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Debt - Schedule of Debt Instruments (Details) - USD ($)
12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
May 31, 2019
Jan. 31, 2018
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount $ 43,000,000        
Long-term Debt 5,330,000,000        
Long-term Debt and Lease Obligation 4,690,000,000 $ 4,317,000,000      
Payments to subsidiary to meet convenant requirement 0 0 $ 0    
Convertible Subordinated Debt [Member] | Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount   1,000,000      
Asset-Based Credit Facility [Member]          
Debt Instrument [Line Items]          
Long-term Line of Credit 0   0    
Financial Services Operations          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount 4,000,000        
Long-term Debt 1,834,000,000        
Long-term Debt and Lease Obligation, Including Current Maturities 1,834,000,000 2,256,000,000      
Long-term Debt and Lease Obligation, Current 595,000,000 839,000,000      
Long-term Debt and Lease Obligation 1,239,000,000 1,417,000,000      
Financial Services Operations | Term Loan [Member]          
Debt Instrument [Line Items]          
Long-term Debt       $ 398,000,000  
Financial Services Operations | Secured Debt [Member]          
Debt Instrument [Line Items]          
Long-term Debt 724,000,000 991,000,000      
Financial Services Operations | Line of Credit [Member]          
Debt Instrument [Line Items]          
Long-term Debt 940,000,000 1,059,000,000      
Financial Services Operations | Commercial Paper [Member]          
Debt Instrument [Line Items]          
Long-term Debt 0 84,000,000      
Financial Services Operations | Borrowings Secured By Operating and Finance Leases [Member]          
Debt Instrument [Line Items]          
Long-term Debt 170,000,000 122,000,000      
Manufacturing Operations [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount 39,000,000        
Long-term Debt 3,496,000,000        
Long-term Debt and Lease Obligation, Including Current Maturities 3,496,000,000 2,932,000,000      
Long-term Debt and Lease Obligation, Current 45,000,000 32,000,000      
Long-term Debt and Lease Obligation 3,451,000,000 2,900,000,000      
Manufacturing Operations [Member] | Illinois Finance Authority Recovery Zone Facility Revenue Bond [Member]          
Debt Instrument [Line Items]          
Long-term Debt 223,000,000        
Manufacturing Operations [Member] | Term Loan [Member]          
Debt Instrument [Line Items]          
Long-term Debt 1,543,000,000 1,556,000,000      
Long-term Line of Credit         $ 1,600,000,000
Manufacturing Operations [Member] | Line of Credit [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount   0 7,000,000    
Manufacturing Operations [Member] | Notes Payable to Banks [Member]          
Debt Instrument [Line Items]          
Long-term Debt 1,087,000,000 1,085,000,000      
Manufacturing Operations [Member] | Notes Payable to Banks [Member] | 9.5 Percent Senior Secured Notes Due 2026 [Member]          
Debt Instrument [Line Items]          
Long-term Debt 589,000,000        
Manufacturing Operations [Member] | Notes Payable to Banks [Member] | Eight Point Two Five Percent Senior Notes [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount   $ 0 13,000,000    
Debt Instrument, Interest Rate, Stated Percentage   8.25%      
Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Five Zero Senior Subordinated Convertible Notes [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount   $ 0 $ 5,000,000    
Debt Instrument, Interest Rate, Stated Percentage   4.50% 4.75%    
Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unamortized Discount   $ 5,000,000 $ 14,000,000    
Debt Instrument, Interest Rate, Stated Percentage   4.75%      
Manufacturing Operations [Member] | Tax Exempt Bond [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Interest Rate, Stated Percentage   6.75% 6.75%    
Long-term Debt 0 $ 220,000,000      
Manufacturing Operations [Member] | Notes Payable, Other Payables [Member]          
Debt Instrument [Line Items]          
Long-term Debt 9,000,000 11,000,000      
G E Operating Agreement [Member] | Manufacturing Operations [Member] | Financed lease obligations [Member]          
Debt Instrument [Line Items]          
Long-term Debt $ 45,000,000 $ 60,000,000