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Financial Assets and Liabilities Subject to Recurring Fair Value Measurements (Detail) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | $ 48.0 | $ 119.4
Derivative liabilities | 189.8 | 98.2
Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 1,687.6 | 1,613.0
Marketable equity securities, Fair Value | 2.9 | 1.2
Total marketable securities | 1,690.5 | 1,614.2
Derivative assets | 48.0 | 119.4
Derivative liabilities | 189.8 | 98.2
Fair Value, Measurements, Recurring | Level 1 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 146.6 | 115.0
Marketable equity securities, Fair Value | 2.9 | 1.2
Total marketable securities | 149.5 | 116.2
Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 1,541.0 | 1,498.0
Total marketable securities | 1,541.0 | 1,498.0
Derivative assets | 48.0 | 119.4
Derivative liabilities | 189.8 | 98.2
Fair Value, Measurements, Recurring | Cross currency swaps |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 25.0 | 49.1
Derivative liabilities | 117.1 | 52.0
Fair Value, Measurements, Recurring | Cross currency swaps | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 25.0 | 49.1
Derivative liabilities | 117.1 | 52.0
Fair Value, Measurements, Recurring | Interest-rate swaps |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 12.3 | 8.9
Derivative liabilities | 14.5 | 30.6
Fair Value, Measurements, Recurring | Interest-rate swaps | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 12.3 | 8.9
Derivative liabilities | 14.5 | 30.6
Fair Value, Measurements, Recurring | Foreign-exchange contracts |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 9.9 | 59.9
Derivative liabilities | 55.5 | 14.8
Fair Value, Measurements, Recurring | Foreign-exchange contracts | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 9.9 | 59.9
Derivative liabilities | 55.5 | 14.8
Fair Value, Measurements, Recurring | Commodity Contract |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 0.8 | 1.5
Derivative liabilities | 2.7 | 0.8
Fair Value, Measurements, Recurring | Commodity Contract | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Derivative assets | 0.8 | 1.5
Derivative liabilities | 2.7 | 0.8
U.S. tax-exempt securities | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 327.1 | 445.1
U.S. tax-exempt securities | Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 327.1 | 445.1
U.S. taxable municipal / non-U.S. provincial bonds | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 220.5 | 180.8
U.S. taxable municipal / non-U.S. provincial bonds | Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 220.5 | 180.8
U.S. corporate securities | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 299.1 | 251.0
U.S. corporate securities | Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 299.1 | 251.0
U.S. government and agency securities | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 146.6 | 115.0
U.S. government and agency securities | Fair Value, Measurements, Recurring | Level 1 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 146.6 | 115.0
Non-U.S. corporate securities | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 483.9 | 450.0
Non-U.S. corporate securities | Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 483.9 | 450.0
Non-U.S. government securities | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 110.3 | 76.4
Non-U.S. government securities | Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 110.3 | 76.4
Other debt securities | Fair Value, Measurements, Recurring |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | 100.1 | 94.7
Other debt securities | Fair Value, Measurements, Recurring | Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Marketable debt securities | $ 100.1 | $ 94.7

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