Financial Instruments - Investments in Debt Securities (Detail) $ in Millions	Apr. 03, 2016 USD ($)
Schedule of Investments [Line Items]
Debt securities maturities within one year	$ 16,744
Debt securities maturities over 1 to 5 years	10,109
Debt securities maturities over 5 to 10 years	2,001
Debt securities maturities after 10 years	31
Total debt securities	28,884
Western European, Asian, Scandinavian and Other Government Debt [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	7,056	[1]
Available-for-sale debt securities maturities over 1 to 5 years	1,033	[1]
Available-for-sale debt securities maturities over 5 to 10 years	8	[1]
Available-for-sale debt securities maturities over 10 years	0	[1]
Available-for-sale debt securities maturities total	8,097	[1]
Corporate debt [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	3,223	[2]
Available-for-sale debt securities maturities over 1 to 5 years	4,786	[2]
Available-for-sale debt securities maturities over 5 to 10 years	1,656	[2]
Available-for-sale debt securities maturities over 10 years	15	[2]
Available-for-sale debt securities maturities total	9,680	[2]
U.S. government debt [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	1,812
Available-for-sale debt securities maturities over 1 to 5 years	848
Available-for-sale debt securities maturities over 5 to 10 years	207
Available-for-sale debt securities maturities over 10 years	0
Available-for-sale debt securities maturities total	2,867
Federal Home Loan Mortgage Corporation and Federal National Mortgage Association asset-backed securities [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	34
Available-for-sale debt securities maturities over 1 to 5 years	2,110
Available-for-sale debt securities maturities over 5 to 10 years	71
Available-for-sale debt securities maturities over 10 years	11
Available-for-sale debt securities maturities total	2,227
Western European, Scandinavian and Other Government Agency Debt [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	1,587	[1]
Available-for-sale debt securities maturities over 1 to 5 years	210	[1]
Available-for-sale debt securities maturities over 5 to 10 years	0	[1]
Available-for-sale debt securities maturities over 10 years	0	[1]
Available-for-sale debt securities maturities total	1,797	[1]
Supranational Debt [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	911	[1]
Available-for-sale debt securities maturities over 1 to 5 years	323	[1]
Available-for-sale debt securities maturities over 5 to 10 years	0	[1]
Available-for-sale debt securities maturities over 10 years	0	[1]
Available-for-sale debt securities maturities total	1,234	[1]
Government National Mortgage Association and other U.S. government guaranteed asset-back securities [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	599
Available-for-sale debt securities maturities over 1 to 5 years	112
Available-for-sale debt securities maturities over 5 to 10 years	18
Available-for-sale debt securities maturities over 10 years	0
Available-for-sale debt securities maturities total	729
Other asset-backed debt [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities maturities within 1 year	461	[3]
Available-for-sale debt securities maturities over 1 to 5 years	682	[3]
Available-for-sale debt securities maturities over 5 to 10 years	40	[3]
Available-for-sale debt securities maturities over 10 years	4	[3]
Available-for-sale debt securities maturities total	1,188	[3]
Time deposits and other [Member]
Schedule of Investments [Line Items]
Held-to-maturity debt securities maturities within 1 year	1,024
Held-to-maturity debt securities with maturities over 1 to 5 years	5
Held-to-maturity debt securities maturities over 5 to 10 years	0
Held-to-maturity debt securities maturities over 10 years	0
Held-to-maturity debt securities maturities total	1,029
Western European Government Debt [Member]
Schedule of Investments [Line Items]
Held-to-maturity debt securities maturities within 1 year	36	[1]
Held-to-maturity debt securities with maturities over 1 to 5 years	0	[1]
Held-to-maturity debt securities maturities over 5 to 10 years	0	[1]
Held-to-maturity debt securities maturities over 10 years	0	[1]
Held-to-maturity debt securities maturities total	$ 36	[1]

[1] Issued by governments, government agencies or supranational entities, as applicable, all of which are investment-grade.

[2] Issued by a diverse group of corporations, largely consisting of financial institutions, virtually all of which are investment-grade.

[3] Includes loan-backed, receivable-backed, and mortgage-backed securities, all of which are investment-grade and in senior positions in the capital structure of the security. Loan-backed securities are collateralized by senior secured obligations of a diverse pool of companies or student loans, and receivable-backed securities are collateralized by credit cards receivables. Mortgage-backed securities are collateralized by diversified pools of residential and commercial mortgages. These securities are valued by third party models that use significant inputs derived from observable market data like prepayment rates, default rates, and recovery rates.