Summary of Significant Accounting Policies - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value Measured on a Recurring Basis - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Cash and cash equivalents:
Derivative assets	$ 218.5	$ 30.3
Total assets	685.8	208.4
Liabilities:
Derivative liabilities	4.9	89.5
Total liabilities	4.9	89.5
Level 1
Cash and cash equivalents:
Derivative assets	0.0	0.0
Total assets	347.3	178.1
Liabilities:
Derivative liabilities	0.0	0.0
Total liabilities	0.0	0.0
Level 2
Cash and cash equivalents:
Derivative assets	218.5	30.3
Total assets	338.5	30.3
Liabilities:
Derivative liabilities	4.9	89.5
Total liabilities	4.9	89.5
Level 3
Cash and cash equivalents:
Derivative assets	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Derivative liabilities	0.0	0.0
Total liabilities	0.0	0.0
Commercial paper
Cash and cash equivalents:
Cash and cash equivalents	120.0
Commercial paper \| Level 1
Cash and cash equivalents:
Cash and cash equivalents	0.0
Commercial paper \| Level 2
Cash and cash equivalents:
Cash and cash equivalents	120.0
Commercial paper \| Level 3
Cash and cash equivalents:
Cash and cash equivalents	0.0
Time deposits
Cash and cash equivalents:
Cash and cash equivalents	347.3
Time deposits \| Level 1
Cash and cash equivalents:
Cash and cash equivalents	347.3
Time deposits \| Level 2
Cash and cash equivalents:
Cash and cash equivalents	0.0
Time deposits \| Level 3
Cash and cash equivalents:
Cash and cash equivalents	$ 0.0
Time deposits and money market funds
Cash and cash equivalents:
Cash and cash equivalents		178.1
Time deposits and money market funds \| Level 1
Cash and cash equivalents:
Cash and cash equivalents		178.1
Time deposits and money market funds \| Level 2
Cash and cash equivalents:
Cash and cash equivalents		0.0
Time deposits and money market funds \| Level 3
Cash and cash equivalents:
Cash and cash equivalents		$ 0.0

Cash and Cash Equivalents, Fair Value Disclosure [Abstract]

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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