Financial Instruments - Narrative (Details) - USD ($) | 1 Months Ended | 6 Months Ended | | |
Nov. 30, 2019 | Sep. 30, 2019 | Jun. 27, 2021 | Dec. 27, 2020 | Jun. 28, 2020 |
Debt Instrument [Line Items] | | | | | |
Current portion of long-term debt | | | $ 189,600,000 | $ 432,600,000 | $ 378,600,000 |
Production financing facilities, term (less than) | | | 2 years | | |
Production financing loan, weighted average interest rate | | | 3.00% | | |
Minimum | | | | | |
Debt Instrument [Line Items] | | | | | |
Term of loan facility | 3 years | | | | |
3.50% Notes Due 2027 | | | | | |
Debt Instrument [Line Items] | | | | | |
Redemption price (as a percent) | 100.00% | | | | |
Senior Unsecured Notes | Minimum | | | | | |
Debt Instrument [Line Items] | | | | | |
Upward adjustment if credit rating is reduced (as a percent) | 0.25% | | | | |
Senior Unsecured Notes | Maximum | | | | | |
Debt Instrument [Line Items] | | | | | |
Term of loan facility | 10 years | | | | |
Upward adjustment if credit rating is reduced (as a percent) | 2.00% | | | | |
Senior Unsecured Notes | Senior Notes | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | $ 2,400,000,000 | | | | |
Underwriting discount and fees | 20,000,000 | | | | |
Net proceeds after deduction of underwriting discount and fees | 2,400,000,000 | | | | |
2.60% Notes Due 2022 | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt stated interest rate | | | 2.60% | | |
2.60% Notes Due 2022 | Senior Notes | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | $ 300,000,000 | | | | |
Debt stated interest rate | 2.60% | | | | |
2.60% Notes Due 2022 | Senior Notes | US Treasury (UST) Interest Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | 0.15% | | | | |
3.00% Notes Due 2024 | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt stated interest rate | | | 3.00% | | |
3.00% Notes Due 2024 | Senior Notes | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | $ 500,000,000 | | | | |
Debt stated interest rate | 3.00% | | | | |
3.00% Notes Due 2024 | Senior Notes | US Treasury (UST) Interest Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | 0.25% | | | | |
3.55% Notes Due 2026 | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt stated interest rate | | | 3.55% | | |
3.55% Notes Due 2026 | Senior Notes | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | $ 675,000,000 | | | | |
Debt stated interest rate | 3.55% | | | | |
3.55% Notes Due 2026 | Senior Notes | US Treasury (UST) Interest Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | 0.30% | | | | |
3.90% Notes Due 2029 | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt stated interest rate | | | 3.90% | | |
3.90% Notes Due 2029 | Senior Notes | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | $ 900,000,000 | | | | |
Debt stated interest rate | 3.90% | | | | |
3.90% Notes Due 2029 | Senior Notes | US Treasury (UST) Interest Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | 0.35% | | | | |
Term Loan Agreement | Unsecured Debt | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | | $ 1,000,000,000 | | | |
Consolidated interest coverage ratio | | 3 | | | |
Consolidated total leverage ratio | | 3.50 | | | |
Repayments of unsecured debt | | | $ 265,000,000 | | |
Term Loan Agreement | Unsecured Debt | Minimum | | | | | |
Debt Instrument [Line Items] | | | | | |
Consolidated total leverage ratio | | 5.40 | | | |
Term Loan Agreement | Unsecured Debt | Maximum | | | | | |
Debt Instrument [Line Items] | | | | | |
Consolidated total leverage ratio | | 5.65 | | | |
Three-Year Term Loan Facility | Unsecured Debt | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | | $ 400,000,000 | | | |
Term of loan facility | | 3 years | | | |
Repayments of unsecured debt | | | 250,000,000 | | |
Three-Year Term Loan Facility | Unsecured Debt | Minimum | Eurocurrency Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 0.875% | | | |
Three-Year Term Loan Facility | Unsecured Debt | Minimum | Base Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 0.00% | | | |
Three-Year Term Loan Facility | Unsecured Debt | Maximum | Eurocurrency Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 1.75% | | | |
Three-Year Term Loan Facility | Unsecured Debt | Maximum | Base Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 0.75% | | | |
Five-Year Term Loan Facility | Unsecured Debt | | | | | |
Debt Instrument [Line Items] | | | | | |
Aggregate principal amount | | $ 600,000,000 | | | |
Term of loan facility | | 5 years | | | |
Repayments of unsecured debt | | | $ 15,000,000 | | |
Five-Year Term Loan Facility | Unsecured Debt | Debt Instrument, Redemption, Period One | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt stated interest rate | | 5.00% | | | |
Term of loan facility | | 2 years | | | |
Five-Year Term Loan Facility | Unsecured Debt | Debt Instrument, Redemption, Period Two | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt stated interest rate | | 10.00% | | | |
Five-Year Term Loan Facility | Unsecured Debt | Minimum | Eurocurrency Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 1.00% | | | |
Five-Year Term Loan Facility | Unsecured Debt | Minimum | Base Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 0.00% | | | |
Five-Year Term Loan Facility | Unsecured Debt | Maximum | Eurocurrency Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 1.875% | | | |
Five-Year Term Loan Facility | Unsecured Debt | Maximum | Base Rate | | | | | |
Debt Instrument [Line Items] | | | | | |
Basis spread on variable rate (as a percent) | | 0.875% | | | |