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v3.20.4

Debt - Schedule of Debt (Details) | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 EUR (€) | Dec. 31, 2020 GBP (£) | Sep. 30, 2020 USD ($) | Mar. 31, 2020 USD ($)
Short-term debt and current maturities of long-term debt |  |  |  |  |
Euro-denominated commercial paper | $ 112,000,000 |  |  |  | $ 542,000,000
Current maturities of long-term debt | 252,000,000 |  |  |  | 290,000,000
Current maturities of finance lease liabilities | 431,000,000 |  |  |  | 444,000,000
Short-term debt and current maturities of long-term debt | 795,000,000 |  |  |  | 1,276,000,000
Long-term debt, net of current maturities |  |  |  |  |
Finance lease liabilities | 976,000,000 |  |  |  | 1,046,000,000
Long-term debt | 6,127,000,000 |  |  |  | 9,406,000,000
Less: current maturities | 683,000,000 |  |  |  | 734,000,000
Long-term debt, net of current maturities | 5,444,000,000 |  |  |  | 8,672,000,000
Term loan | Term Loan Payable, AUD, Due 2022 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | 0 |  |  |  | 489,000,000
Term loan | Term Loan Payable, GBP, Due 2022 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | 0 |  |  |  | 556,000,000
Term loan | Term Loan Payable, EUR, Due 2022-2023 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 0 |  |  |  | 822,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.65% | 0.65% | 0.65% |  |
Term loan | Term Loan Payable, EUR, Due 2023-2024 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 488,000,000 |  |  |  | 821,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.80% | 0.80% | 0.80% |  |
Term loan | Term Loan Payable, USD, Due 2025 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 0 |  |  |  | 480,000,000
Senior notes | Senior notes due 2023 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 276,000,000 |  |  |  | 276,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 4.45% | 4.45% | 4.45% |  |
Face amount | $ 274,000,000 |  |  |  |
Senior notes | Senior notes due 2023 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 172,000,000 |  |  |  | 172,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 4.45% | 4.45% | 4.45% |  |
Face amount | $ 171,000,000 |  |  |  |
Senior notes | Senior notes due 2025 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 504,000,000 |  |  |  | 505,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 4.25% | 4.25% | 4.25% |  |
Face amount | $ 500,000,000 |  |  |  |
Senior notes | Senior Notes, Due 2024 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 497,000,000 |  |  |  | 0
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 4.00% | 4.00% | 4.00% | 4.00% |
Face amount | $ 500,000,000 |  |  | $ 500,000,000 |
Senior notes | Senior Notes, Due 2026 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 496,000,000 |  |  |  | 0
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 4.13% | 4.13% | 4.13% | 4.13% |
Face amount | $ 500,000,000 |  |  | $ 500,000,000 |
Senior notes | Senior notes due 2025 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 339,000,000 |  |  |  | 307,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 2.75% | 2.75% | 2.75% |  |
Face amount | £ |  |  | £ 250,000,000 |  |
Senior notes | Senior notes due 2026 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 792,000,000 |  |  |  | 709,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 1.75% | 1.75% | 1.75% |  |
Face amount | € |  | € 650,000,000 |  |  |
Senior notes | Senior notes due 2028 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 507,000,000 |  |  |  | 507,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 4.75% | 4.75% | 4.75% |  |
Face amount | $ 500,000,000 |  |  |  |
Senior notes | Senior notes due 2030 |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 269,000,000 |  |  |  | 271,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 7.45% | 7.45% | 7.45% |  |
Face amount | $ 234,000,000 |  |  |  |
Secured debt | Lease credit facility |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | 0 |  |  |  | 11,000,000
Borrowings for assets acquired under long-term financing |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | 742,000,000 |  |  |  | 802,000,000
Mandatorily redeemable preferred stock outstanding |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 63,000,000 |  |  |  | 62,000,000
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 6.00% | 6.00% | 6.00% |  |
Other borrowings |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 6,000,000 |  |  |  | 70,000,000
Minimum | Term loan | Term Loan Payable, AUD, Due 2022 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.94% | 0.94% | 0.94% |  |
Minimum | Term loan | Term Loan Payable, GBP, Due 2022 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.88% | 0.88% | 0.88% |  |
Minimum | Term loan | Term Loan Payable, USD, Due 2025 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 1.40% | 1.40% | 1.40% |  |
Minimum | Secured debt | Lease credit facility |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 1.15% | 1.15% | 1.15% |  |
Minimum | Finance lease liabilities |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.62% | 0.62% | 0.62% |  |
Minimum | Borrowings for assets acquired under long-term financing |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.00% | 0.00% | 0.00% |  |
Maximum | Term loan | Term Loan Payable, AUD, Due 2022 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.96% | 0.96% | 0.96% |  |
Maximum | Term loan | Term Loan Payable, GBP, Due 2022 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 1.46% | 1.46% | 1.46% |  |
Maximum | Term loan | Term Loan Payable, USD, Due 2025 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 2.24% | 2.24% | 2.24% |  |
Maximum | Secured debt | Lease credit facility |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 1.99% | 1.99% | 1.99% |  |
Maximum | Finance lease liabilities |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 18.47% | 18.47% | 18.47% |  |
Maximum | Borrowings for assets acquired under long-term financing |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 6.39% | 6.39% | 6.39% |  |
EURIBOR | Minimum | Term loan | Term Loan Payable, EUR, Due 2023-2024 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Basis spread on variable rate | 0.55% |  |  |  |
EURIBOR | Maximum | Term loan | Term Loan Payable, EUR, Due 2023-2024 |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Basis spread on variable rate | 1.05% |  |  |  |
Commercial paper |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Maximum borrowing capacity | € |  | € 1,000,000,000 |  |  |
Commercial paper | Minimum |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Weighted average interest rate, short- term debt | (0.22%) | (0.22%) | (0.22%) |  |
Commercial paper | Maximum |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Weighted average interest rate, short- term debt | 0.44% | 0.44% | 0.44% |  |
Finance Lease Liabilities | Minimum |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 0.62% | 0.62% | 0.62% |  |
Finance Lease Liabilities | Maximum |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 18.47% | 18.47% | 18.47% |  |
Revolving credit facility | Line of Credit |  |  |  |  |
Long-term debt, net of current maturities |  |  |  |  |
Long-term debt | $ 0 |  |  |  | $ 1,500,000,000
Debt Information [Abstract] |  |  |  |  |
Maximum borrowing capacity | $ 4,000,000,000.0 |  |  |  |
Revolving credit facility | Minimum | Line of Credit |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 1.26% | 1.26% | 1.26% |  |
Revolving credit facility | Maximum | Line of Credit |  |  |  |  |
Debt Information [Abstract] |  |  |  |  |
Effective interest rate | 2.08% | 2.08% | 2.08% |  |

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