Derivative Instruments - Narrative (Details) - Derivatives Designated for Hedge Accounting - USD ($)	Oct. 02, 2020	Mar. 31, 2020
Derivative [Line Items]
Derivative liabilities	$ 79,000,000	$ 87,000,000
Interest rate swaps
Derivative [Line Items]
Cash flow hedge gain to be reclassified during next 12 months	39,000,000
Interest rate swaps | Other current liabilities
Derivative [Line Items]
Derivative liabilities	38,000,000	37,000,000
Interest rate swaps | Other liabilities
Derivative [Line Items]
Derivative liabilities	41,000,000	$ 50,000,000
Cash Flow Hedging | Interest rate swaps
Derivative [Line Items]
Derivative notional amount	$ 2,500,000,000