| Income Statement [Abstract] | |
| Net sales | 2.08B |
| Cost of goods sold | 1.71B |
| Gross margin | 366M |
| Selling, general and administrative | 123M |
| Research and development | 214M |
| Other operating (income) expense, net | |
| Operating income | -23M |
| Gain on acquisition of Numonyx | |
| Interest income | 3M |
| Interest expense | -56M |
| Other non-operating income (expense), net | -159M |
| Total income before income taxes | -235M |
| Income tax (provision) benefit | 9M |
| Equity in net income (loss) of equity method investees, net of tax | -58M |
| Net income | -284M |
| Net income attributable to noncontrolling interests | -2M |
| Net income attributable to Micron | -286M |
| Earnings per share: | |
| Basic (in dollars per share) | -0.28 |
| Diluted (in dollars per share) | -0.28 |
| Number of shares used in per share calculations: | |
| Basic (in shares) | 1.02B |
| Diluted (in shares) | 1.02B |