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Financing Arrangements (Narrative) (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Aug. 17, 2017 | Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2018
Debt Instrument [Line Items] |  |  |  |
Long-term debt |  | $ 4,017,700,000 | $ 3,723,500,000 |
Proceeds from issuance of senior long-term debt |  |  |  | $ 2,479,300,000
Net proceeds from issuance of notes |  | 527,000,000.0 | 0 | 25,900,000
Guarantees outstanding |  | 700,000 |  |
Operating leases, rent expense |  |  | 48,100,000 | 58,500,000
headquarters building [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Capital leases, balance sheet, assets by major class, net |  | 116,100,000 | 124,700,000 |
Amortization |  | 130,900,000 | 137,700,000 |
Capital Lease Obligations, Current |  | 7,100,000 | 6,800,000 |
Capital Leases, Income Statement, Amortization Expense |  | 8,700,000 | 8,700,000 | 5,200,000
Operating leases, rent expense |  |  |  | 900,000
Capital Lease Obligations, Noncurrent |  | 123,800,000 | 130,900,000 |
headquarters building [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Operating leases, rent expense |  |  |  | 900,000
Letter Of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total unused capacity |  | 13,800,000 |  |
Letters of Credit Outstanding, Amount |  | $ 32,200,000 | 32,200,000 |
Notes Payable, Other Payables | 3.25% notes due 11/15/2025(4) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, effective interest rate |  | 1.44% |  |
Notes outstanding |  | $ 250,000,000.0 | 250,000,000.0 |
Stated Note interest rate |  | 3.25% |  |
Weighted average fixed rate |  | 3.45% |  |
Notes Payable, Other Payables | August 2013 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Notes outstanding |  | $ 250,000,000 |  |
Weighted average fixed rate |  | 3.30% |  |
Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility |  | $ 154,200,000 |  |
Maximum borrowing capacity |  | 316,600,000 |  |
Total unused capacity |  | 212,800,000 |  |
Committed credit facilities, fee |  | $ 1,300,000 |  |
Bridge Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Quarterly installment payments, percentage |  | 2.50% |  |
Bridge Loan | Term Loan Due Two Thousand Forty Seven [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 300,000,000.0 |  |  |
Stated Note interest rate | 4.20% |  |  |
Bridge Loan | Term loan due 8/17/2022(2) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 750,000,000.0 | $ 0 | 250,000,000.0 |
Stated Note interest rate | 2.70% |  |  |
Debt instrument, term | 5 years |  |  |
Bridge Loan | Term Loan Due Two Thousand Twenty Four [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 700,000,000.0 |  |  |
Stated Note interest rate | 3.15% |  |  |
Bridge Loan | Term Loan Due Two Thousand Twenty Seven [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 750,000,000.0 |  |  |
Stated Note interest rate | 3.40% |  |  |
Bridge Loan | Term Loan Due Two Thousand Twenty [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, term | 3 years |  |  |
Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Notes outstanding | $ 2,500,000,000 |  |  |
2.5% Notes due April 2030 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Net proceeds from issuance of notes |  | 495,000,000.0 |  |
Notes Payable |  | $ 500,000,000.0 |  |
Twenty Seventeen Term Loan Two [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.25% |  |
Quarterly installment payments, percentage |  | 2.50% |  |
Notes Payable |  | $ 750,000,000 |  |
Repayments of Debt |  | 250,000,000.0 | 306,300,000 | 175,000,000.0
RB Foods Term Loans [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Net proceeds from issuance of notes |  | $ 1,498,300,000 |  |
Twenty Seventeen Term Loan One |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.125% |  |
Notes Payable |  | $ 750.0 |  |
Repayments of Debt |  |  | $ 130,000,000.0 | $ 370,000,000.0
Interest Rate Swap [Member] | Notes Payable, Other Payables | 5.20% Notes Due 2015 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Notes outstanding |  | 100,000,000 |  |
Revolving Credit Facility [Member] | Credit Facility Expiring August 2022 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility |  | $ 1,000,000,000.0 |  |
Basis spread on variable rate |  | 1.25% |  |
Debt instrument, term |  | 5 years |  |
Revolving Credit Facility [Member] | Credit Facility Expiring December 2021 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility |  | $ 1,000,000,000.0 |  |
Basis spread on variable rate |  | 1.25% |  |
Revolving Credit Facility [Member] | Maximum [Member] | Credit Facility Expiring August 2022 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.75% |  |
Revolving Credit Facility [Member] | Maximum [Member] | Credit Facility Expiring December 2021 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.75% |  |

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