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Taxes - Significant Differences Between United States Federal Statutory Tax Rate and Company's Effective Tax Rate (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Apr. 01, 2017
Tax Credit Carryforward [Line Items]      
Provision for income taxes at the U.K. statutory tax rate 19.00% 19.00% 20.00%
State and local income taxes, net of federal benefit 0.90% 0.50% 1.30%
Effects of global financing arrangements (8.10%) (15.60%) (13.70%)
U.S. tax reform 0.00% 2.00% 0.00%
Differences in tax effects on foreign income (1.80%) 6.70% 11.10%
Liability for uncertain tax positions 1.30% 6.60% 0.00%
Effect of changes in valuation allowances on deferred tax assets 2.80% 0.30% 0.50%
Excess tax benefits related to stock-based compensation (2.60%) (0.80%) 0.00%
Transaction costs 1.50% 0.90% 0.00%
Withholding tax 0.60% 1.20% 0.00%
Other (0.90%) (0.60%) 0.70%
Effective tax rate 12.70% 20.20% 19.90%
Income tax expense from re-measurement of deferred tax assets   $ 18  
Capital loss $ 11    
US      
Tax Credit Carryforward [Line Items]      
Provision for income taxes at the U.K. statutory tax rate 31.54%