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Debt and Financing Activities - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 03, 2020 | Nov. 30, 2020 | Mar. 31, 2020
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Total debt | $ 7,148 |  |  | $ 7,387
Less: Current portion | (742) |  |  | (1,052)
Total long-term debt | $ 6,406 |  |  | 6,335
Notes | 3.65% Notes due November 30, 2020 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 3.65% |  | 3.65% |
Total debt | $ 0 |  |  | 700
Notes | 4.75% Notes due March 1, 2021 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 4.75% |  |  |
Total debt | $ 0 |  |  | 323
Notes | 2.70% Notes due December 15, 2022 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 2.70% |  |  |
Total debt | $ 400 |  |  | 400
Notes | 2.85% Notes due March 15, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 2.85% |  |  |
Total debt | $ 400 |  |  | 400
Notes | 3.80% Notes due March 15, 2024 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 3.80% |  |  |
Total debt | $ 1,100 |  |  | 1,100
Notes | 0.90% Notes due December 3, 2025 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 0.90% | 0.90% |  |
Total debt | $ 500 |  |  | 0
Notes | 7.65% Debentures due March 1, 2027 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 7.65% |  |  |
Total debt | $ 167 |  |  | 167
Notes | 3.95% Notes due February 16, 2028 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 3.95% |  |  |
Total debt | $ 600 |  |  | 600
Notes | 4.75% Notes due May 30, 2029 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 4.75% |  |  |
Total debt | $ 400 |  |  | 400
Notes | 6.00% Notes due March 1, 2041 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 6.00% |  |  |
Total debt | $ 282 |  |  | 282
Notes | 4.88% Notes due March 15, 2044 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 4.88% |  |  |
Total debt | $ 411 |  |  | 411
Notes | 0.63% Euro Notes due August 17, 2021 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 0.63% |  |  |
Total debt | $ 704 |  |  | 662
Notes | 1.50% Euro Notes due November 17, 2025 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 1.50% |  |  |
Total debt | $ 700 |  |  | 659
Notes | 1.63% Euro Notes due October 30, 2026 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 1.63% |  |  |
Total debt | $ 587 |  |  | 552
Notes | 3.13% Sterling Notes due February 17, 2029 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt interest rate (percent) | 3.13% |  |  |
Total debt | $ 627 |  |  | 557
Lease and other obligations |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt | $ 270 |  |  | $ 174

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