Fair Value Measurements, Assets and Liabilities (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions	Jun. 29, 2019	Dec. 31, 2018
Assets [Abstract]
Cash equivalents	$ 1,117	$ 769
Bank time deposits		2
Investments in common stock, mutual funds and other similar instruments	20	10
Warrants	6	8
Insurance contracts	123	113
Derivative contracts	42	31
Total Assets	1,308	933
Liabilities [Abstract]
Derivative contracts	66	145
Contingent consideration	58	37
Total Liabilities	124	182
Quoted Prices in Active Markets (Level I) [Member]
Assets [Abstract]
Cash equivalents	1,117	769
Bank time deposits		2
Investments in common stock, mutual funds and other similar instruments	20	10
Total Assets	1,137	781
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Warrants	6	8
Insurance contracts	123	113
Derivative contracts	42	31
Total Assets	171	152
Liabilities [Abstract]
Derivative contracts	66	145
Total Liabilities	66	145
Significant Unobservable Inputs (Level 3) [Member]
Liabilities [Abstract]
Contingent consideration	58	37
Total Liabilities	$ 58	$ 37