Debt (Schedule of Short-term Debt) (Details) - USD ($) $ in Millions		Dec. 31, 2015		Dec. 31, 2014
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Current installments of long-term debt		$ 56		$ 25
Short-term borrowings, including amounts due to affiliates	[1]	52		77
Total		$ 513		$ 137
Weighted average interest rate, short-term borrowings		3.30%		4.70%
Revolving Credit Facility [Member]
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Accounts receivable securitization facility	[3]	$ 350	[2]	$ 0
Weighted average interest rate, credit facility		1.80%		0.00%
Accounts Receivable Securitization Facility [Member]
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Accounts receivable securitization facility	[5]	$ 55	[4]	$ 35
Weighted average interest rate, credit facility		0.80%		0.70%

[1] The weighted average interest rate was 3.3% and 4.7% as of December 31, 2015 and 2014, respectively.

[2] The Company borrowed $550 million and repaid $200 million during the year ended December 31, 2015. Borrowings were primarily used to fund repurchases of the Company's Common Stock.

[3] The weighted average interest rate was 1.8% and 0.0% as of December 31, 2015 and 2014, respectively.

[4] The Company borrowed $35 million and repaid $15 million during the year ended December 31, 2015.

[5] The weighted average interest rate was 0.8% and 0.7% as of December 31, 2015 and 2014, respectively.