Debt	3 Months Ended
Mar. 31, 2019
Debt Disclosure [Abstract]
Debt	Issuance of long-term debt During the first quarter of 2019, the Company issued $400 million 3.150% 10-year notes due March 13, 2029 for net proceeds of $397 million. These Notes pay interest semi-annually and are unsecured but carry a negative pledge.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

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