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Research and Development	6 Months Ended
Research and Development	Feb. 28, 2019
Research and Development [Abstract]
Research and Development	Research and Development We share the cost of certain product and process development activities with development partners. Our R&D expenses were reduced by $23 million and $53 million for the second quarter and first six months of 2019, respectively, and by $58 million and $114 million for the second quarter and first six months of 2018, respectively, pursuant to reimbursements under these arrangements. We have agreements to jointly develop NAND and 3D XPoint technologies with Intel. We continue to jointly develop NAND technologies with Intel through the third generation of 3D NAND, which is expected to be completed in the second half of 2019. In the second quarter of 2018, we and Intel agreed to independently develop subsequent generations of 3D NAND in order to better optimize the technology and products for our respective business needs. We continue to jointly develop 3D XPoint technologies with Intel through the second generation of 3D XPoint technology, which is expected to be completed in the second half of 2019. To better optimize 3D XPoint technology for our product roadmap and maximize the benefits for our customers and shareholders, in the fourth quarter of 2018, we announced that we will no longer jointly develop with Intel subsequent generations of 3D XPoint technology.