Other Equity Matters Dividends (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
Mar. 13, 2020	Mar. 12, 2019	Mar. 31, 2020	Mar. 31, 2019
Dividends Payable [Line Items]
Dividends	$ 37.1	$ 40.4
Cash dividends paid per share	$ 0.52	$ 0.52	$ 0.52	$ 0.52

Aggregate dividends paid during the period for each share of common stock outstanding.

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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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