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Long-term Corporate Debt and Borrowing Arrangements - Schedule of Long-Term Debt (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Nov. 30, 2023 | Sep. 30, 2023 | Jul. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Aug. 31, 2020 | Jul. 31, 2019 | Oct. 31, 2018 | Mar. 31, 2018 | Sep. 30, 2017 | Mar. 31, 2017 | Sep. 30, 2016
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Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other | $ 30 |  |  |  | $ 18 |  |  |  |  |  |  |  |  |
Deferred financing fees | (55) |  |  |  | (44) |  |  |  |  |  |  |  |  |
Total | 4,823 |  |  |  | 4,671 |  |  |  |  |  |  |  |  |
Less: Short-term debt and current portion of long-term debt | 32 |  |  |  | 27 |  |  |  |  |  |  |  |  |
Long-term debt | $ 4,791 |  |  |  | 4,644 |  |  |  |  |  |  |  |  |
Senior Notes | 4.125% euro-denominated Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 412.50% |  | 4.125% |  |  |  |  |  |  |  |  | 4.125% |  | 4.125%
Long-term debt | $ 0 |  |  |  | 321 |  |  |  |  |  |  |  |  |
Senior Notes | 4.500% euro-denominated Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 450.00% |  |  |  |  |  |  |  |  |  | 4.50% |  | 4.50% |
Long-term debt | $ 0 |  |  |  | 268 |  |  |  |  |  |  |  |  |
Senior Notes | 4.750% euro-denominated Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 475.00% |  |  |  |  |  |  |  |  | 4.75% |  |  |  |
Long-term debt | $ 386 |  |  |  | 375 |  |  |  |  |  |  |  |  |
Senior Notes | 5.750% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 575.00% |  |  |  |  |  |  | 5.75% | 5.75% |  |  |  |  |
Long-term debt | $ 736 |  |  |  | 732 |  |  |  |  |  |  |  |  |
Senior Notes | 4.750% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 475.00% |  |  |  |  | 4.75% | 4.75% |  |  |  |  |  |  |
Long-term debt | $ 500 |  |  |  | 500 |  |  |  |  |  |  |  |  |
Senior Notes | 5.375% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 537.50% |  |  |  |  | 5.375% | 5.375% |  |  |  |  |  |  |
Long-term debt | $ 600 |  |  |  | 600 |  |  |  |  |  |  |  |  |
Senior Notes | 7.250% euro-denominated Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 725.00% |  |  | 7.25% |  |  |  |  |  |  |  |  |  |
Long-term debt | $ 441 |  |  |  | 0 |  |  |  |  |  |  |  |  |
Senior Notes | 8.000% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 800.00% | 8.00% |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | $ 497 |  |  |  | 0 |  |  |  |  |  |  |  |  |
Loans Payable | 8.000% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest percentage | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable | Floating Rate Term Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | $ 1,164 |  |  |  | 1,176 |  |  |  |  |  |  |  |  |
Loans Payable | Floating Rate Term Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | $ 524 |  |  |  | $ 725 |  |  |  |  |  |  |  |  |

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