1. INTRODUCTION

2. DATA  
2.1. Dark Energy Survey SN sample  
2.2. Low redshift samples  
2.3. SN Photometry  
2.4. Calibration  
2.5. Host galaxy association, redshifts and host properties  
2.6. Non-Ia Classification  
2.7. Milky Way Extinction corrections  

3. COSMOLOGICAL ANALYSIS FRAMEWORK  
3.1. Light-curve fitting  
3.2. Measuring SN Ia distances  
3.3. The BEAMS approach  
3.4. Bias corrections  
3.5. SN distance uncertainties and intrinsic scatter  

4. SIMULATIONS AND DATA COMPARISON  
4.1. Overview of the simulations  
4.2. Simulation of SNe Ia  

5. THE HUBBLE DIAGRAM  
5.1. Sample selection  
5.2. Nuisance parameters  
5.3. Hubble residuals  

6. SYSTEMATIC UNCERTAINTIES  
6.1. Calibration and light-curve modeling  
6.2. SN Ia properties and astrophysics  
6.3. Milky Way extinction corrections  
6.4. Host association and survey modeling  
6.5. Contamination and photometric classification  
6.6. Redshift and Peculiar velocity corrections  

7. DISCUSSION  
7.1. Systematic uncertainty budget on w  
7.2. Validation of the BBC fitting approach and final cosmological contours  
7.3. Analysis variants and their impact on w