High yield debt	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	923	1,167	'
Bank loans	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	185	223	'
Hedge funds	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	821	758	'
Private equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	2,075	1,980	'
Real estate	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	2,767	2,256	'
Other	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	46	0	'
Level 1	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	6,694	5,444	'
Level 1 | Cash & cash equivalents	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	32	92	'
Level 1 | Domestic equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	4,163	3,657	'
Level 1 | International equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	2,473	1,700	'
Level 1 | Other	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	26	-5	'
Level 2	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	12,909	13,552	'
Level 2 | Cash & cash equivalents	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	1,467	1,748	'
Level 2 | Domestic equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	287	318	'
Level 2 | International equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	1,741	2,319	'
Level 2 | U.S. Treasuries	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	1,602	1,780	'
Level 2 | U.S. Government Agency	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	974	968	'
Level 2 | Non-U.S. Government	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	422	401	'
Level 2 | Corporate debt	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	4,744	4,123	'
Level 2 | Asset backed	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	545	528	'
Level 2 | High yield debt	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	922	1,139	'
Level 2 | Bank loans	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	185	223	'
Level 2 | Other	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	20	5	'
Level 3	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	5,670	5,028	5,338
Level 3 | Domestic equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	2	2	'
Level 3 | Asset backed	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	4	4	'
Level 3 | High yield debt	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	1	28	'
Level 3 | Hedge funds	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	821	758	'
Level 3 | Private equities	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	2,075	1,980	2,098
Level 3 | Real estate	'	'	'
Plan Assets by Fair Value Measurement Input (Table Amounts) [Abstract]	'	'	'
Fair value of plan assets at end of year	$2,767	$2,256	$1,788

Retirement_Benefits_Details_11

Retirement Benefits (Details 11) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Actual return on plan assets:	'	'
Fair value of plan assets at end of year	$25,273	$24,024
Level 3	'	'
Changes in Fair Value of Plan Assets, Significant Unobservable Inputs (Table Amounts) [Abstract]	'	'
Fair value of plan assets at beginning of year	5,028	5,338
Actual return on plan assets:	'	'
Unrealized gains (losses), net	358	-26
Realized gains (losses), net	43	42
Purchases	1,629	1,105
Sales	-1,388	-1,431
Fair value of plan assets at end of year	5,670	5,028
High yield debt and Hedge funds | Level 3	'	'
Changes in Fair Value of Plan Assets, Significant Unobservable Inputs (Table Amounts) [Abstract]	'	'
Fair value of plan assets at beginning of year	786	1,446
Actual return on plan assets:	'	'
Unrealized gains (losses), net	-16	23
Realized gains (losses), net	43	47
Purchases	200	0
Sales	-191	-730
Fair value of plan assets at end of year	822	786
Private equities	'	'
Actual return on plan assets:	'	'
Fair value of plan assets at end of year	2,075	1,980
Private equities | Level 3	'	'
Changes in Fair Value of Plan Assets, Significant Unobservable Inputs (Table Amounts) [Abstract]	'	'
Fair value of plan assets at beginning of year	1,980	2,098
Actual return on plan assets:	'	'
Unrealized gains (losses), net	112	-122
Realized gains (losses), net	0	0
Purchases	666	259
Sales	-683	-255
Fair value of plan assets at end of year	2,075	1,980
Real estate	'	'
Actual return on plan assets:	'	'
Fair value of plan assets at end of year	2,767	2,256
Real estate | Level 3	'	'
Changes in Fair Value of Plan Assets, Significant Unobservable Inputs (Table Amounts) [Abstract]	'	'
Fair value of plan assets at beginning of year	2,256	1,788
Actual return on plan assets:	'	'
Unrealized gains (losses), net	262	68
Realized gains (losses), net	0	0
Purchases	763	846
Sales	-514	-446
Fair value of plan assets at end of year	2,767	2,256
Other Investments | Level 3	'	'
Changes in Fair Value of Plan Assets, Significant Unobservable Inputs (Table Amounts) [Abstract]	'	'
Fair value of plan assets at beginning of year	6	6
Actual return on plan assets:	'	'
Unrealized gains (losses), net	0	5
Realized gains (losses), net	0	-5
Purchases	0	0
Sales	0	0
Fair value of plan assets at end of year	$6	$6

Retirement_Benefits_Details_12

Retirement Benefits (Details 12) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Pension Benefits	'
Estimated Benefit Payments (Table Amounts) [Abstract]	'
2014	$1,341
2015	1,394
2016	1,446
2017	1,500
2018	1,557
2019 through 2023	8,556
Medical and Life Benefits	'
Estimated Benefit Payments (Table Amounts) [Abstract]	'
2014	148
2015	154
2016	160
2017	165
2018	169
2019 through 2023	$860

