Discontinued Operations - Additional Information (Detail) € in Millions, $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Jul. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Apr. 01, 2017 USD ($)	Sep. 24, 2016 Group	Jul. 01, 2017 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 23, 2016 EUR (€)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of disposal groups | Group				4
Accrued expenses and other current liabilities		$ 883				$ 883	$ 1,002
Discontinued Operations | European Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Warranties on sale and purchase agreement | €								€ 10
Discontinued Operations | South Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale of discontinued operations						12
Discontinued Operations | China
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale of discontinued operations		1				(9)
Gain (loss) on sale of discontinued operations					$ 10
Discontinued Operations | Oceania
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale of discontinued operations						58
Proceeds for the extension of sale and purchase agreement		8
Accrued expenses and other current liabilities		$ 8				8
Discontinued Operations | Aurelius Rho Invest DS GmbH | European Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale of discontinued operations						$ (8)	(108)
Accrued liability under working capital adjustment provision							$ 70
Payment of accrued liability under working capital adjustment provision	$ 37		$ 35
Change in foreign currency rate and accrued interest on unpaid portion	$ 2
Discontinued Operations | Aurelius Rho Invest DS GmbH | European Business | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services period						24 months