Debt	9 Months Ended
Sep. 30, 2015
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Debt On February 20, 2015, we issued $750 of fixed rate senior notes consisting of $250 due March 1, 2025 that bear an annual interest rate of 2.5%, $250 due March 1, 2035 that bear an annual interest rate of 3.3%, and $250 due March 1, 2045 that bear an annual interest rate of 3.5%. 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 $722, after deducting underwriting discounts, commissions and offering expenses.

Debt

9 Months Ended

Sep. 30, 2015

Debt

On February 20, 2015, we issued $750 of fixed rate senior notes consisting of $250 due March 1, 2025 that bear an annual interest rate of 2.5%, $250 due March 1, 2035 that bear an annual interest rate of 3.3%, and $250 due March 1, 2045 that bear an annual interest rate of 3.5%. 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 $722, after deducting underwriting discounts, commissions and offering expenses.