Annual report pursuant to Section 13 and 15(d)

RELATED PARTIES (Summary Of Related Party Transactions Table Disclosure) (Details)

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RELATED PARTIES (Summary Of Related Party Transactions Table Disclosure) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]                      
Revenues $ 534.1 $ 555.6 $ 743.2 $ 157.0 $ 696.3 $ 741.8 $ 714.3 $ 180.0 $ 1,989.9 $ 2,332.4 $ 1,866.0
Product [Member]                      
Related Party Transaction [Line Items]                      
Product revenues from related parties                 915.3 1,234.5 806.7
Revenues                 $ 1,848.1 $ 2,172.3 $ 1,644.6
Related party product revenue as a percent of total product revenue                 49.50% 56.80% 49.10%