v3.8.0.1

Financial Instruments and Fair Value Measurements - Foreign Currency Contracts Activity (Detail) | 9 Months Ended
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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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