Summary of Significant Accounting Policies - Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Millions	3 Months Ended
Jun. 26, 2021	Jun. 27, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used in operating leases	$ 149	$ 40
COVID-19
Cash paid for amounts included in the measurement of lease liabilities:
Deferred rent payments	$ 4	$ 85

Amount of excess of rental income recognized over rental payment required by lease.

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-Name Accounting Standards Codification
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Balance Type:	debit
Period Type:	instant