Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Trade (allowance for doubtful receivables)	$ 109	$ 106
Other investments (investments carried at fair value)	1,796	1,699
Other intangible assets (accumulated amortization)	$ 5,912	$ 5,762
Common Stock, Shares Authorized	100	100
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares, Issued	100	100
Treasury Stock, Shares	0	0
Cash and cash equivalents | Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents (variable interest entities restricted)	$ 109	$ 82
Property, Plant and Equipment [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Net property (variable interest entities restricted)	$ 718	734
Long-term debt | Variable Interest Entity, Primary Beneficiary [Member]
Long Term Debt (variable interest entities nonrecourse)		$ 75