Fair Value Measurements (Major Categories of Financial Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions		Dec. 31, 2019		Dec. 31, 2018
Other current assets		$ 157	[1]	$ 103	[2]
Investments	[3]			16
Other assets		92	[1],[4]	45	[2]
Other accrued liabilities		100	[1]	56	[2]
Other liabilities		165	[1]	406	[2],[5]
Significant Other Observable Inputs (Level 2) [Member]
Other current assets		157	[1]	103	[2]
Other assets		71	[1],[4]	45	[2]
Other accrued liabilities		100	[1]	56	[2]
Other liabilities		165	[1]	386	[2],[5]
Significant Unobservable Inputs (Level 3) [Member]
Investments	[3]			16
Other assets	[1],[4]	21
Other liabilities	[2],[5]			$ 20
Renewable Energy [Member]
Other assets		$ 21

[1] Derivative assets and liabilities include foreign exchange contracts which are measured using observable inputs for similar assets and liabilities.

[2] Derivative assets and liabilities include foreign exchange contracts which are measured using observable inputs for similar assets and liabilities

[3] One of the Company’s equity securities was measured using unobservable (Level 3) inputs, in the amount of $16 million.

[4] Other assets include one of the Company’s renewable energy derivative contracts that was measured using unobservable (Level 3) inputs, in the amount of $21 million.

[5] Other liabilities include contingent consideration that was measured using unobservable (Level 3) inputs, in the amount of $20 million.