Note 8 - Stock-Based Compensation (Details) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
Nov. 29, 2014 | Nov. 30, 2013 | Nov. 29, 2014 | Nov. 30, 2013 | Mar. 01, 2014 |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Allocated Share-based Compensation Expense (in Dollars) | $15,500,000 | $13,600,000 | $49,300,000 | $42,100,000 | |
Allocated Share-based Compensation Expense, Net of Tax (in Dollars) | 10,500,000 | 8,600,000 | 31,700,000 | 26,700,000 | |
Stock Based Compensation Expense Impact On Diluted Earnings Per Share (in Dollars per share) | $0.06 | $0.04 | $0.16 | $0.12 | |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount (in Dollars) | | | 1,300,000 | 1,200,000 | |
Proceeds from Stock Options Exercised (in Dollars) | | | 24,790,000 | 54,431,000 | |
Scenario, Assumption [Member] | Performance Share Unit (PSUs) [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Target Award, Percentage | 100.00% | | 100.00% | | |
Restricted Stock [Member] | The 2012 Plan [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 5 years | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Minimum | | | 1 year | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Maximum | | | 3 years | | |
Restricted Stock [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 5 years | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Minimum | | | 1 year | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Maximum | | | 3 years | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) | 138,600,000 | | 138,600,000 | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition | | | 3 years 255 days | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares) | | | 823,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) | | | $62.33 | | |
Employee Stock Option [Member] | The 2012 Plan [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 5 years | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Minimum | | | 1 year | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Maximum | | | 3 years | | |
Employee Stock Option [Member] | Minimum [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 3 years | | |
Employee Stock Option [Member] | Maximum [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 5 years | | |
Employee Stock Option [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) | 27,700,000 | | 27,700,000 | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition | | | 2 years 328 days | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) | | | $20.96 | $22.28 | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | | 4 years 36 days | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value (in Dollars) | 94,700,000 | | 94,700,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term | | | 2 years 328 days | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value (in Dollars) | 73,300,000 | | 73,300,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars) | | | 19,400,000 | 44,400,000 | |
Proceeds from Stock Options Exercised (in Dollars) | | | 24,800,000 | | |
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (in Dollars) | | | 10,500,000 | | |
Performance Share Unit (PSUs) [Member] | The 2012 Plan [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 4 years | | |
Performance Share Unit (PSUs) [Member] | Minimum [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Target Award, Percentage | 0.00% | | 0.00% | | |
Performance Share Unit (PSUs) [Member] | Maximum [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Target Award, Percentage | 150.00% | | 150.00% | | |
Performance Share Unit (PSUs) [Member] | One-Year Performance Period Awards [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | | 3 years | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Minimum | | | 1 year | | |
Performance Share Unit (PSUs) [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) | $17,400,000 | | $17,400,000 | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition | | | 2 years 255 days | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares) | | | 390,803 | | 0 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) | | | $62.34 | | |
Employee Stock Option Issued Since May 10, 2010 [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share Based Compensation Arrangement By Share Based Payment Award Requisite Service Period | | | 1 year | | |
Employee Stock Option Issued Prior to May 10, 2010 [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Minimum | | | 1 year | | |
Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period Maximum | | | 3 years | | |
Employee Stock Option Issued Since May 10, 2004 [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | | | 8 years | | |
Employee Stock Option Issued Prior to May 10, 2004 [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | | | 10 years | | |
The 2012 Plan [Member] | | | | | |
Note 8 - Stock-Based Compensation (Details) [Line Items] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) | 43,200,000 | | 43,200,000 | | |