CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
INVESTMENTS IN UNCONSOLIDATED ENTITIES ($2,261 related to WES)	$ 3,684	$ 1,680
INTANGIBLES, NET	2,387	8
Accrued liabilities	5,175	2,411
Deferred income taxes ($1,167 related to WES)	9,920	907
Asset retirement obligations	$ 4,164	$ 1,424
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, outstanding (in shares)	100,000	0
Common stock, par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, outstanding (in shares)	1,043,640,621	895,115,637
Treasury stock (in shares)	150,323,151	145,726,051
WES
INVESTMENTS IN UNCONSOLIDATED ENTITIES ($2,261 related to WES)	$ 2,261
INTANGIBLES, NET	2,380
Accrued liabilities	315
Deferred income taxes ($1,167 related to WES)	1,167
Asset retirement obligations	$ 319

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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