Long-Term Debt (Details) - Notes Payable [Member] - USD ($)	1 Months Ended
	Jun. 30, 2016	May 31, 2016
Debt Instrument [Line Items]
Debt instrument, face amount		$ 1,350,000,000.000
Floating Rate Notes due 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		850,000,000
1.561% Notes due 2019 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 1,350,000,000.000
Debt instrument, interest rate, stated percentage		1.561%
Floating Rate Notes due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 250,000,000
2.100% Notes due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		2.10%
2.566% Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 750,000,000
Debt instrument, interest rate, stated percentage		2.566%
2.954% Notes due 2026 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 2,250,000,000.000
Debt instrument, interest rate, stated percentage		2.954%
0.889% Notes due 2016 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	0.889%
Extinguishment of debt, amount	$ 750,000,000