Revenue from Contracts with Customers Revenue from Contracts with Customers - Schedule of Contract Assets and Contract Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2019	Apr. 01, 2018
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset, Net	$ 928	$ 432
Billed trade receivables	2,690	2,559
Unbilled trade receivables	945	1,250
Contract with Customer, Liability	1,009	1,104
Sales commissions, opening balance	1,219
Sales commissions, additions	1,147
Capitalized Contract Cost, Accumulated Amortization	807
Capitalized Contract Cost, Net	1,559	$ 1,219
Contract with Customer, Liability, Revenue Recognized	$ 1,000

Billed trade receivables

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- Definition

Sales commissions, additions

+ References

No definition available.

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- Definition

Sales commissions, opening balance

+ References

No definition available.

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- Definition

Unbilled trade receivables

+ References

No definition available.

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- Definition

Amount of accumulated amortization of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

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- Definition

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

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