Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Current assets:
Cash and equivalents	$ 3,296		$ 2,649		$ 2,613	$ 2,263
Accounts receivable	4,204		4,429
Contracts in process	4,964		5,168
Inventories
Work in process	1,518		1,202
Raw materials	1,109		1,031
Finished goods	69		77
Pre-owned aircraft	80		0
Other current assets	504		812
Total current assets	15,744		15,368
Noncurrent assets:
Property, plant and equipment	7,003	[1]	6,518	[1]
Accumulated depreciation of PP&E	(3,600)		(3,234)
Intangible assets	2,915		3,219
Accumulated amortization of intangible assets	(1,532)		(1,406)
Goodwill	12,048		13,576		12,649
Other assets	1,731		842
Investment in subsidiaries	0		0
Total noncurrent assets	18,565		19,515
Total assets	34,309		34,883		32,545
Current liabilities:
Short-term debt	1		23
Customer advances and deposits	6,042		5,011
Other current liabilities	5,578		6,134
Total current liabilities	11,620		11,145
Noncurrent liabilities:
Long-term debt	3,908		3,907
Other liabilities	7,391		6,599
Total noncurrent liabilities	11,299		10,506
Intercompany	0		0
Shareholders’ equity:
Common stock	482		482
Other shareholders' equity	10,908		12,750
Total shareholders’ equity	11,390		13,232		13,316	12,423
Total liabilities and shareholders’ equity	34,309		34,883
Parent
Current assets:
Cash and equivalents	2,248		1,530		1,608	1,406
Accounts receivable	0		0
Contracts in process	439		292
Inventories
Work in process	0		0
Raw materials	0		0
Finished goods	0		0
Pre-owned aircraft	0
Other current assets	45		320
Total current assets	2,732		2,142
Noncurrent assets:
Property, plant and equipment	155		153
Accumulated depreciation of PP&E	(56)		(49)
Intangible assets	0		0
Accumulated amortization of intangible assets	0		0
Goodwill	0		0
Other assets	700		10
Investment in subsidiaries	33,324		33,450
Total noncurrent assets	34,123		33,564
Total assets	36,855		35,706
Current liabilities:
Customer advances and deposits	0		0
Other current liabilities	394		537
Total current liabilities	394		537
Noncurrent liabilities:
Long-term debt	3,881		3,895
Other liabilities	4,121		3,443
Total noncurrent liabilities	8,002		7,338
Intercompany	17,069		14,599
Shareholders’ equity:
Common stock	482		482
Other shareholders' equity	10,908		12,750
Total shareholders’ equity	11,390		13,232
Total liabilities and shareholders’ equity	36,855		35,706
Guarantors on a Combined Basis
Current assets:
Cash and equivalents	0		0		0	0
Accounts receivable	1,254		1,659
Contracts in process	3,199		3,182
Inventories
Work in process	1,507		1,168
Raw materials	1,020		898
Finished goods	32		36
Pre-owned aircraft	80
Other current assets	249		247
Total current assets	7,341		7,190
Noncurrent assets:
Property, plant and equipment	5,556		5,181
Accumulated depreciation of PP&E	(2,850)		(2,604)
Intangible assets	1,693		1,767
Accumulated amortization of intangible assets	(1,068)		(976)
Goodwill	7,661		9,287
Other assets	738		629
Investment in subsidiaries	0		0
Total noncurrent assets	11,730		13,284
Total assets	19,071		20,474
Current liabilities:
Customer advances and deposits	3,052		2,483
Other current liabilities	3,743		3,750
Total current liabilities	6,795		6,233
Noncurrent liabilities:
Long-term debt	27		9
Other liabilities	2,704		2,541
Total noncurrent liabilities	2,731		2,550
Intercompany	(17,388)		(15,240)
Shareholders’ equity:
Common stock	6		6
Other shareholders' equity	26,927		26,925
Total shareholders’ equity	26,933		26,931
Total liabilities and shareholders’ equity	19,071		20,474
Other Subsidiaries on a Combined Basis
Current assets:
Cash and equivalents	1,048		1,119		1,005	857
Accounts receivable	2,950		2,770
Contracts in process	1,326		1,694
Inventories
Work in process	11		34
Raw materials	89		133
Finished goods	37		41
Pre-owned aircraft	0
Other current assets	210		245
Total current assets	5,671		6,036
Noncurrent assets:
Property, plant and equipment	1,292		1,184
Accumulated depreciation of PP&E	(694)		(581)
Intangible assets	1,222		1,452
Accumulated amortization of intangible assets	(464)		(430)
Goodwill	4,387		4,289
Other assets	328		203
Investment in subsidiaries	0		0
Total noncurrent assets	6,071		6,117
Total assets	11,742		12,153
Current liabilities:
Customer advances and deposits	2,990		2,528
Other current liabilities	1,441		1,847
Total current liabilities	4,431		4,375
Noncurrent liabilities:
Long-term debt	0		3
Other liabilities	566		615
Total noncurrent liabilities	566		618
Intercompany	319		641
Shareholders’ equity:
Common stock	44		44
Other shareholders' equity	6,382		6,475
Total shareholders’ equity	6,426		6,519
Total liabilities and shareholders’ equity	11,742		12,153
Consolidating Adjustments
Current assets:
Cash and equivalents	0		0		0	0
Accounts receivable	0		0
Contracts in process	0		0
Inventories
Work in process	0		0
Raw materials	0		0
Finished goods	0		0
Pre-owned aircraft	0
Other current assets	0		0
Total current assets	0		0
Noncurrent assets:
Property, plant and equipment	0		0
Accumulated depreciation of PP&E	0		0
Intangible assets	0		0
Accumulated amortization of intangible assets	0		0
Goodwill	0		0
Other assets	(35)		0
Investment in subsidiaries	(33,324)		(33,450)
Total noncurrent assets	(33,359)		(33,450)
Total assets	(33,359)		(33,450)
Current liabilities:
Customer advances and deposits	0		0
Other current liabilities	0		0
Total current liabilities	0		0
Noncurrent liabilities:
Long-term debt	0		0
Other liabilities	0		0
Total noncurrent liabilities	0		0
Intercompany	0		0
Shareholders’ equity:
Common stock	(50)		(50)
Other shareholders' equity	(33,309)		(33,400)
Total shareholders’ equity	(33,359)		(33,450)
Total liabilities and shareholders’ equity	$ (33,359)		$ (33,450)

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