v3.8.0.1

Financial Instruments and Fair Value Measurements - Foreign Currency Contracts Activity (Detail)		9 Months Ended
		Sep. 30, 2017 USD ($) Derivative CAD / $ £ / $ € / $ ¥ / $		Sep. 30, 2017 EUR (€) Derivative CAD / $ £ / $ € / $ ¥ / $	Sep. 30, 2017 GBP (£) Derivative CAD / $ £ / $ € / $ ¥ / $	Sep. 30, 2017 JPY (¥) Derivative CAD / $ £ / $ € / $ ¥ / $	Sep. 30, 2017 CAD Derivative CAD / $ £ / $ € / $ ¥ / $	Sep. 30, 2016 USD ($)		Sep. 30, 2016 EUR (€)	Sep. 30, 2016 GBP (£)	Sep. 30, 2016 JPY (¥)	Sep. 30, 2016 CAD
CAD
Derivative [Line Items]
Notional amounts at January 1		$ 38,000,000					CAD 50,000,000
New contracts		19,000,000					24,000,000
Matured, expired or settled contracts		(17,000,000)					(22,000,000)
Notional amounts at September 30		$ 40,000,000					CAD 52,000,000
Weighted average forward rate at September 30 | CAD / $		1.30		1.30	1.30	1.30	1.30
Active contracts at September 30		18		18	18	18	18
Net Investment Hedges [Member] | CAD
Derivative [Line Items]
Notional amounts at January 1		$ 100,000,000					CAD 133,000,000	$ 0					CAD 0
New contracts		99,000,000					133,000,000	100,000,000					133,000,000
Matured, expired or settled contracts		(100,000,000)					(133,000,000)	0					0
Notional amounts at September 30		$ 99,000,000					CAD 133,000,000	100,000,000					CAD 133,000,000
Weighted average forward rate at September 30 | CAD / $		1.34		1.34	1.34	1.34	1.34
Active contracts at September 30		2		2	2	2	2
Net Investment Hedges [Member] | GBP [Member]
Derivative [Line Items]
Notional amounts at January 1		$ 46,000,000			£ 31,000,000			386,000,000			£ 238,000,000
New contracts		127,000,000			100,000,000			85,000,000			60,000,000
Matured, expired or settled contracts		(173,000,000)			(131,000,000)			(100,000,000)			(60,000,000)
Notional amounts at September 30		$ 0			£ 0			371,000,000			238,000,000
Weighted average forward rate at September 30 | £ / $		0		0	0	0	0
Active contracts at September 30		0		0	0	0	0
Net Investment Hedges [Member] | JPY
Derivative [Line Items]
Notional amounts at January 1								0				¥ 0
New contracts								99,000,000				11,189,000,000
Matured, expired or settled contracts								(99,000,000)				(11,189,000,000)
Notional amounts at September 30								0				0
Forwards and Options [Member] | GBP [Member]
Derivative [Line Items]
Notional amounts at January 1		$ 78,000,000	[1]		£ 48,000,000			148,000,000	[1]		97,000,000
New contracts		137,000,000	[1]		107,000,000			0	[1]		0
Matured, expired or settled contracts		(75,000,000)	[1]		(48,000,000)			(55,000,000)	[1]		(36,000,000)
Notional amounts at September 30		$ 140,000,000	[1]		£ 107,000,000			93,000,000	[1]		£ 61,000,000
Weighted average forward rate at September 30 | £ / $		1.31		1.31	1.31	1.31	1.31
Active contracts at September 30		19		19	19	19	19
Forwards and Options [Member] | JPY
Derivative [Line Items]
Notional amounts at January 1		$ 144,000,000	[1]			¥ 15,500,000,000		109,000,000	[1]			12,840,000,000
New contracts		38,000,000	[1]			4,000,000,000		147,000,000	[1]			15,460,000,000
Matured, expired or settled contracts		(49,000,000)	[1]			(5,400,000,000)		(95,000,000)	[1]			(10,940,000,000)
Notional amounts at September 30		$ 133,000,000	[1]			¥ 14,100,000,000		161,000,000	[1]			¥ 17,360,000,000
Weighted average forward rate at September 30 | ¥ / $		106.11		106.11	106.11	106.11	106.11
Active contracts at September 30		29		29	29	29	29
Forwards and Options [Member] | EUR
Derivative [Line Items]
Notional amounts at January 1		$ 197,000,000	[1]	€ 174,000,000				310,000,000	[1]	€ 275,000,000
New contracts		63,000,000	[1]	56,000,000				359,000,000	[1]	321,000,000
Matured, expired or settled contracts		(81,000,000)	[1]	(72,000,000)				(492,000,000)	[1]	(440,000,000)
Notional amounts at September 30		$ 179,000,000	[1]	€ 158,000,000				177,000,000	[1]	€ 156,000,000
Weighted average forward rate at September 30 | € / $		1.13		1.13	1.13	1.13	1.13
Active contracts at September 30		23		23	23	23	23
Forwards and Options [Member] | USD [Member]
Derivative [Line Items]
Notional amounts at January 1 | $	[1]							50,000,000
New contracts | $	[1]							15,000,000
Matured, expired or settled contracts | $	[1]							(21,000,000)
Notional amounts at September 30 | $	[1]							$ 44,000,000
[1] During the nine months ended September 30, 2017, and 2016, we exercised 33 and 41 forward and option contracts, respectively. We realized gains of $1.6 million and $10.5 million for the three and nine months ended September 30, 2017, respectively, and losses of $3.1 million and $1.2 million for the three and nine months ended September 30, 2016, respectively, in Foreign Currency and Derivative Losses, Net.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959

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