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Long-Term Debt And Borrowing Arrangements - Additional Information (Detail) € in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2015 USD ($) | Dec. 31, 2014 USD ($) | Jun. 30, 2014 USD ($) | Nov. 30, 2013 USD ($) | Apr. 30, 2013 USD ($) | Mar. 31, 2013 USD ($) | Nov. 30, 2012 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2015 EUR (€) | Mar. 31, 2015 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Uncommitted credit facilities |  | $ 9 |  |  |  |  |  |  | $ 3 | $ 9 |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  |  |  | $ (23) | $ (56) | $ (147) |  |  |  |
Uncommitted Credit Facility | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facilities bearing interest |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |
Uncommitted Credit Facility | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facilities bearing interest |  |  |  |  |  |  |  |  | 0.21% |  |  |  |  |  |
6% Euro-Denominated Senior Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage |  | 6.00% |  |  |  |  |  |  | 6.00% | 6.00% |  |  |  |  |
Long-term Debt, Gross |  | $ 561 |  |  |  |  |  |  | $ 502 | $ 561 |  |  |  |  |
Debt Instrument, Face Amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 200 | € 250
Proceeds from Issuance of Debt |  |  |  |  |  |  |  |  | $ 295 |  |  |  |  |  |
Aggregate rate of LIBOR rate |  |  |  |  |  |  |  |  | 4.85% |  |  |  |  |  |
5 1/2% Senior Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage |  | 5.50% |  |  |  |  |  |  | 5.50% | 5.50% |  |  |  |  |
Proceeds from issue of senior notes |  |  |  |  |  |  |  |  | $ 500 |  |  |  |  |  |
Long-term Debt, Gross |  | $ 674 |  |  |  |  |  |  | 674 | $ 674 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | 175 |  |  |  |  |  |
Floating Rate Term Loan Due March 2019 | Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issue of senior notes |  |  |  |  |  | $ 500 |  | $ 200 |  |  |  |  |  |  |
Long-term Debt, Gross |  | 980 |  |  |  |  |  |  | $ 970 | 980 |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  |  |  |  |  |  |  | $ 300 |  |  |  |  |
Spread over LIBOR |  |  |  |  |  |  |  |  | 2.25% |  |  |  |  |  |
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate |  |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |
Aggregate rate of LIBOR rate |  |  |  |  |  |  |  |  | 3.00% |  |  |  |  |  |
Floating Rate Notes [Member] | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of senior notes |  | $ 420 | $ 75 |  |  |  |  |  |  |  |  |  |  |  |
8 1/4% Senior Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage |  | 8.25% |  |  |  |  |  |  | 8.25% | 8.25% |  |  |  |  |
Debt Instrument, Repurchased Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 292 |  |
Debt Instrument, Repurchase Amount |  |  |  |  |  |  |  |  | $ 395 |  |  |  |  |  |
9 3/4% Senior Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage |  | 9.75% |  |  |  |  |  |  | 0.00% | 9.75% |  |  |  |  |
Long-term Debt, Gross |  | $ 223 |  |  |  |  |  |  | $ 0 | $ 223 |  |  |  |  |
Debt Instrument, Repurchased Face Amount |  |  |  |  |  |  |  |  | $ 223 |  |  |  |  |  |
Proceeds from Issuance of Debt |  |  |  |  |  |  |  |  |  |  |  | $ 250 |  |  |
Repayment of term loan | $ 243 |  |  |  | $ 27 |  |  |  |  |  |  |  |  |  |
4 7/8% Senior Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage |  | 4.875% |  |  |  |  |  |  | 4.875% | 4.875% |  |  |  |  |
Proceeds from issue of senior notes |  |  |  |  |  |  | $ 300 |  |  |  |  |  |  |  |
Long-term Debt, Gross |  | $ 300 |  |  |  |  |  |  | $ 300 | $ 300 |  |  |  |  |
Floating Rate Senior Notes Due December 2017 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issue of senior notes |  |  |  | $ 247 |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, Gross |  | $ 248 |  |  |  |  |  |  | $ 249 | $ 248 |  |  |  |  |
Issuance price as percentage of face value |  |  |  | 98.75% |  |  |  |  |  |  |  |  |  |  |
Spread over LIBOR |  |  |  |  |  |  |  |  | 2.75% |  |  |  |  |  |
Aggregate rate of LIBOR rate |  |  |  |  |  |  |  |  | 3.16% |  |  |  |  |  |
Five And One Over Four Senior Notes [Member] | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage |  | 0.00% |  |  |  |  |  |  | 5.25% | 0.00% |  |  |  |  |
Proceeds from issue of senior notes |  |  |  |  |  |  |  |  | $ 375 |  |  |  |  |  |
Long-term Debt, Gross |  | $ 0 |  |  |  |  |  |  | 375 | $ 0 |  |  |  |  |
Interest Rate Swap [Member] | Floating Rate Term Loan Due March 2019 | Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Amount of Hedged Item |  |  |  |  |  |  |  |  | $ 600 |  |  |  |  |  |
Derivative, Fixed Interest Rate |  |  |  |  |  |  |  |  | 3.96% |  |  |  |  |  |
Interest Rate Swap [Member] | Floating Rate Senior Notes Due December 2017 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Fixed Interest Rate |  |  |  |  |  |  |  |  | 3.58% |  |  |  |  |  |

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