Pension Benefit Obligations - AOCI (Details) $ in Millions	Sep. 30, 2021 USD ($)
United States
Amounts included in AOCI that are expected to be recognized as components of net periodic benefit cost during the next fiscal year
Amortization of net actuarial losses	$ (5.6)
Total	(5.6)
International
Amounts included in AOCI that are expected to be recognized as components of net periodic benefit cost during the next fiscal year
Amortization of prior service credit	(0.1)
Amortization of net actuarial losses	(7.4)
Total	$ (7.5)

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Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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