Subsequent Events	12 Months Ended
Dec. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events A. Dividend Payments In January and February 2022, we declared a dividend of $0.2465, which will be paid in February 2022 and March 2022, respectively. B. Note Issuances In January 2022, we issued £250.0 million of 1.875% senior unsecured notes due January 2027 (the "January 2027 Notes") and £250.0 million of 2.500% senior unsecured notes due January 2042 (the "January 2042 Notes"). The public offering price for the January 2027 Notes was 99.487% of the principal amount for an effective semi-annual yield to maturity of 1.974% and the public offering price for the January 2042 Notes was 98.445% of the principal amount for an effective semi-annual yield to maturity of 2.584%. Combined, the new issues of the January 2027 Notes and the January 2042 Notes have a weighted average term of approximately 12.5 years and a weighted average effective semi-annual yield to maturity of approximately 2.28%.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration