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Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2020

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Asset Retirement Obligations

A reconciliation of our AROs is as follows:

			Years Ended December 31,
(in millions)			2020						2019
AROs, beginning of period			$	1,315.2					$	1,160.1
Liabilities incurred			10.8						15.8
Liabilities settled			(125.1)						(112.8)
Accretion expense			68.0						62.4
Revisions in estimated cash flows			167.3						191.0
Foreign currency translation			(42.3)						(1.3)
AROs, end of period			1,393.9						1,315.2
Less current portion			190.2						154.4
Non-current portion of AROs			$	1,203.7					$	1,160.8

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- References

No definition available.

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- Definition

Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859

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