Debt	3 Months Ended
Mar. 31, 2019
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	On February 15, 2019, we issued $1,500 of fixed rate senior notes consisting of $400 due March 1, 2024 that bear an annual interest rate of 2.8%, $400 due March 1, 2029 that bear an annual interest rate of 3.20%, $400 due March 1, 2039 that bear an annual interest rate of 3.5%, and $300 due March 1, 2059 that bear an annual interest rate of 3.825%. The notes are unsecured senior obligations and rank equally in right of payment with our existing and future unsecured and unsubordinated indebtedness. The net proceeds of the issuance totaled $1,451, after deducting underwriting discounts, commissions and offering expenses.

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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