Financial Instruments (Schedule of Contractual Maturities) (Details) $ in Millions	Dec. 31, 2019 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Total	$ 570.6
Less Than 1 Year	91.2
1-5 Years	276.5
6-10 Years	80.4
More Than 10 Years	$ 122.5

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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