UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K Title of each class Name of each exchange on which registered Common Stock, par value $0.01 per share New York Stock Exchange 1.50% Notes Due 2023 New York Stock Exchange 1.875% Notes Due 2026 New York Stock Exchange (Mark One) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURIT ...