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Long-Term Debt and Short-Term Borrowings - Long-Term Debt - Additional Information (Detail) - USD ($) |  | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 | Jun. 30, 2017 | Dec. 31, 2016
Debt Instrument [Line Items] |  |  |
Minimum coverage ratio of EBITDA to total interest expense expressed in percentage |  | 200.00% |
Maximum leverage ratio of total debt less available cash to EBITDA expressed in percentage |  | 425.00% |
Coverage ratio of EBITDA to total interest expense expressed in percentage |  | 1370.00% |
Leverage ratio of total debt less available cash to EBITDA expressed in percentage |  | 124.00% |
2015 Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Amounts available to borrow under Credit Agreement |  | $ 2,800,000,000 |
Revolving credit facility maturity date |  | Mar. 21, 2021 |
5.00% Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate of long-term debt |  | 5.00% | 5.00%
5.00% Senior Notes [Member] | Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate of long-term debt |  | 5.00% | 5.00%
4.875% Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate of long-term debt |  | 4.875% | 4.875%
4.875% Senior Notes [Member] | Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate of long-term debt |  | 4.875% | 4.875%
5.25% Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate of long-term debt |  | 5.25% | 5.25%
5.25% Senior Notes [Member] | Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate of long-term debt |  | 5.25% | 5.25%
Revolving credit facility [Member] | 2015 Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Revolving credit facility increase in borrowing capacity | $ 200,000,000 |  |
Tranche A term loan facility [Member] | 2015 Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Amounts available to borrow under Credit Agreement |  | $ 500,000,000 |
Revolving credit facility maturity date |  | Jan. 09, 2020 |
Tranche B-1 term loan facility [Member] | 2015 Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Amounts available to borrow under Credit Agreement |  | $ 270,000,000 |
Revolving credit facility maturity date |  | Sep. 03, 2020 |
Tranche B-2 term loan facility [Member] | 2015 Credit Agreement [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Amounts available to borrow under Credit Agreement |  | $ 130,000,000 |
Revolving credit facility maturity date |  | Sep. 03, 2022 |

X
- Definition Ratio of EBITDA as defined in the Credit Agreement to interest expense calculated over a trailing twelve month period. + References No definition available. + Details
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X
- Definition Leverage ratio of total debt to EBITDA. + References No definition available. + Details
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- Definition This element represents the maximum ratio of debt less available cash to earnings before interest, taxes, depreciation and amortization (EBITDA) allowed in the reporting entity's credit agreement. + References No definition available. + Details
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- Definition This element represents the minimum ratio of earnings before interest, taxes, depreciation and amortization (EBITDA) to total interest expense required in the reporting entity's credit agreement. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of increase (decrease) of the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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