Notional Amount of Currency Forward Contracts Designated and Undesignated as Cash Flow Hedges (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
Fair Value Measurements [Line Items]
Derivative, Notional Amount	$ 306	$ 549
Not Designated as Hedging Instrument [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	93	365
Foreign Exchange Forward [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	296	252
Foreign Exchange Forward [Member] | United States of America, Dollars [Member]
Fair Value Measurements [Line Items]
Traded Currency	Mexican peso, Euro	Mexican peso
Derivative, Notional Amount	110	97
Foreign Exchange Forward [Member] | Euro Member Countries, Euro [Member]
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar, Canadian dollar, Hungarian forint, British pound, Swiss franc, Indian rupee, Russian ruble	U.S. dollar, Canadian dollar, Hungarian forint, British pound, Swiss franc, Indian rupee
Derivative, Notional Amount	88	73
Foreign Exchange Forward [Member] | United Kingdom, Pounds [Member]
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar, Euro	U.S. dollar, Euro
Derivative, Notional Amount	22	20
Foreign Exchange Forward [Member] | Sweden, Kronor [Member]
Fair Value Measurements [Line Items]
Traded Currency	Euro	Euro
Derivative, Notional Amount	17	15
Foreign Exchange Forward [Member] | South Africa, Rand [Member]
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar, Euro	U.S. dollar
Derivative, Notional Amount	14	8
Foreign Exchange Forward [Member] | Thailand, Baht [Member]
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar, Australian dollar	U.S. dollar, Australian dollar
Derivative, Notional Amount	21	28
Foreign Exchange Forward [Member] | Brazil, Brazil Real
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar, Euro
Derivative, Notional Amount	12
Foreign Exchange Forward [Member] | India, Rupees [Member]
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar, British pound, Euro	U.S. dollar, British pound, Euro
Derivative, Notional Amount	12	11
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	83	68
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	3
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	19	19
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	2	1
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Sweden, Kronor [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount		1
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | South Africa, Rand [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	14	8
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Thailand, Baht [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	21	28
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Brazil, Brazil Real
Fair Value Measurements [Line Items]
Derivative, Notional Amount	12
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | India, Rupees [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	12	11
Currency Swap [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	10	297
Currency Swap [Member] | United States of America, Dollars [Member]
Fair Value Measurements [Line Items]
Traded Currency		Canadian dollar, Euro
Derivative, Notional Amount		147
Currency Swap [Member] | India, Rupees [Member]
Fair Value Measurements [Line Items]
Traded Currency	U.S. dollar
Derivative, Notional Amount	10
Currency Swap [Member] | Canada, Dollars [Member]
Fair Value Measurements [Line Items]
Traded Currency	Euro	Euro
Derivative, Notional Amount	0	150
Currency Swap [Member] | Not Designated as Hedging Instrument [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	10	297	225
Currency Swap [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount		147
Currency Swap [Member] | Not Designated as Hedging Instrument [Member] | India, Rupees [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	10
Currency Swap [Member] | Not Designated as Hedging Instrument [Member] | Canada, Dollars [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount		150
Cash Flow Hedging [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	213	184
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	213	184
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | United States of America, Dollars [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	107	97
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | Euro Member Countries, Euro [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	69	54
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | United Kingdom, Pounds [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	20	19
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | Sweden, Kronor [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	17	14
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | South Africa, Rand [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | India, Rupees [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount
Cash Flow Hedging [Member] | Currency Swap [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	0	0
Cash Flow Hedging [Member] | Currency Swap [Member] | India, Rupees [Member]
Fair Value Measurements [Line Items]
Derivative, Notional Amount	$ 0