Short-term Borrowings and Current Portion of Long-term Debt (Schedule of Short-term Debt) (Details) - USD ($) $ in Millions	May. 02, 2013	Sep. 30, 2015	Apr. 09, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Short-term Debt		$ 1,280		$ 677
Current portion of long-term debt		404		50
Short-term borrowings and current portion of long-term debt		1,684		727
Commercial paper program [Member]
Short-term Debt [Line Items]
Short-term Debt		509		245
Revolving credit facility [Member]
Short-term Debt [Line Items]
Short-term Debt		530		0
364-day term loan facility [Member]
Short-term Debt [Line Items]
Short-term Debt		0	$ 175	175
Debt instrument, term	364 days
Other short-term bank loans [Member]
Short-term Debt [Line Items]
Short-term Debt		$ 241		$ 257