Retirement_Benefits_Details_13

Retirement Benefits (Details 13) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	plan
	partnership
Defined Contribution Plans Disclosure (Amounts in paragraphs)	'	'	'
Maximum percentage of employee compensation eligible for cash matching of employee contributions	4.00%	'	'
Defined Contribution Plan, Employer Discretionary Contribution Amount	$285	$293	$297
Pension and post-retirement benefits disclosures (Amounts in paragraphs)	'	'	'
Percentage current pension retirees participating in medical plans	62.00%	'	'
Accumulated net after-tax actuarial losses	3,300	5,100	'
Number of domestic unfunded non-qualified pension and postretirement plans	11	'	'
Accumulated benefit obligation for all defined benefit pension plans	25,700	27,200	'
Information About Plan Assets (Amounts in paragraphs) [Abstract]	'	'	'
Maximum percentage of funds permitted to be invested in trust accounts	5.00%	'	'
Number of real estate and private equity partnerships	163	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	899	810	'
Average investment term, alternative investments	'10 years	'	'
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Investment Redemption, Frequency	'quarterly	'	'
Notice period for alternative investments redemptions, days	'90 days	'	'
Pension Benefits	'	'	'
Pension and post-retirement benefits disclosures (Amounts in paragraphs)	'	'	'
Discount Rate	4.99%	4.12%	'
Plan amendments	0	-1	640
Information About Plan Assets (Amounts in paragraphs) [Abstract]	'	'	'
Employer contributions	579	366	'
Pension Benefits | Employer Contributions - Required	'	'	'
Information About Plan Assets (Amounts in paragraphs) [Abstract]	'	'	'
Expected 2014 employer contributions	74	'	'
Pension Benefits | Voluntary Contributions [Member]	'	'	'
Information About Plan Assets (Amounts in paragraphs) [Abstract]	'	'	'
Employer contributions	500	300	'
Medical and Life Benefits	'	'	'
Pension and post-retirement benefits disclosures (Amounts in paragraphs)	'	'	'
Discount Rate	4.90%	4.02%	'
Plan amendments	0	0	'
Information About Plan Assets (Amounts in paragraphs) [Abstract]	'	'	'
Employer contributions	114	129	'
Medical and Life Benefits | Employer Contributions - Required	'	'	'
Information About Plan Assets (Amounts in paragraphs) [Abstract]	'	'	'
Expected 2014 employer contributions	$90	'	'

Stock_Compensation_Plans_and_O2

Stock Compensation Plans and Other Compensation Arrangements (Detail 1) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation by Share-based Payment Award	'	'	'
Stock-based compensation expense	$144	$183	$139
Tax benefits from stock-based compensation expense	41	45	55
Stock options	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock-based compensation expense	4	10	14
Stock awards	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock-based compensation expense	140	173	125
Stock options, exercised	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Tax benefits from stock-based compensation expense	25	26	18
Stock awards, issued	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Tax benefits from stock-based compensation expense	$16	$19	$37

Stock_Compensation_Plans_and_O3

Stock Compensation Plans and Other Compensation Arrangements (Details 2) (USD $)	12 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Stock Option Activity (Table)	'	'
Shares under option - outstanding at period start	6,271	'
Shares under option - exercised	-4,522	'
Shares under option - cancelled and forfeited	-29	'
Shares under option - outstanding at period end	1,720	6,271
Stock Options, Weighted Average Exercise Price (Table)	'	'
Weighted-average exercise price - outstanding at period start	$58	'
Weighted-average exercise price - exercised	$59	'
Weighted-average exercise price - cancelled and forfeited	$60	'
Weighted-average exercise price - outstanding at period end	$56	$58
Exercisable at Period End [Table]	'	'
Shares under option - exercisable at period end	1,343	'
Weighted-average exercise price - exercisable at period end	$55	'
Weighted-average remaining contractual term - exercisable at period end	'2 years 2 months	'
Aggregate intrinsic value - exercisable at period end	$80	'
Stock Options, Vested and Expected to Vest at Period End [Table]	'	'
Shares under option - vested and expected to vest in the future at period end	1,716	'
Weighted-average exercise price - vested and expected to vest in the future at period end	$56	'
Weighted-average remaining contractual term - vested and expected to vest in the future at period end	'2 years 7 months	'
Aggregate intrinsic value - vested and expected to vest in the future at period end	101	'
Weighted-average remaining contractual term - outstanding at period end	'2 years 7 months	'2 years 11 months
Aggregate intrinsic value - outstanding at period end	$101	$66

Stock_Compensation_Plans_and_O4

Stock Compensation Plans and Other Compensation Arrangements (Detail 3) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation by Share-based Payment Award	'	'	'	'
Stock awards, outstanding, weighted average remaining contractual terms	'1 year 6 months	'1 year 7 months	'1 year 7 months	'1 year 6 months
Stock Award Activity (Table)	'	'	'	'
Stock awards - outstanding at period start	3,478	3,622	4,300	'
Stock awards - granted	1,577	1,860	1,748	'
Stock awards - vested	-1,323	-1,800	-1,824	'
Stock awards - forfeited	-312	-204	-350	'
Stock awards - Shipbuilding spin-off adjustments	'	'	-252	'
Stock awards - outstanding at period end	3,420	3,478	3,622	4,300
Stock Awards, Weighted Average Grant Date Fair Value [Table]	'	'	'	'
Weighted-average grant date fair value - outstanding at period start	$61	$58	$53	'
Weighted-average grant date fair value - granted	$64	$60	$63	'
Weighted-average grant date fair value - vested	$60	$55	$42	'
Weighted-average grant date fair value - forfeited	$62	$59	$50	'
Weighted-average grant date fair value - Shipbuilding spin-off adjustments	'	'	$47	'
Weighted-average grant date fair value - outstanding at period end	$61	$61	$58	$53

