Consolidated Statements of Changes in Equity (Parenthetical) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Additional Paid-in Capital, value of stock	$ 35,334	$ 33,613	$ 32,433	$ 31,848
Common Stock [Member]
Additional Paid-in Capital, value of stock	$ 2	$ 2	$ 2	$ 2
Dividends declared, amount per share	$ 14.52	$ 13.20	$ 12.02

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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+ Details