Annual report pursuant to Section 13 and 15(d)

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)

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BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2018
Dec. 31, 2019
Jan. 01, 2019
Jan. 01, 2018
Recent issued accounting guidance [Line Items]          
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 6.0 5.0      
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 21,284   $ 21,098    
Revision of Prior Period, Accounting Standards Update, Adjustment          
Recent issued accounting guidance [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest         $ 2,900
Accounting Standards Update 2014-09 [Member] | Cumulative Effect, Period of Adoption, Adjustment          
Recent issued accounting guidance [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest         (257)
Accounting Standards Update 2016-01 [Member] | Cumulative Effect, Period of Adoption, Adjustment          
Recent issued accounting guidance [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest         $ 409
Accounting Standards Update 2017-12 [Member] | Cumulative Effect, Period of Adoption, Adjustment          
Recent issued accounting guidance [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest       $ (12)  
Accounting Standards Update 2018-02 [Member] | Cumulative Effect, Period of Adoption, Adjustment          
Recent issued accounting guidance [Line Items]          
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest       $ 558