Organization and Basis of Presentation (Consolidated Variable Interest Entities) (Details) - USD ($) $ in Millions	8 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 93	$ 93	$ 71
Restricted cash	0	0	5
Accounts receivable	1,642	1,642	1,789
Property, plant, and equipment, net	25,317	25,317	21,650
Goodwill	2,464	2,464	2,293	$ 2,293
Intangible assets	2,378	2,378	828
Total Assets	41,882	41,882	36,288	$ 33,767
Variable interest entity, primary beneficiary, restricted
ASSETS
Cash and cash equivalents	27	27	39
Restricted cash	0	0	5
Accounts receivable	27	27	46
Inventories	74	74	93
Property, plant, and equipment, net	443	443	441
Goodwill	25	25	25
Intangible assets	542	542	557
Other current and long-term assets	2	2	3
Total Assets	1,140	1,140	1,209
LIABILITIES
Accounts payable and accrued current liabilities	15	15	34
Other current and long-term liabilities	14	14	19
Total liabilities	29	29	53
SGG
ASSETS
Cash and cash equivalents	16	16	25
Restricted cash	0	0	0
Accounts receivable	8	8	9
Inventories	0	0	1
Property, plant, and equipment, net	410	410	395
Goodwill	25	25	25
Intangible assets	542	542	557
Other current and long-term assets	2	2	3
Total Assets	1,003	1,003	1,015
LIABILITIES
Accounts payable and accrued current liabilities	2	2	3
Other current and long-term liabilities	7	7	9
Total liabilities	$ 9	$ 9	$ 12
VIE ownership and non-ownership percentage		100.00%
VIE ownership percentage	85.00%		55.00%
Other
ASSETS
Cash and cash equivalents	$ 11	$ 11	$ 14
Restricted cash	0	0	5
Accounts receivable	19	19	37
Inventories	74	74	92
Property, plant, and equipment, net	33	33	46
Goodwill	0	0	0
Intangible assets	0	0	0
Other current and long-term assets	0	0	0
Total Assets	137	137	194
LIABILITIES
Accounts payable and accrued current liabilities	13	13	31
Other current and long-term liabilities	7	7	10
Total liabilities	$ 20	$ 20	$ 41