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Debt - Schedule of Long-term Debt Instruments (Details) $ in Millions, $ in Millions | Sep. 30, 2024 USD ($) | Sep. 30, 2024 AUD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 AUD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 AUD ($) | Dec. 31, 2010 USD ($) | Aug. 31, 2009 USD ($) | Sep. 30, 2003 USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Unamortized discounts and debt issuance costs | $ (70) |  | $ (67) |  | $ (68) |  |  |  |
Total long-term debt | 13,737 |  | 11,535 |  | 11,222 |  |  |  |
Less: current portion of long-term debt (iii) | (3,065) |  | (1,759) |  | (1,687) |  |  |  |
Long-term debt | 10,672 |  | 9,776 |  | 9,535 |  |  |  |
Notes acquired |  |  |  |  |  |  | $ 87 | $ 87 |
Short-term debt | 153 |  | 107 |  | 173 |  |  |  |
Interest Rate Swap |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Derivative, amount of hedged item | 1,375 | $ 300 | 1,375 | $ 0 | 1,375 | $ 0 |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Hedged liability, fair value hedge, cumulative increase (decrease) | $ 27 |  | 30 |  | 30 |  |  |  |
0.875% euro Senior Notes due 2023 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 0.875% | 0.875% |  |  |  |  |  |  |
Effective interest rate | 0.92% | 0.92% |  |  |  |  |  |  |
Long-term debt, gross | $ 0 |  | 0 |  | 530 |  |  |  |
1.875% euro Senior Notes due 2024 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 1.875% | 1.875% |  |  |  |  |  |  |
Effective interest rate | 2.02% | 2.02% |  |  |  |  |  |  |
Long-term debt, gross | $ 0 |  | 663 |  | 636 |  |  |  |
3.875% Senior Notes due 2025 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 3.875% | 3.875% |  |  |  |  |  |  |
Effective interest rate | 3.93% | 3.93% |  |  |  |  |  |  |
Long-term debt, gross | $ 1,250 |  | 1,250 |  | 1,250 |  |  |  |
1.250% euro Senior Notes due 2026 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 1.25% | 1.25% |  |  |  |  |  |  |
Effective interest rate | 1.25% | 1.25% |  |  |  |  |  |  |
Long-term debt, gross | $ 840 |  | 829 |  | 795 |  |  |  |
3.400% Senior Notes due 2027 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 3.40% | 3.40% |  |  |  |  |  |  |
Effective interest rate | 3.49% | 3.49% |  |  |  |  |  |  |
Long-term debt, gross | $ 600 |  | 600 |  | 600 |  |  |  |
4.000% euro Senior Notes due 2027 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 4.00% | 4.00% |  |  |  |  |  |  |
Effective interest rate | 4.13% | 4.13% |  |  |  |  |  |  |
Long-term debt, gross | $ 560 |  | 553 |  | 530 |  |  |  |
3.950% Senior Notes due 2028 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 3.95% | 3.95% |  |  |  |  |  |  |
Effective interest rate | 4.07% | 4.07% |  |  |  |  |  |  |
Long-term debt, gross | $ 900 |  | 900 |  | 900 |  |  |  |
1.375% euro Senior Notes due 2028 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 1.375% | 1.375% |  |  |  |  |  |  |
Effective interest rate | 1.42% | 1.42% |  |  |  |  |  |  |
Long-term debt, gross | $ 672 |  | 663 |  | 636 |  |  |  |
5.200% Senior Notes due 2029 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 5.20% | 5.20% |  |  |  |  |  |  |
Effective interest rate | 5.30% | 5.30% |  |  |  |  |  |  |
Long-term debt, gross | $ 750 |  | 0 |  | 0 |  |  |  |
4.125% Sterling Senior Notes due 2029 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 4.125% | 4.125% |  |  |  |  |  |  |
Effective interest rate | 4.22% | 4.22% |  |  |  |  |  |  |
Long-term debt, gross | $ 536 |  | 509 |  | 490 |  |  |  |
1.625% euro Senior Notes due 2030 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 1.625% | 1.625% |  |  |  |  |  |  |
Effective interest rate | 1.72% | 1.72% |  |  |  |  |  |  |
Long-term debt, gross | $ 840 |  | 829 |  | 795 |  |  |  |
4.000% euro Senior Notes due 2031 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 4.00% | 4.00% |  |  |  |  |  |  |
Effective interest rate | 4.10% | 4.10% |  |  |  |  |  |  |
Long-term debt, gross | $ 840 |  | 829 |  | 795 |  |  |  |
6.400% Senior Notes due 2033 (i) | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 6.40% | 6.40% |  |  |  |  |  |  |
Effective interest rate | 6.43% | 6.43% |  |  |  |  |  |  |
Long-term debt, gross | $ 213 |  | 213 |  | 213 |  |  |  | $ 300
5.400% Senior Notes due 2034 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 5.40% | 5.40% |  |  |  |  |  |  |
Effective interest rate | 5.52% | 5.52% |  |  |  |  |  |  |
Long-term debt, gross | $ 750 |  | 0 |  | 0 |  |  |  |
4.250% euro Senior Notes due 2035 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 4.25% | 4.25% |  |  |  |  |  |  |
Effective interest rate | 4.38% | 4.38% |  |  |  |  |  |  |
Long-term debt, gross | $ 840 |  | 829 |  | 795 |  |  |  |
5.125% Senior Notes due 2045 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 5.125% | 5.125% |  |  |  |  |  |  |
Effective interest rate | 5.25% | 5.25% |  |  |  |  |  |  |
Long-term debt, gross | $ 500 |  | 500 |  | 500 |  |  |  |
4.400% Senior Notes due 2047 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 4.40% | 4.40% |  |  |  |  |  |  |
Effective interest rate | 4.44% | 4.44% |  |  |  |  |  |  |
Long-term debt, gross | $ 400 |  | 400 |  | 400 |  |  |  |
4.500% Senior Notes due 2048 | Senior notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, stated percentage | 4.50% | 4.50% |  |  |  |  |  |  |
Effective interest rate | 4.63% | 4.63% |  |  |  |  |  |  |
Long-term debt, gross | $ 600 |  | 600 |  | 600 |  |  |  |
PHP interest bearing loan due 2027 | Line of credit |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Effective interest rate | 6.05% | 6.05% |  |  |  |  |  |  |
Long-term debt, gross | $ 407 |  | 396 |  | 400 |  |  |  |
AUD interest bearing loan due 2029 | Line of credit |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Effective interest rate | 5.10% | 5.10% |  |  |  |  |  |  |
Long-term debt, gross | $ 565 |  | 0 |  | 0 |  |  |  |
U.S. Dollar Commercial Paper | Commercial paper |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Effective interest rate | 5.47% | 5.47% |  |  |  |  |  |  |
Long-term debt, gross | $ 1,295 |  | 1,002 |  | 260 |  |  |  |
Euro Commercial Paper | Commercial paper |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Effective interest rate | 3.69% | 3.69% |  |  |  |  |  |  |
Long-term debt, gross | $ 383 |  | 0 |  | 159 |  |  |  |
Other | Other |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt, gross | $ 66 |  | $ 37 |  | $ 6 |  |  |  |

X
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