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SUPPLEMENTAL FINANCIAL INFORMATION
 12 Months Ended
Dec. 31, 2021
Supplemental Financial Information [Abstract]  
Supplemental Financial Information SUPPLEMENTAL FINANCIAL INFORMATION
 December 31,
Dollars in Millions20212020
Income taxes$2,786 $1,799 
Research and development514 492 
Contract assets361 254 
Equity investments255 619 
Restricted cash(a)
140 89 
Other776 533 
Other current assets$4,832 $3,786 
 December 31,
Dollars in Millions20212020
Equity investments$2,713 $4,076 
Inventories909 1,080 
Operating leases919 859 
Pension and postretirement317 208 
Research and development248 206 
Restricted cash(a)
197 338 
Other232 252 
Other non-current assets$5,535 $7,019 
(a)    Restricted cash consists of funds restricted for annual Company contributions to the defined contribution plan in the U.S. and escrow for litigation settlements. Cash is restricted when withdrawal or general use is contractually or legally restricted.
 December 31,
Dollars in Millions20212020
Rebates and discounts$6,399 $5,688 
Income taxes754 647 
Employee compensation and benefits1,375 1,412 
Research and development1,373 1,423 
Dividends1,186 1,129 
Interest378 434 
Royalties410 461 
Operating leases169 164 
Contingent value rights— 515 
Other1,927 2,154 
Other current liabilities$13,971 $14,027 
 December 31,
Dollars in Millions20212020
Income taxes payable$4,835 $5,017 
Pension and postretirement654 899 
Operating leases874 833 
Deferred income326 357 
Deferred compensation427 344 
Other218 326 
Other non-current liabilities$7,334 $7,776