Debt	6 Months Ended
Jun. 30, 2017
Debt disclosure
Debt disclosure [Text Block]	8. DEBT Debt Issuance. On May 22, 2017, the Company issued $700 million aggregate principal amount of 4.00% senior notes that will mature on May 30, 2047. The net proceeds of the issuance, after the deduction of the underwriting discount and expenses payable by the Company, totaled approximately $689 million. Interest on the senior notes is payable semi-annually in arrears on May 30 and November 30, commencing on November 30, 2017. Prior to November 30, 2046, the senior notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to the greater of (a) 100% of the principal amount of any senior notes to be redeemed or (b) the sum of the present values of the remaining scheduled payments of principal and interest to November 30, 2046 on any senior notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury rate (as defined in the senior notes), plus 15 basis points. On or after November 30, 2046, the senior notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to 100% of the principal amount of any senior notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. Debt Redemption. On June 2, 2017, the Company redeemed the remaining $107 million aggregate principal amount of its 6.25% Fixed-to-Floating Rate Junior Subordinated Debentures due 2067 at a price per debenture of 100% of the principal amount thereof, plus accrued and unpaid interest to the redemption date. Commercial Paper. The Company had $0 and $100 million of commercial paper outstanding at June 30, 2017 and December 31, 2016, respectively.

8. DEBT

Debt Issuance. On May 22, 2017, the Company issued $700 million aggregate principal amount of 4.00% senior notes that will mature on May 30, 2047. The net proceeds of the issuance, after the deduction of the underwriting discount and expenses payable by the Company, totaled approximately $689 million. Interest on the senior notes is payable semi-annually in arrears on May 30 and November 30, commencing on November 30, 2017. Prior to November 30, 2046, the senior notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to the greater of (a) 100% of the principal amount of any senior notes to be redeemed or (b) the sum of the present values of the remaining scheduled payments of principal and interest to November 30, 2046 on any senior notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury rate (as defined in the senior notes), plus 15 basis points. On or after November 30, 2046, the senior notes may be redeemed, in whole or in part, at the Company’s option, at any time or from time to time, at a redemption price equal to 100% of the principal amount of any senior notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.

Debt Redemption. On June 2, 2017, the Company redeemed the remaining $107 million aggregate principal amount of its 6.25% Fixed-to-Floating Rate Junior Subordinated Debentures due 2067 at a price per debenture of 100% of the principal amount thereof, plus accrued and unpaid interest to the redemption date.

Commercial Paper. The Company had $0 and $100 million of commercial paper outstanding at June 30, 2017 and December 31, 2016, respectively.