Stock_Compensation_Plans_and_O5

Stock Compensation Plans and Other Compensation Arrangements (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation by Share-based Payment Award	'	'	'
Unrecognized compensation expense, non-vested awards	$102,000,000	'	'
Weighted-average period for unrecognized compensation expense to be charged to expense	'1 year 3 months	'	'
Total intrinsic value of stock options exercised	118,000,000	97,000,000	46,000,000
Stock plans, vesting period	'3 years	'	'
Stock issued, settlement of fully vested stock awards, shares	3,400,000	2,800,000	1,400,000
Stock issued, settlement of fully vested stock awards, fair value at issuance	226,000,000	172,000,000	87,000,000
Stock issued, settlement of fully vested stock awards, fair value grant date	105,000,000	75,000,000	101,000,000
Stock awards - granted	1,577,000	1,860,000	1,748,000
Common stock expected to be issued next year	2,500,000	'	'
Grant date fair value of common stock expected to be issued next year	80,000,000	'	'
Stock Option Plan Granted Prior To 2008	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock plans, vesting period	'4 years	'	'
Award vesting rights, percentage	25.00%	'	'
Award expiration period	'10 years	'	'
2011 Long-Term Incentive Stock Plan	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Number of shares authorized	39,100,000	'	'
Number of additional shares authorized, originally under 2001 LTISP	6,900,000	'	'
Share limit for every one share issued in connection with awards	4.5	'	'
Available for future grant	28,000,000	'	'
1995 Stock Plan for Non-Employee Directors	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Award expiration period	'10 years	'	'
Number of non-employee directors with unexercised options	3	'	'
Grants During 2010 and After [Member]	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Restricted stock forfeiture percentage if objectives not met	100.00%	'	'
Maximum percentage of original grant that can be earned if financial metrics are met or exceeded	200.00%	'	'
Minimum	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Required service period under 2011 Plan and 1993 SPND (years)	'5 years	'	'
Employee Stock Option [Member]	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock options, issued	0	0	'
Restricted Performance Stock Rights	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock awards - granted	1,100,000	'	'
Cash Units and Cash Performance Units [Member]	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Unrecognized compensation expense, non-vested awards	108,000,000	'	'
Cash Units and Cash Performance Units [Member] | Minimum	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Unrecognized compensation expense, non-vested awards	32,000,000	'	'
Cash Units and Cash Performance Units [Member] | Maximum	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Unrecognized compensation expense, non-vested awards	173,000,000	'	'
Restricted Stock Units (RSUs) [Member]	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock awards - granted	500,000	'	'
Stock Option Plan Granted After 2008	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Stock plans, vesting period	'3 years	'	'
Award vesting rights, percentage	33.00%	'	'
Award expiration period	'7 years	'	'
Restricted Stock Rights and Restricted Performance Stock Rights	'	'	'
Share-based Compensation by Share-based Payment Award	'	'	'
Unrecognized compensation expense, non-vested awards	$101,000,000	'	'

Unaudited_Selected_Quarterly_D2

Unaudited Selected Quarterly Data (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Unaudited Selected Quarterly Data (Table Amounts) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Sales	$6,157	$6,106	$6,294	$6,104	$6,476	$6,270	$6,274	$6,198	$24,661	$25,218	$26,412
Operating income	768	790	806	759	824	736	774	796	3,123	3,130	3,276
Net earnings	478	497	488	489	533	459	480	506	1,952	1,978	2,118
Basic earnings per share (in dollars per share)	$2.17	$2.18	$2.09	$2.07	$2.19	$1.86	$1.91	$2	$8.50	$7.96	$7.65
Diluted earnings per share (in dollars per share)	$2.12	$2.14	$2.05	$2.03	$2.14	$1.82	$1.88	$1.96	$8.35	$7.81	$7.52
Weighted-average common shares outstanding	220.5	228.2	234	236.4	243.4	247.2	250.8	253.1	229.6	248.6	276.8
Weighted-average diluted shares outstanding	225.2	232.6	237.5	241	248.9	252.1	254.7	258	233.9	253.4	281.6
Unaudited Selected Quarterly Data (Amounts in Paragraphs)	'	'	'	'	'	'	'	'	'	'	'
Number of common shares repurchased	6.6	'	'	'	7.3	'	'	'	'	'	'
Amount paid for common stock repurchased	$699	'	'	'	$487	'	'	'	'	'	'