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Goodwill and Intangible Assets Disclosure [Line Items]

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Goodwill Impairment, Fair Value as Percentage of Carrying Value

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

Ratio of the net operating income produced by an asset and its capital cost (original prices paid to buy the asset), used as an input to measure fair value.

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Percentage above fair value that an investor seeking to acquire control of an entity will pay, used as an input to measure fair value.

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- Definition

Market valuation of entity divided by earnings before interest, taxes, depreciation, and amortization (EBITDA), used as an input to measure fair value.

+ References

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- Definition

Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

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Market valuation of entity divided by revenue, used as an input to measure fair value.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended			11 Months Ended		12 Months Ended
	Oct. 02, 2015	Oct. 31, 2014	Aug. 01, 2014	Jan. 01, 2016	Jan. 02, 2015	Jan. 30, 2015	Jan. 31, 2014
Goodwill and Intangible Assets [Line Items]
Goodwill impairment charges			$ 486	$ 0	$ 486	$ 486	$ 0
Amortization expense related to amortizable intangible assets				8		15	35
Intangible asset impairment		$ 17	$ 24	4		41	51
Asset impairment charges				33	$ 41	81	51
Gross carrying value				81		122
HES
Goodwill and Intangible Assets [Line Items]
Goodwill impairment charges				0		486
NSS
Goodwill and Intangible Assets [Line Items]
Goodwill impairment charges				0		0
Reveal Imaging Technologies, Inc. \| HES
Goodwill and Intangible Assets [Line Items]
Intangible asset impairment						14	30
Vitalize and maxIT \| HES
Goodwill and Intangible Assets [Line Items]
Intangible asset impairment	$ 4					24	$ 19
Gross carrying value				38
Plainfield Renewal Energy Holdings LLC \| HES
Goodwill and Intangible Assets [Line Items]
Intangible asset impairment						3
Income Approach Valuation Technique
Goodwill and Intangible Assets [Line Items]
Fair Value Input, Specific company risk premium			2.00%
Market Approach Valuation Technique \| HES
Goodwill and Intangible Assets [Line Items]
Fair Value Inputs, control premium			20.00%
Engineering
Goodwill and Intangible Assets [Line Items]
Fair Value as percentage of carrying value			91.00%
Engineering \| HES
Goodwill and Intangible Assets [Line Items]
Goodwill impairment charges			$ 117
Engineering \| Income Approach Valuation Technique
Goodwill and Intangible Assets [Line Items]
Fair Value Inputs, LT revenue growth rate			2.00%
Fair Value Inputs, Cap rate			14.00%
Engineering \| Market Approach Valuation Technique
Goodwill and Intangible Assets [Line Items]
Fair Value Inputs, EBITDA multiple			6.8
Fair Value Inputs, revenue multiple			0.4
Health Solutions
Goodwill and Intangible Assets [Line Items]
Fair Value as percentage of carrying value			62.00%
Health Solutions \| HES
Goodwill and Intangible Assets [Line Items]
Goodwill impairment charges			$ 369
Health Solutions \| Income Approach Valuation Technique
Goodwill and Intangible Assets [Line Items]
Fair Value Inputs, LT revenue growth rate			3.00%
Fair Value Inputs, Cap rate			12.00%
Health Solutions \| Market Approach Valuation Technique
Goodwill and Intangible Assets [Line Items]
Fair Value Inputs, EBITDA multiple			6.0
Fair Value Inputs, revenue multiple			0.5
Customer Relationships
Goodwill and Intangible Assets [Line Items]
Amortization expense related to amortizable intangible assets				12
Gross carrying value				$ 20		70
Software and Technology
Goodwill and Intangible Assets [Line Items]
Useful life of intangible assets				9 years
Gross carrying value				$ 61		$ 52