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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Equity (ADDCL) (Details) - USD ($) $ in Millions		12 Months Ended
Equity (ADDCL) (Details) - USD ($) $ in Millions	Jun. 11, 2018	Dec. 31, 2019	Dec. 31, 2018
Variable Interest Entity
Payment to acquire interest		$ 77	$ 107
Acquisition of redeemable noncontrolling interest			53
Carrying amounts associated with consolidated variable interest entities
Assets		24,105	$ 25,665
ADDCL
Variable Interest Entity
Ownership interest in affiliate (as a percent)	65.00%
ADDCL \| Angco Cayman Limited
Variable Interest Entity
Ownership interest held by minority interest (as a percent)	35.00%
ADDCL
Variable Interest Entity
Payment to acquire interest	$ 0
Acquisition of redeemable noncontrolling interest		$ 53