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Investments (Tables)
 6 Months Ended
Jun. 30, 2021
Investments [Abstract]  
Investment and Other Income (Loss), Net
Investment and Other Income (Loss), Net
 Three Months Ended
June 30,		Six Months Ended
June 30,
(in millions)2021202020212020
Equity in net income (losses) of investees, net$959 $300 $1,095 $(368)
Realized and unrealized gains (losses) on equity securities, net
189 5 426 (53)
Other income (loss), net69 115 87 125 
Investment and other income (loss), net$1,216 $420 $1,607 $(296)
Investment Summary
(in millions)June 30,
2021		December 31,
2020
Equity method$6,921 $6,006 
Marketable equity securities338 460 
Nonmarketable equity securities2,116 1,950 
Other investments131 143 
Total investments9,506 8,559 
Less: Current investments39 292 
Less: Investment securing collateralized obligation564 447 
Noncurrent investments$8,903 $7,820