Acquisitions (Details) (USD $) In Millions	1 Months Ended		0 Months Ended
	Dec. 31, 2010 Money Controls Limited [Member]	Feb. 28, 2010 Merrimac Industries Inc. [Member]	Jul. 31, 2011 WTA Industries [Member]
Business Acquisition [Line Items]
Sales reported by acquired entity	$ 64	$ 32	$ 21
Business acquisition, purchase price	90	51	38
Business acquisition, cash acquired	3
Business acquisition, debt assumed		3
Aggregate purchase price of current assets	24	23	8
Aggregate purchase price of property, plant, and equipment	10	12	12
Aggregate purchase price of identified intangible assets	43	20	11
Aggregate purchase price of goodwill	31	14	10
Aggregate purchase price of other long-term assets	6
Aggregate purchase price of deferred tax asset	4
Aggregate purchase price of current liabilities	11	10	4
Aggregate purchase price of deferred tax liabilities	13	8
Aggregate purchase price of long-term liabilities	$ 1