BORROWINGS AND LEASES - Disclosure of Carrying Value of Borrowings (Details) | 1 Months Ended | 6 Months Ended | | | | |
Feb. 29, 2020USD ($) | Jun. 26, 2020EUR (€) | Jun. 28, 2019EUR (€) | Jun. 30, 2020EUR (€) | Jun. 26, 2020USD ($) | Jun. 26, 2020EUR (€) | Dec. 31, 2019EUR (€) | Nov. 30, 2018EUR (€) |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | € 5,676,000,000 | | | € 6,343,000,000 | € 5,622,000,000 | |
Current portion of borrowings | | | 620,000,000 | | | 762,000,000 | 799,000,000 | |
Repayments on third party borrowings | | € (227,000,000) | (175,000,000) | | | | | |
Borrowings | | | | | | 7,100,000,000 | 6,400,000,000 | |
Proceeds from non-current borrowings | | 855,000,000 | € 492,000,000 | | | | | |
US$250 million 3.25% Notes 2021[1] | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 171,000,000 | 221,000,000 | |
Notional amount | $ | | | | | $ 250,000,000 | | | |
Borrowings, interest rate | | | | | 3.25% | 3.25% | | |
US$300 million 4.50% Notes 2021[1] | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 221,000,000 | 266,000,000 | |
Notional amount | $ | | | | | $ 300,000,000 | | | |
Borrowings, interest rate | | | | | 4.50% | 4.50% | | |
€350 million Floating Rate Note 2021 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 350,000,000 | 350,000,000 | |
Notional amount | $ | | | | | $ 350,000,000 | | | |
€700 million 0.75% Notes 2022 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | 699,000,000 | 698,000,000 | |
Notional amount | | | | | | € 700,000,000 | | |
Borrowings, interest rate | | | | | 0.75% | 0.75% | | |
€350 million 2.63% Notes 2023 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 348,000,000 | 348,000,000 | |
Notional amount | | | | | | € 350,000,000 | | |
Borrowings, interest rate | | | | | 2.63% | 2.63% | | |
€500 million 1.13% Notes 2024 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 497,000,000 | 496,000,000 | |
Notional amount | | | | | | € 500,000,000 | | |
Borrowings, interest rate | | | | | 1.13% | 1.13% | | |
€350 million 2.38% Notes 2025 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 347,000,000 | 347,000,000 | |
Notional amount | | | | | | € 350,000,000 | | |
Borrowings, interest rate | | | | | 2.38% | 2.38% | | |
€250 million 2.75% Notes 2026 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 248,000,000 | 248,000,000 | |
Notional amount | | | | | | € 250,000,000 | | |
Borrowings, interest rate | | | | | 2.75% | 2.75% | | |
€650 million 1.50% Notes 2027[3] | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 660,000,000 | 396,000,000 | |
Notional amount | | | | | | € 650,000,000 | | |
Borrowings, interest rate | | | | | 1.50% | 1.50% | | |
€500 million 1.75% Notes 2028 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 494,000,000 | 493,000,000 | |
Notional amount | | | | | | € 500,000,000 | | |
Borrowings, interest rate | | | | | 1.75% | 1.75% | | |
€500 million 1.125% Notes 2029 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 493,000,000 | 493,000,000 | |
Notional amount | | | | | | € 500,000,000 | | |
Borrowings, interest rate | | | | | 1.13% | 1.13% | | |
€500 million 1.88% Notes 2030 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 496,000,000 | 495,000,000 | |
Notional amount | | | | | | € 500,000,000 | | |
Borrowings, interest rate | | | | | 1.88% | 1.88% | | |
Lease obligations | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 232,000,000 | | |
Lease obligations | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | | 276,000,000 | |
EUR commercial paper | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Current portion of borrowings | | | | | | 315,000,000 | 221,000,000 | |
Lease obligations | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Current portion of borrowings | | | | | | 109,000,000 | | |
Lease obligations | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Current portion of borrowings | | | | | | | 111,000,000 | |
One Point Seven Five Percent Notes Due 2026 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Notional amount | | | | | | € 600,000,000 | | |
Borrowings, interest rate | | | | | 1.75% | 1.75% | | |
Zero Point Seven Percent Notes Due 2031 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Notional amount | | | | | | € 500,000,000 | | |
Borrowings, interest rate | | | | | 0.70% | 0.70% | | |
Point Seven Percent Notes 2030 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | € 495,000,000 | 495,000,000 | |
One Point Seven Five Percent Notes 2026 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Borrowings, less current portion | | | | | | 592,000,000 | 0 | |
One Thousand Seventy Five Million USD Borrowings [Member] | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Repayments on third party borrowings | $ | $ (255,000,000) | | | | | | | |
Borrowings | $ | $ 1,075,000,000 | | | | | | | |
Two Hundred And Fifty Million Euro Notes [Member] | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Notional amount | | | | € 250,000,000 | | | | |
Proceeds from non-current borrowings | | € 264,000,000 | | | | | | |
467000000 | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Notional amount | | | | | | | | € 400,000,000 |
Three Point Five Percent Notes Due 2020 [Member] | | | | | | | | |
Disclosure of detailed information about borrowings [line items] | | | | | | | | |
Current portion of borrowings | | | | | | 338,000,000 | € 467,000,000 | |
Notional amount | | | | | | € 525,000,000 | | |
Borrowings, interest rate | | | | | 3.50% | 3.50% | | |