Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accounts and notes receivable:
Allowance for doubtful receivables	$ 45	$ 42
Investments
Investments carried at fair value	1,584	1,699
Property
Other intangible assets, accumulated amortization	$ 3,886	$ 3,379
Common stock authorized (in shares)	5,000,000,000	100
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock issued (in shares)	751,228,644	100
Treasury stock (in shares)	9,729,834	0
Primary Beneficiary | Cash and Cash Equivalents
Pledged current assets	$ 37	$ 71
Primary Beneficiary | Property, Plant and Equipment
Property
Pledged noncurrent assets	330	683
Primary Beneficiary | Long-term Debt
Property
Noncurrent liabilities - nonrecourse	$ 34	$ 75