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Seasonal Financing and Debt - Narrative (Detail) - USD ($)
12 Months Ended
Dec. 20, 2017
Nov. 01, 2016
Dec. 31, 2017
Dec. 31, 2016
Aug. 31, 2016
Debt Instrument [Line Items]          
Carrying Value of Assets Pledged As Collateral     $ 900,000,000    
Foreign credit lines available     110,000,000    
Outstanding amounts of accounts receivable sold under international factoring arrangements     19,000,000 $ 18,000,000  
Short term bank loans outstanding     $ 0 $ 192,168,000  
2010 Senior Notes due October 2020 and October 2040          
Debt Instrument [Line Items]          
Interest rate     5.28% 5.28%  
2011 Senior Notes due November 2041          
Debt Instrument [Line Items]          
Interest rate range     2.50%    
Interest rate       5.45%  
Repayments of debt   $ 300,000,000      
2013 Senior Notes due March 2018 and March 2023          
Debt Instrument [Line Items]          
Interest rate     2.43% 2.43%  
2014 Senior Notes due May 2019          
Debt Instrument [Line Items]          
Interest rate range     2.35% 2.35%  
2016 Senior Notes due August 2021          
Debt Instrument [Line Items]          
Interest rate range     2.35%    
Minimum | 2010 Senior Notes due October 2020 and October 2040          
Debt Instrument [Line Items]          
Interest rate range     4.35%    
Minimum | 2013 Senior Notes due March 2018 and March 2023          
Debt Instrument [Line Items]          
Interest rate range     1.70%    
Maximum | 2010 Senior Notes due October 2020 and October 2040          
Debt Instrument [Line Items]          
Interest rate range     6.20%    
Maximum | 2011 Senior Notes due November 2041          
Debt Instrument [Line Items]          
Interest rate range     5.45%    
Maximum | 2013 Senior Notes due March 2018 and March 2023          
Debt Instrument [Line Items]          
Interest rate range     3.15%    
Revolving Credit Facility          
Debt Instrument [Line Items]          
Aggregate commitment under the credit facility       $ 1,600,000,000.00  
Borrowings on credit facility       $ 0  
Revolving Credit Facility | Minimum          
Debt Instrument [Line Items]          
Commitment fee rate for unused commitments       0.08%  
Revolving Credit Facility | Maximum          
Debt Instrument [Line Items]          
Commitment fee rate for unused commitments       0.25%  
Revolving Credit Facility | Base Rate | Minimum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent)       0.00%  
Revolving Credit Facility | Base Rate | Maximum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent)       0.75%  
Revolving Credit Facility | LIBOR | Minimum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent)       0.88%  
Revolving Credit Facility | LIBOR | Maximum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent)       1.75%  
Foreign Short Term Bank Loans          
Debt Instrument [Line Items]          
Short term bank loans outstanding       $ 47,200,000  
Average borrowings     $ 0 $ 2,000,000  
Weighted average interest rate as of the balance sheet date       12.50%  
Domestic Unsecured Committed Revolving Credit Facility And Other Short Term Borrowings          
Debt Instrument [Line Items]          
Average borrowings     $ 811,500,000 $ 728,400,000  
Weighted average interest rate as of the balance sheet date     1.60% 0.60%  
2016 Senior Notes due August 2021 | Senior Notes          
Debt Instrument [Line Items]          
Principal of debt instrument         $ 350,000,000.0
Interest rate range       2.35% 2.35%
2017 Senior Notes due December 2025 | Senior Notes          
Debt Instrument [Line Items]          
Principal of debt instrument     $ 1,000,000,000.0    
Interest rate range     6.75%    
Debt Instrument, Redemption, Period One | 2016 Senior Notes due August 2021          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent)     0.20%    
Redemption price option one     100.00%    
Debt Instrument, Redemption, Period One | 2017 Senior Notes due December 2025          
Debt Instrument [Line Items]          
Percentage of principal amount of debt redeemed     40.00%    
Redemption price option one     106.75%    
Debt Instrument, Redemption, Period One | 2017 Senior Notes due December 2025 | Minimum          
Debt Instrument [Line Items]          
Redemption price call premium     0.00%    
Debt Instrument, Redemption, Period One | 2017 Senior Notes due December 2025 | Maximum          
Debt Instrument [Line Items]          
Redemption price call premium     5.063%    
Debt Instrument, Redemption, Period Two | 2016 Senior Notes due August 2021          
Debt Instrument [Line Items]          
Redemption price option one     100.00%    
Commercial Paper          
Debt Instrument [Line Items]          
Short term bank loans outstanding       $ 145,000,000  
Revolving Credit Facility | Credit Agreement          
Debt Instrument [Line Items]          
Aggregate commitment under the credit facility $ 1,600,000,000        
Equity interest subject to a lien (as a percent) 100.00%        
Voting stock subject to a lien (as a percent) 65.00%        
Interest coverage ratio minimum for covenant compliance 1.00        
Excess availability under credit facility contingency (less than) $ 100,000,000        
Availability threshold contingency (as a percent) 10.00%        
Revolving Credit Facility | Credit Agreement | Base Rate | Minimum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent) 0.25%        
Revolving Credit Facility | Credit Agreement | Base Rate | Maximum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent) 2.00%        
Revolving Credit Facility | Credit Agreement | LIBOR | Minimum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent) 1.25%        
Revolving Credit Facility | Credit Agreement | LIBOR | Maximum          
Debt Instrument [Line Items]          
Interest rate margin for loans (as a percent) 3.00%        
Revolving Credit Facility, Asset Based | Credit Agreement          
Debt Instrument [Line Items]          
Aggregate commitment under the credit facility $ 1,310,000,000        
Revolving Credit Facility, Secured | Credit Agreement          
Debt Instrument [Line Items]          
Aggregate commitment under the credit facility $ 294,000,000