Subsequent Events (Details) - USD ($)	Jul. 16, 2016	Jun. 30, 2016
Subsequent Event [Line Items]
Stock repurchase program, authorized amount		$ 1,400,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Stock repurchase program, authorized amount	$ 100,000,000
Contributions to pension plans	$ 50,000,000