Fair Value Measurements, Assets and Liabilities (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets [Abstract]
Cash equivalents	$ 2,210	$ 8,971
Investments	298	21
Warrants	15	7
Insurance contracts	181	157
Derivative contracts	36	28
Total assets	2,740	9,184
Liabilities [Abstract]
Derivative contracts	1	132
Contingent consideration	317	70
Total liabilities	318	202
Quoted Prices in Active Markets (Level I) [Member]
Assets [Abstract]
Cash equivalents	2,210	8,971
Investments	298	21
Total assets	2,508	8,992
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Warrants	15	7
Insurance contracts	181	157
Derivative contracts	36	28
Total assets	232	192
Liabilities [Abstract]
Derivative contracts	1	132
Total liabilities	1	132
Significant Unobservable Inputs (Level 3) [Member]
Liabilities [Abstract]
Contingent consideration	317	70
Total liabilities	$ 317	$ 70