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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2022
Accounting Policies [Abstract]  
Schedule Statements of Cash Flows Each of the Years Presented The following table summarizes the
immaterial revisions to our historical consolidated statements of cash flows for the six months ended June 30, 2021 (in millions):
Six Months Ended June 30, 2021
As Previously PresentedAdjustmentAs Adjusted
Purchases of invested margin deposits (within investing activities)$— $(1,644)$(1,644)
Proceeds from sales of invested margin deposits (within investing activities)— 2,222 2,222 
Net cash provided by investing activities966 578 1,544 
Change in cash and cash equivalent margin deposits and guaranty funds (within financing activities)— 7,780 7,780 
Net cash provided by/(used in) financing activities(2,518)7,780 5,262 
Net increase in cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds55 8,358 8,413 
Cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds at beginning of period1,991 81,628 83,619 
Cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds at end of period$2,046 $89,986 $92,032