Debt Instruments Principal Amounts Associated With Interest Rates (Parenthetical) (Detail)	Jun. 29, 2013
Floating-rate notes, due 2016
Debt Instrument [Line Items]
Debt instrument maturity year	2016
Floating-rate notes, due 2018
Debt Instrument [Line Items]
Debt instrument maturity year	2018
Fixed-rate 0.45% notes due 2016
Debt Instrument [Line Items]
Debt instrument interest rate	0.45%
Debt instrument maturity year	2016
Fixed-rate 1.00% notes due 2018
Debt Instrument [Line Items]
Debt instrument interest rate	1.00%
Debt instrument maturity year	2018
Fixed-rate 2.40% notes due 2023
Debt Instrument [Line Items]
Debt instrument interest rate	2.40%
Debt instrument maturity year	2023
Fixed-rate 3.85% notes due 2043
Debt Instrument [Line Items]
Debt instrument interest rate	3.85%
Debt instrument maturity year	2043